{{Short description|Geologic formation in Argentina}} {{Infobox rockunit | name = Plottier Formation | image = | caption = | type = Geological formation | period = Coniacian | age = late Coniacian-early Santonian<br />~{{fossil range|86|85}} | prilithology = Claystone | otherlithology = Sandstone | namedfor = Plottier | namedby = Fossa Mancini ''et al.'' | year_ts = 1938 | region = Mendoza, Neuquén & Río Negro Provinces | 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<br /> Río Neuquén Subgroup | subunits = | underlies = Río Colorado Subgroup<br /> Bajo de la Carpa Formation | overlies = Sierra Barrosa Formation | thickness = Up to {{convert|25|m|ft|abbr=on}} | extent = Neuquén 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 that outcrops in the Argentine Patagonian provinces of Río Negro and Neuquén. It is the younger of two formations belonging to the Río Neuquén Subgroup within the Neuquén Group of the Neuquén Basin, with the oldest rocks dating from the late Coniacian and its youngest maybe from the very start of the Santonian. Formerly, that subgroup was treated as a formation, and the Plottier Formation was known as the '''Plottier Member'''.<ref name="Sanchez etal 2006">Sánchez ''et al.'', 2006</ref>
== Description == A section near the Neuquén City airport, north of the town of Plottier, is the type locality of the Plottier Formation.<ref>Fossa Mancini ''et al.'', 1938</ref> At its base, this formation grades into the Portezuelo Formation, and it is in turn overlain conformably by the 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 primarily by its higher content of argillites (mud deposits) and was deposited under fluvial conditions. In 2006, a detailed lithostratigraphic and paleoecological study of a section of the Plottier Formation was published. This section contained alluvial deposits laid down by what was essentially a low-gradient wandering river throughout the millions of years, but often was of a single-channel type with little meandering.<ref name="Leanza etal 2004">Leanza ''et al.'', 2004</ref><ref name="Sanchez etal 2006" />
==Fossil content== {{Paleobiota-key-compact}}
Few animal fossils are known from this formation, including:<ref>[https://paleobiodb.org/classic/displayCollResults?geological_group=Neuqu%E9n&formation=Plottier Plottier Formation] at Fossilworks.org</ref> ===Crocodyliformes=== {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''Crocodyliformes reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |Crocodyliformes indet.<ref name=":0">{{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 }}</ref> |Indeterminate |El Anfiteatro | *Seven osteoderms (MPCA-AT 251–257) *Right dentary fragment (MPCA-AT 75) |Resembles peirosaurids such as ''Peirosaurus'' and ''Uberabasuchus'' | |- |''Lomasuchus''<ref>{{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}}</ref><ref name="PG7">{{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 }}</ref> |''L. palpebrosus'' |Embalse Cerros Colorados |Skull and partial mandibular ramus |A peirosaurid, specimen originally claimed to originate from the Rio Colorado formation. | |- |Mesoeucrocodylia indet.<ref>{{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 }}</ref> |Indeterminate |Yacimiento Narambuena |Partial skeleton (MAU-PV-N-280) |Subadult specimen showing both derived and primitive traits | |- |Peirosauridae indet.<ref>{{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 }}</ref> |Indeterminate |Puesto Hernández |Partial skeleton (MAU-Pv-PH-437) |A peirosaurid | |- |}
===Dinosaurs=== ====Ornithischians==== A footprint track of an ornithopod is known from the Middle Loma de la Lata site.<ref name=":6">{{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 }}</ref> {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''Ornithischians reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- | rowspan="2" |Ornithopoda indet.<ref name=":0" /><ref>{{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 }}</ref> |Indeterminate |El Anfiteatro |A pedal ungual phalanx (MPCA-AT 261) |An ornithopod roughly the size of ''Notohypsilophodon'' | |- |Indeterminate |Puesto Hernández quarry |Partial dorsal neural arch (MAU-Pv-PH-458) |An ornithopod similar to ''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.<ref name=":6" /> {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''Sauropods reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |Aeolosaurini indet.<ref>{{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}}</ref> |Indeterminate |Yacimiento Narambuena |Four articulated caudal vertebrae (MAU-Pv-N-414) |A titanosaur | |- |''Antarctosaurus''<ref>{{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 }}</ref> |''A. giganteus'' |Aguada del Caño |Partial skeleton (MLP 26-316) |A titanosaur | |- |''Muyelensaurus''<ref>{{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}}</ref><ref name=":1">{{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 }}</ref> |''M. pecheni'' |Loma del Lindero |Partial skeleton & additional vertebrae |A titanosaur, specimens originally thought to be from the Portezuelo Formation | |- |''Notocolossus''<ref>{{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 }}</ref><ref name=":3">{{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 }}</ref> |''N. gonzalezparejasi'' |Cerro Guillermo |Two partial skeletons (UNCUYO-LD 301 & UNCUYO-LD 302) |A titanosaur |center|150 px |- |''Petrobrasaurus''<ref>{{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 }}</ref> |''P. puestohernandezi'' |Rincón de los Sauces |Partial skeleton |A titanosaur |center|200px |- | rowspan="2" |Sauropoda indet.<ref name=":1" /><ref name=":3" /> |Indeterminate |5 kilometers north of Plottier |Partial right tibia (MCF-PVPH-899) |A sauropod | |- |Indeterminate |Cerro Guillermo |Incomplete skeleton (IANIGLA-PV.113) |A sauropod | |- | rowspan="2" |Titanosauria indet.<ref name=":0" /><ref name=":1" /> |Indeterminate |El Anfiteatro |Incomplete dorsal vertebra (MPCA-AT 024) |A large titanosaur | |- |Indeterminate |5 kilometers north of Plottier | *Left femur and partial ribs (MCF-PVPH-889) *Right fibula (MCF-PVPH-900) |Remains of titanosaurs | |- |}
====Theropods==== {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''Theropods reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- | rowspan="2" |Abelisauridae indet.<ref name=":0" /><ref>{{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 }}</ref><ref name=":2">{{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 }}</ref> |Indeterminate |Cañadon Amarillo |Tooth |An abelisaur tooth formerly thought to be part of the holotype specimen of ''Aerosteon'' | |- |Indeterminate |El Anfiteatro |Tooth (Endemas-PV 16) |An abelisaur, tooth originally reported as that of a carcharodontosaurid in 2009 but reclassified in 2021 | |- |Alvarezsauria indet.<ref>{{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 }}</ref> |Indeterminate |Rincón de los Sauces |Right femur (MAU-Pv-PH-453) |An alvarezsaur | |- |Brachyrostra indet.<ref>{{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 }}</ref> |Indeterminate |Loma del Lindero |Vertebrae, teeth and possible sacrum (MAU-Pv-LL-75) |An abelisaur | |- |Coelurosauria indet.<ref name=":0" /> |Indeterminate |El Anfiteatro |Two teeth (MPCA-AT 263 & 269) |A coelurosaur | |- |Maniraptoriformes indet. cf. Unenlagiinae<ref name=":0" /> |Indeterminate |El Anfiteatro |Tooth (Endemas-PV 15) |Possible unenlagiine tooth, though more material is needed to confirm this | |- |Theropoda indet.<ref name=":0" /> |Indeterminate |El Anfiteatro |Incomplete caudal vertebra (MPCA-AT 082) |A "moderately sized" theropod | |- |}
===Pterosaurs=== {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''Pterosaurs reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |''Thanatosdrakon''<ref>{{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 }}</ref> |''T. amaru'' |Agua del Padrillo | *Partial skeleton (UNCUYO-LD 307) *Left humerus (UNCUYO-LD 350) