# Plottier Formation > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Plottier_Formation > Markdown URL: https://mediated.wiki/source/Plottier_Formation.md > Source: https://en.wikipedia.org/wiki/Plottier_Formation > Source revision: 1355457966 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{Short description|Geologic formation in Argentina}} {{Infobox rockunit | name = Plottier Formation | image = | caption = | type = [Geological formation](/source/Geological_formation) | period = Coniacian | age = late [Coniacian](/source/Coniacian)-early [Santonian](/source/Santonian)
~{{fossil range|86|85}} | prilithology = [Claystone](/source/Claystone) | otherlithology = [Sandstone](/source/Sandstone) | namedfor = [Plottier](/source/Plottier) | namedby = Fossa Mancini ''et al.'' | year_ts = 1938 | region = [Mendoza](/source/Mendoza_Province), [Neuquén](/source/Neuqu%C3%A9n_Province) & [Río Negro Province](/source/R%C3%ADo_Negro_Province)s | country = Argentina | coordinates = {{coord|37.4|S|69.1|W|display=inline,title}} | paleocoordinates = {{coord|42.2|S|49.4|W|display=inline}} | unitof = [Neuquén Group](/source/Neuqu%C3%A9n_Group)
 [Río Neuquén Subgroup](/source/R%C3%ADo_Neuqu%C3%A9n_Subgroup) | subunits = | underlies = [Río Colorado Subgroup](/source/R%C3%ADo_Colorado_Subgroup)
 [Bajo de la Carpa Formation](/source/Bajo_de_la_Carpa_Formation) | overlies = [Sierra Barrosa Formation](/source/Sierra_Barrosa_Formation) | thickness = Up to {{convert|25|m|ft|abbr=on}} | extent = [Neuquén Basin](/source/Neuqu%C3%A9n_Basin) | area = | map = {{Location map+ | Argentina | relief = 1 | width = 250 | float = center | places = {{Location map~ | Argentina | lat_deg = -37.4 | lon_deg = -69.1 | mark = Lightgreen pog.svg | marksize = 12 }} }} | map_caption = }} The '''Plottier Formation''' is a [geologic formation](/source/geologic_formation) that [outcrop](/source/outcrop)s in the [Argentine](/source/Argentina) [Patagonia](/source/Patagonia)n provinces of [Río Negro](/source/R%C3%ADo_Negro_Province) and [Neuquén](/source/Neuqu%C3%A9n_Province). It is the younger of two formations belonging to the [Río Neuquén Subgroup](/source/R%C3%ADo_Neuqu%C3%A9n_Subgroup) within the [Neuquén Group](/source/Neuqu%C3%A9n_Group) of the [Neuquén Basin](/source/Neuqu%C3%A9n_Basin), with the oldest rocks dating from the late [Coniacian](/source/Coniacian) and its youngest maybe from the very start of the [Santonian](/source/Santonian). Formerly, that subgroup was treated as a formation, and the Plottier Formation was known as the '''Plottier Member'''.Sánchez ''et al.'', 2006 == Description == A section near the [Neuquén City](/source/Neuqu%C3%A9n) [airport](/source/airport), north of the town of [Plottier](/source/Plottier), is the type locality of the Plottier Formation.Fossa Mancini ''et al.'', 1938 At its base, this formation grades into the [Portezuelo Formation](/source/Portezuelo_Formation), and it is in turn overlain [conformably](/source/unconformity) by the [Bajo de la Carpa Formation](/source/Bajo_de_la_Carpa_Formation), a unit of the Río Colorado Subgroup. The Plottier Formation is the thinnest formation within the Neuquén Group, with a maximum thickness of only {{convert|25|m|ft}}. It is differentiated from the underlying [Portezuelo Formation](/source/Portezuelo_Formation) primarily by its higher content of [argillite](/source/argillite)s (mud deposits) and was deposited under [fluvial](/source/fluvial) conditions. In 2006, a detailed [lithostratigraphic](/source/Lithostratigraphy) and [paleoecological](/source/paleoecology) study of a section of the Plottier Formation was published. This section contained [alluvial](/source/alluvial) deposits laid down by what was essentially a low-gradient [wandering river](/source/Channel_types) throughout the [millions of years](/source/mya_(unit)), but often was of a single-channel type with little [meander](/source/meander)ing.Leanza ''et al.'', 2004 ==Fossil content== {{Paleobiota-key-compact}} Few [animal](/source/animal) fossils are known from this formation, including:[https://paleobiodb.org/classic/displayCollResults?geological_group=Neuqu%E9n&formation=Plottier Plottier Formation] at [Fossilworks](/source/Fossilworks).org ===Crocodyliformes=== {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''[Crocodyliformes](/source/Crocodyliformes) reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |[Crocodyliformes](/source/Crocodyliformes) indet.{{Cite journal |last1=Salgado |first1=Leonardo |last2=Canudo |first2=José I. |last3=Garrido |first3=Alberto C. |last4=Ruiz-Omeñaca |first4=José I. |last5=García |first5=Rodolfo A. |last6=de la Fuente |first6=Marcelo S. |last7=Barco |first7=José L. |last8=Bollati |first8=Raúl |date=2009-06-01 |title=Upper Cretaceous vertebrates from El Anfiteatro area, Río Negro, Patagonia, Argentina |url=https://linkinghub.elsevier.com/retrieve/pii/S0195667109000032 |journal=Cretaceous Research |volume=30 |issue=3 |pages=767–784 |doi=10.1016/j.cretres.2009.01.001 |bibcode=2009CrRes..30..767S |issn=0195-6671|url-access=subscription }} |Indeterminate |El Anfiteatro | *Seven osteoderms (MPCA-AT 251–257) *Right dentary fragment (MPCA-AT 75) |Resembles [peirosaurids](/source/peirosaurids) such as ''[Peirosaurus](/source/Peirosaurus)'' and ''[Uberabasuchus](/source/Uberabasuchus)'' | |- |''[Lomasuchus](/source/Lomasuchus)''{{Cite journal |last1=Gasparini |first1=Zulma |last2=Chiappe |first2=Luis M. |last3=Fernandez |first3=Marta |date=1991-09-30 |title=A new Senonian peirosaurid (Crocodylomorpha) from Argentina and a synopsis of the South American Cretaceous crocodilians |url=https://www.researchgate.net/publication/254313755 |journal=Journal of Vertebrate Paleontology |language=en |volume=11 |issue=3 |pages=316–333 |doi=10.1080/02724634.1991.10011401 |bibcode=1991JVPal..11..316G |issn=0272-4634}}{{cite journal |author1=Diego Pol |author2=Zulma Brandoni de Gasparini |author-link2=Zulma Brandoni de Gasparini |name-list-style=amp |year=2007 |title=Crocodyliformes |url=https://books.google.com/books?id=5YFOAQAAIAAJ |journal=In: Patagonian Mesozoic Reptiles. Gasparini, Z., Coria, R., & Salgado, L. (Eds.). Indiana University Press |pages=116–142|isbn=978-0-253-34857-9 }} |''L. palpebrosus'' |[Embalse Cerros Colorados](/source/Embalse_Cerros_Colorados) |Skull and partial [mandibular ramus](/source/mandibular_ramus) |A [peirosaurid](/source/peirosaurid), specimen originally claimed to originate from the [Rio Colorado formation](/source/Rio_Colorado_formation). | |- |[Mesoeucrocodylia](/source/Mesoeucrocodylia) indet.{{Cite journal |last=Arcucci |first=Andrea |date=2011-01-01 |title=Un nuevo Mesoeucrocodylia cretácico del norte de la Cuenca Neuquina, Argentina |url=https://www.academia.edu/83702584 |journal=Revista Brasileira de Paleontologia |volume=14 |issue=1 |pages=51–60|doi=10.4072/rbp.2011.1.05 |doi-access=free }} |Indeterminate |Yacimiento Narambuena |Partial skeleton (MAU-PV-N-280) |Subadult specimen showing both derived and primitive traits | |- |[Peirosauridae](/source/Peirosauridae) indet.{{Cite journal |last1=Filippi |first1=Leonardo Sebastián |last2=Cerda |first2=Ignacio Alejandro |last3=Garrido |first3=Alberto Carlos |date=February 2013 |title=Morfología e Histología de Osteodermos de Un Peirosauridae De La Cuenca Neuquina |url=https://www.researchgate.net/publication/259569701 |journal=Ameghiniana |language=en |volume=50 |issue=1 |pages=3–13 |doi=10.5710/AMGH.8.6.2012.430 |issn=0002-7014|hdl=11336/79259 |hdl-access=free }} |Indeterminate |Puesto Hernández |Partial skeleton (MAU-Pv-PH-437) |A [peirosaurid](/source/peirosaurid) | |- |} ===Dinosaurs=== ====Ornithischians==== A footprint track of an [ornithopod](/source/ornithopod) is known from the Middle Loma de la Lata site.{{Cite journal |last1=Calvo |first1=Jorge O. |last2=Rivera |first2=Cynthia |last3=Avila |first3=Laura |date=2021-10-01 |title=An overview of Upper Cretaceous dinosaur tracks and other trace fossils from the Barreales lake area, Neuquén Province, Patagonia, Argentina |url=https://linkinghub.elsevier.com/retrieve/pii/S0895981121002224 |journal=Journal of South American Earth Sciences |volume=110 |article-number=103375 |doi=10.1016/j.jsames.2021.103375 |bibcode=2021JSAES.11003375C |issn=0895-9811|url-access=subscription }} {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''[Ornithischia](/source/Ornithischia)ns reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- | rowspan="2" |[Ornithopoda](/source/Ornithopoda) indet.{{Cite journal |last1=Cruzado-Caballero |first1=Penélope |last2=Filippi |first2=Leonardo S. |last3=Méndez |first3=Ariel H. |last4=Garrido |first4=Alberto C. |last5=Juárez Valieri |first5=Rubén D. |date=2016-04-01 |title=New record of ornithopod dinosaur from the Plottier Formation (Upper Cretaceous), Patagonia, Argentina |url=https://linkinghub.elsevier.com/retrieve/pii/S0753396916300064 |journal=Annales de Paléontologie |volume=102 |issue=2 |pages=145–150 |doi=10.1016/j.annpal.2016.02.003 |bibcode=2016AnPal.102..145C |issn=0753-3969|hdl=11336/62352 |hdl-access=free }} |Indeterminate |El Anfiteatro |A pedal [ungual phalanx](/source/ungual_phalanx) (MPCA-AT 261) |An [ornithopod](/source/ornithopod) roughly the size of ''[Notohypsilophodon](/source/Notohypsilophodon)'' | |- |Indeterminate |Puesto Hernández quarry |Partial dorsal [neural arch](/source/neural_arch) (MAU-Pv-PH-458) |An ornithopod similar to ''[Macrogryphosaurus](/source/Macrogryphosaurus)'', estimated to be 6 meters long |center|150 px |- |} ====Sauropods==== 12 footprint tracks of a sauropod are known from the site of Proyecto Dino. {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''[Sauropod](/source/Sauropod)s reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |[Aeolosaurini](/source/Aeolosaurini) indet.{{Cite journal |last=Martinelli |first=Agustin |date=2013-01-01 |title=Registro de un dinosaurio Aeolosaurini (Sauropoda, Titanosauria) en el Cretácico Superior (Formación Anacleto) del norte de la provincia de Neuquén, Argentina, y comentarios sobre aeolosaurinos sudamericanos |url=https://www.academia.edu/4937919 |journal=Revista Brasileira de Paleontologia 16(1): 147-156}} |Indeterminate |Yacimiento Narambuena |Four articulated [caudal vertebrae](/source/caudal_vertebrae) (MAU-Pv-N-414) |A [titanosaur](/source/titanosaur) | |- |''[Antarctosaurus](/source/Antarctosaurus)''{{Cite journal |last1=Otero |first1=Alejandro |last2=Reguero |first2=Marcelo |date=2023-03-06 |title=Dinosaurs (Reptilia, Archosauria) at Museo de La Plata, Argentina: annotated catalogue of the type material and Antarctic specimens |url=https://palaeo-electronica.org/content/2013-technical/410-museo-de-la-plata-catalogue |journal=Palaeontologia Electronica |volume=16 |issue=1 |pages=1–24 |doi=10.26879/352 |issn=1094-8074|hdl=11336/13790 |hdl-access=free }} |''A. giganteus'' |Aguada del Caño |Partial skeleton (MLP 26-316) |A [titanosaur](/source/titanosaur) | |- |''[Muyelensaurus](/source/Muyelensaurus)''{{Cite journal |last=Porfiri |first=Juan |date=2000-01-01 |title=A New Titanosaur Sauropod from the Late Cretaceous of Neuquén, Patagonia, Argentina |url=https://www.academia.edu/59692568 |journal=Arquivos do Museu Nacional, Rio de Janeiro |volume=65 |issue=4 |pages=485–504}}{{Cite journal |last1=Bellardini |first1=Flavio |last2=Baiano |first2=Mattia A. |last3=Barrios |first3=Francisco |last4=Holgado |first4=Borja |last5=Coria |first5=Rodolfo A. |date=January 2018 |title=New Titanosauria (Dinosauria, Sauropoda) remains from the Upper Cretaceous (Plottier Fm) of the southern Neuquén Basin (Patagonia, Argentina) |url=https://www.researchgate.net/publication/322804790 |journal=Journal of Iberian Geology |language=en |volume=44 |issue=1 |pages=75–84 |doi=10.1007/s41513-018-0047-5 |bibcode=2018JIbG...44...75B |issn=1698-6180|hdl=11336/83306 |hdl-access=free }} |''M. pecheni'' |Loma del Lindero |Partial skeleton & additional vertebrae |A [titanosaur](/source/titanosaur), specimens originally thought to be from the [Portezuelo Formation](/source/Portezuelo_Formation) | |- |''[Notocolossus](/source/Notocolossus)''{{Cite journal |last1=González Riga |first1=Bernardo J. |last2=Lamanna |first2=Matthew C. |last3=Ortiz David |first3=Leonardo D. |last4=Calvo |first4=Jorge O. |last5=Coria |first5=Juan P. |date=2016-01-18 |title=A gigantic new dinosaur from Argentina and the evolution of the sauropod hind foot |journal=Scientific Reports |language=en |volume=6 |issue=1 |article-number=19165 |doi=10.1038/srep19165 |issn=2045-2322 |pmc=4725985 |pmid=26777391|bibcode=2016NatSR...619165G }}{{Cite journal |last=Previtera |first=Elena |date=2019-05-31 |title=Taphonomic analysis of saurischian dinosaurs from the Plottier Formation (Upper Cretaceous), Mendoza, Argentina |url=https://www.researchgate.net/publication/333657838 |journal=Andean Geology |volume=46 |issue=2 |page=345 |doi=10.5027/andgeoV46n2-3161 |issn=0718-7106|hdl=11336/120760 |hdl-access=free }} |''N. gonzalezparejasi'' |Cerro Guillermo |Two partial skeletons (UNCUYO-LD 301 & UNCUYO-LD 302) |A [titanosaur](/source/titanosaur) |center|150 px |- |''[Petrobrasaurus](/source/Petrobrasaurus)''{{Cite journal |last1=Filippi |first1=L. S. |last2=Canudo |first2=J. I. |last3=Salgado |first3=J. L. |last4=Garrido |first4=A. |last5=García |first5=R. |last6=Cerda |first6=I. A. |last7=Otero |first7=A. |date=2011-05-06 |title=A new sauropod titanosaur from the Plottier Formation (Upper Cretaceous) of Patagonia (Argentina) |url=https://www.researchgate.net/publication/235586462 |journal=Geologica Acta |language=ca |volume=9 |issue=1 |pages=1–12 |doi=10.1344/105.000001648 |doi-broken-date=12 July 2025 |issn=1696-5728|hdl=11336/105475 |hdl-access=free }} |''P. puestohernandezi'' |Rincón de los Sauces |Partial skeleton |A [titanosaur](/source/titanosaur) |center|200px |- | rowspan="2" |[Sauropoda](/source/Sauropoda) indet. |Indeterminate |5 kilometers north of [Plottier](/source/Plottier) |Partial right [tibia](/source/tibia) (MCF-PVPH-899) |A sauropod | |- |Indeterminate |Cerro Guillermo |Incomplete skeleton (IANIGLA-PV.113) |A sauropod | |- | rowspan="2" |[Titanosauria](/source/Titanosauria) indet. |Indeterminate |El Anfiteatro |Incomplete dorsal vertebra (MPCA-AT 024) |A large [titanosaur](/source/titanosaur) | |- |Indeterminate |5 kilometers north of [Plottier](/source/Plottier) | *Left [femur](/source/femur) and partial ribs (MCF-PVPH-889) *Right [fibula](/source/fibula) (MCF-PVPH-900) |Remains of [titanosaurs](/source/titanosaurs) | |- |} ====Theropods==== {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''[Theropod](/source/Theropod)s reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- | rowspan="2" |[Abelisauridae](/source/Abelisauridae) indet.{{Cite journal |last1=Hendrickx |first1=Christophe |last2=Tschopp |first2=Emanuel |last3=Ezcurra |first3=Martín d. |date=2020-04-01 |title=Taxonomic identification of isolated theropod teeth: The case of the shed tooth crown associated with Aerosteon (Theropoda: Megaraptora) and the dentition of Abelisauridae |url=https://linkinghub.elsevier.com/retrieve/pii/S0195667118303860 |journal=Cretaceous Research |volume=108 |article-number=104312 |doi=10.1016/j.cretres.2019.104312 |bibcode=2020CrRes.10804312H |issn=0195-6671|url-access=subscription |hdl=11336/142117 |hdl-access=free }}{{Cite journal |last1=Meso |first1=J. G. |last2=Juárez Valieri |first2=R. D. |last3=Porfiri |first3=J. D. |last4=Correa |first4=S. A. S. |last5=Martinelli |first5=A. G. |last6=Casal |first6=G. A. |last7=Canudo |first7=J. I. |last8=Poblete |first8=F. |last9=Dos Santos |first9=D. |date=2021-09-01 |title=Testing the persistence of Carcharodontosauridae (Theropoda) in the Upper Cretaceous of Patagonia based on dental evidence |url=https://linkinghub.elsevier.com/retrieve/pii/S0195667121001221 |journal=Cretaceous Research |volume=125 |article-number=104875 |doi=10.1016/j.cretres.2021.104875 |bibcode=2021CrRes.12504875M |hdl=11336/183886 |issn=0195-6671|hdl-access=free }} |Indeterminate |Cañadon Amarillo |Tooth |An [abelisaur](/source/abelisaur) tooth formerly thought to be part of the [holotype](/source/holotype) specimen of ''[Aerosteon](/source/Aerosteon)'' | |- |Indeterminate |El Anfiteatro |Tooth (Endemas-PV 16) |An [abelisaur](/source/abelisaur), tooth originally reported as that of a [carcharodontosaurid](/source/carcharodontosaurid) in 2009 but reclassified in 2021 | |- |[Alvarezsauria](/source/Alvarezsauria) indet.{{Cite journal |last1=Gianechini |first1=F. A. |last2=Meso |first2=J. G. |last3=Méndez |first3=A. H. |last4=Garrido |first4=A. C. |last5=Filippi |first5=L. S. |date=2024-10-16 |title=A new maniraptoran femur with alvarezsaurian affinities from the Plottier Formation (Coniacian-Santonian), northern Patagonia |url=https://www.tandfonline.com/doi/full/10.1080/08912963.2024.2414206 |journal=Historical Biology |language=en |pages=1–11 |doi=10.1080/08912963.2024.2414206 |issn=0891-2963|url-access=subscription }} |Indeterminate |Rincón de los Sauces |Right [femur](/source/femur) (MAU-Pv-PH-453) |An [alvarezsaur](/source/alvarezsaur) | |- |[Brachyrostra](/source/Brachyrostra) indet.{{Cite journal |last1=Méndez |first1=Ariel H. |last2=Gianechini |first2=Federico A. |last3=Paulina-Carabajal |first3=Ariana |last4=Filippi |first4=Leonardo S. |last5=Juárez-Valieri |first5=Rubén D. |last6=Cerda |first6=Ignacio A. |last7=Garrido |first7=Alberto C. |date=2022-01-01 |title=New furileusaurian remains from La Invernada (northern Patagonia, Argentina): A site of unusual abelisaurids abundance |url=https://linkinghub.elsevier.com/retrieve/pii/S0195667121002378 |journal=Cretaceous Research |volume=129 |article-number=104989 |doi=10.1016/j.cretres.2021.104989 |bibcode=2022CrRes.12904989M |issn=0195-6671|url-access=subscription }} |Indeterminate |Loma del Lindero |Vertebrae, teeth and possible sacrum (MAU-Pv-LL-75) |An [abelisaur](/source/abelisaur) | |- |[Coelurosauria](/source/Coelurosauria) indet. |Indeterminate |El Anfiteatro |Two teeth (MPCA-AT 263 & 269) |A [coelurosaur](/source/coelurosaur) | |- |[Maniraptoriformes](/source/Maniraptoriformes) indet. cf. [Unenlagiinae](/source/Unenlagiinae) |Indeterminate |El Anfiteatro |Tooth (Endemas-PV 15) |Possible [unenlagiine](/source/unenlagiine) tooth, though more material is needed to confirm this | |- |[Theropoda](/source/Theropoda) indet. |Indeterminate |El Anfiteatro |Incomplete [caudal vertebra](/source/caudal_vertebra) (MPCA-AT 082) |A "moderately sized" theropod | |- |} ===Pterosaurs=== {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''[Pterosaur](/source/Pterosaur)s reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |''[Thanatosdrakon](/source/Thanatosdrakon)''{{Cite journal |last1=Ortiz David |first1=Leonardo D. |last2=González Riga |first2=Bernardo J. |last3=Kellner |first3=Alexander W. A. |date=2022-09-01 |title=Thanatosdrakon amaru, gen. et sp. nov., a giant azhdarchid pterosaur from the Upper Cretaceous of Argentina |url=https://linkinghub.elsevier.com/retrieve/pii/S0195667122000921 |journal=Cretaceous Research |volume=137 |article-number=105228 |doi=10.1016/j.cretres.2022.105228 |bibcode=2022CrRes.13705228O |issn=0195-6671|url-access=subscription }} |''T. amaru'' |Agua del Padrillo | *Partial skeleton (UNCUYO-LD 307) *Left humerus (UNCUYO-LD 350) |An [azhdarchid](/source/azhdarchid) |center|150 px |- |} ===Turtles=== {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''[Turtle](/source/Turtle)s reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |[Chelidae](/source/Chelidae)? indet. |Indeterminate |El Anfiteatro |Plastron plate (MPCA-AT 089) |A [chelid](/source/chelid) | |- |''[Linderochelys](/source/Linderochelys)''{{Cite journal |last1=Jannello |first1=J. M. |last2=Maniel |first2=I. J. |last3=Previtera |first3=E. |last4=de la Fuente |first4=M. S. |date=2018-03-01 |title=''Linderochelys rinconensis'' (Testudines: Pan-Chelidae) from the Upper Cretaceous of northern Patagonia: New insights from shell bone histology, morphology and diagenetic implications |url=https://linkinghub.elsevier.com/retrieve/pii/S0195667117300848 |journal=Cretaceous Research |series=New Insights on the Vertebrate Paleontology of the Neuquén Group, Patagonia, Argentina |volume=83 |pages=47–61 |doi=10.1016/j.cretres.2017.05.011 |bibcode=2018CrRes..83...47J |hdl=11336/59673 |issn=0195-6671|hdl-access=free |url-access=subscription }} |''L. rinconensis'' |Loma de Lindero |Partial skeleton (MAU-PV-LL-69) |A [chelid](/source/chelid), locality originally assigned to the [Rio Neuquén Subgroup](/source/Rio_Neuqu%C3%A9n_Subgroup) with no specific formation. | |- |''[Rionegrochelys](/source/Rionegrochelys)''{{Cite journal |last1=de la Fuente |first1=Marcelo |last2=Maniel |first2=Ignacio |last3=Jannello |first3=Juan |last4=Sterli |first4=Juliana |last5=Garrido |first5=Alberto |last6=García |first6=Rodolfo |last7=Salgado |first7=Leonardo |last8=Canudo |first8=Jose |last9=Bolatti |first9=Raúl |date=2017 |title=Unusual shell anatomy and osteohistology in a new Late Cretaceous panchelid turtle from northwestern Patagonia, Argentina |url=https://www.researchgate.net/publication/318244888 |journal=Acta Palaeontologica Polonica |volume=62 |doi=10.4202/app.00340.2017 |s2cid=44121053|hdl=11336/40932 |hdl-access=free }} |''R. caldieroi'' |El Anfiteatro |Shell elements |A [chelid](/source/chelid), type specimen first reported as an indeterminate chelid in 2009 |center|150 px |- |} === Ichnofossils === * ''[Scoyenia sp.](/source/Scoyenia)'' * ''[Taenidium sp.](/source/Taenidium)'' There are also [ichnofossil](/source/ichnofossil)s left on the river's mudflats, as well as fossil [freshwater](/source/freshwater) [bivalve](/source/bivalve)s. === Ostracods === {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''[Ostracod](/source/Ostracod)s reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |[Cypridoidea](/source/Cypridoidea) indet.{{Cite book |last1=Díaz Martínez |first1=Enrique |title=4th european meeting on the palaeontology and stratigraphy of Latin America |last2=Rábano |first2=Isabel |date=2007 |publisher=Instituto geológico y minero de España |others=European meeting on the palaeontology and stratigraphy of Latin America |isbn=978-84-7840-707-1 |series=Cuadernos del Museo Geominero |location=Madrid |pages=273–278 |chapter=Late Cretaceous non marine microfossils of the Plottier Formation (Cretaceous) at Zampal, Argentina |chapter-url=https://www.researchgate.net/publication/267692115}} |Indeterminate |Zampal |A few specimens |A [cypridoid](/source/Cypridoidea) | |- | rowspan="3" |''[Ilyocypris](/source/Ilyocypris)'' |''I. aff. bauruensis'' |Zampal |A few [molt](/source/molt)s |An [ilyocypridid](/source/Ilyocyprididae) | |- |''I. cf. riograndensis'' |Zampal | |An [ilyocypridid](/source/Ilyocyprididae) | |- |''I. wichmanni'' |Zampal | |An [ilyocypridid](/source/Ilyocyprididae) | |- | rowspan="2" |''[Neocyprideis](/source/Neocyprideis)''{{Cite journal |last1=Kihn |first1=R. G. |last2=Calvo |first2=J. O. |date=2001-01-01 |title=Ostracods and paleoambiental inferences in the Plottier Formation (Coniancian - Upper Cretaceous) of the Barreales Lake, Neuquén |url=https://www.researchgate.net/publication/358003987 |journal=Munis Entomology & Zoology |language=en |volume=17 |issue=1 |pages=434–442 |issn=1306-3022}} |''N.? sp.'' |Zampal | |An [ilyocypridid](/source/Ilyocyprididae) | |- |''N. zampalensis'' |Babilonia |4 valves |An [ilyocypridid](/source/Ilyocyprididae) | |- | rowspan="4" |''[Neuquenocypris](/source/Neuquenocypris)'' |''N. calfucurensis'' |Babilonia |3 valve fragments |An [ilyocypridid](/source/Ilyocyprididae) | |- |''N. cf. minor'' |Zampal | |An [ilyocypridid](/source/Ilyocyprididae) | |- |''N. nahuelniyuensis'' |Babilonia |6 valves |An [ilyocypridid](/source/Ilyocyprididae) | |- |''N. tenuipunctata'' |Babilonia |5 adult and 3 juvenile valves |An [ilyocypridid](/source/Ilyocyprididae) | |- |''[Paralimnocythere](/source/Paralimnocythere)'' |''P.? sp.'' |Zampal |Several [carapace](/source/carapace)s and valves |A [limnocytherid](/source/Limnocytheridae) | |- |[Talicyprideinae](/source/Talicyprideinae) sp. |Indeterminate |Zampal |Very scarce number of carapaces |An [ilyocypridid](/source/Ilyocyprididae) | |- |''[Vecticypris](/source/Vecticypris)'' |''V. sp.'' |Babilonia |2 valves |A [limnocytherid](/source/Limnocytheridae) | |- |''[Wolburgiopsis](/source/Wolburgiopsis)'' |''W. cf. neocretacea'' |Zampal | |A [limnocytherid](/source/Limnocytheridae) | |} ===Plants=== {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''[Plant](/source/Plant)s reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |[Angiospermae](/source/Angiospermae)? indet. |Indeterminate |Zampal |A few seeds |A possible [angiosperm](/source/angiosperm) | |- |''[Henrisporites](/source/Henrisporites)'' |''H. sp.'' |Zampal |Abundant [megaspore](/source/megaspore)s |A [lycopod](/source/lycopod) | |- |''[Lychnothamnus](/source/Lychnothamnus)'' |''L. barbosai'' |Zampal |Over 400 [microfossils](/source/microfossils) |A [stonewort](/source/stonewort) | |- |''[Nitella](/source/Nitella)'' |''N. sp.'' |Zampal |21 microfossils |A [stonewort](/source/stonewort) | |- | rowspan="2" |''[Spermatites](/source/Spermatites)'' |''S. sp. 1'' |Zampal |Seeds |An [angiosperm](/source/angiosperm) | |- |''S. sp. 2'' |Zampal |Seeds |An [angiosperm](/source/angiosperm) | |- |} == See also == * [List of fossil sites](/source/List_of_fossil_sites) * [List of dinosaur bearing rock formations](/source/List_of_dinosaur_bearing_rock_formations) == References == {{Reflist|20em}} === Bibliography === * {{aut|Chiappe, Luis M.}} (1993): Enantiornithine (Aves) Tarsometatarsi from the Cretaceous Lecho Formation of Northwestern Argentina. ''American Museum Novitates'' '''3083''': 1-27. [English with Spanish abstract] [http://digitallibrary.amnh.org/dspace/bitstream/2246/4981/1/N3083.pdf PDF fulltext] * {{aut|Coria, Rodolfo A.; Currie, Philip J.; Eberth, David & Garrido, Alberto}} (2002): Bird footprints from the Anacleto Formation (Late Cretaceous), Neuquén, Argentina. ''Ameghiniana'' '''39'''(4): 453-463. [English with Spanish abstract] [https://web.archive.org/web/20061124234955/http://www.biology.ualberta.ca/faculty/philip_currie/uploads/pdfs/2002/2002Bird_Footprints.PDF PDF fulltext] * {{Cite journal |last1=Fossa Mancini |first1=E. |author2-link=Egidio Feruglio |last2=Feruglio |first2=E. |last3=Yussen de Campana |first3=J.C. |year=1938 |title=Una reunión de geólogos de YPF y el problema de la terminología estratigráfica |language=es |trans-title=A YPF geologists' reunion and the problem of stratigraphy terminology |journal=Boletín de Informaciones Petroleras |volume=15 |pages=1–67}} * {{Cite journal |last1=Leanza |first1=H.A. |last2=Apesteguia |first2=S. |author3-link=Fernando Novas |last3=Novas |first3=F.E. |last4=De la Fuente |first4=M.S. |year=2004 |title=Cretaceous terrestrial beds from the Neuquén Basin (Argentina) and their tetrapod assemblages |url=https://www.researchgate.net/publication/257047651 |journal=[Cretaceous Research](/source/Cretaceous_Research) |volume=25 |issue=1 |pages=61–87 |doi=10.1016/j.cretres.2003.10.005 |bibcode=2004CrRes..25...61L |access-date=2019-02-16}} * {{aut|Lockley, Martin; Matsukawa, Masaki; Ohira, Hiroto; Li, Jianjun; Wright, Joanna; White, Diane & Chen, Peiji}} (2006): Bird tracks from Liaoning Province, China: New insights into avian evolution during the Jurassic-Cretaceous transition. ''Cretaceous Research'' '''27'''(1): 33-43. {{doi|10.1016/j.cretres.2005.10.007}} (HTML abstract). '''Erratum''': {{doi|10.1016/j.cretres.2008.06.002}} * {{aut|Salgado, L.; Coria, R.A. & Chiappe, Luis M.}} (2005): Osteology of the sauropod embryos from the Upper Cretaceous of Patagonia. ''Acta Palaeontologica Polonica'' '''50'''(1): 79–92. [http://www.app.pan.pl/archive/published/app50/app50-079.pdf PDF fulltext] * {{Cite journal |last1=Sánchez |first1=María Lidia |last2=Heredia |first2=Susana |last3=Calvo |first3=Jorge O. |year=2006 |title=Paleoambientes sedimentarios del Cretácico Superior de la Formación Plottier (Grupo Neuquén), Departamento Confluencia, Neuquén |language=es |trans-title=Sedimentary paleoenvironments in the Upper Cretaceous Plottier Formation (Neuquen Group), Confluencia, Neuquén |url=https://www.researchgate.net/publication/262615949 |journal=[Revista de la Asociación Geológica Argentina](/source/Revista_de_la_Asociaci%C3%B3n_Geol%C3%B3gica_Argentina) |volume=61 |pages=3–18 |access-date=2019-02-16}} Category:Geologic formations of Argentina Category:Neuquén Group Category:Upper Cretaceous Series of South America Category:Cretaceous Argentina Category:Coniacian Stage Category:Shale formations Category:Sandstone formations Category:Alluvial deposits Category:Fluvial deposits Category:Fossiliferous stratigraphic units of South America Category:Paleontology in Argentina Category:Geology of Neuquén Province Category:Geology of Río Negro Province --- Adapted from the Wikipedia article [Plottier Formation](https://en.wikipedia.org/wiki/Plottier_Formation) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Plottier_Formation?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.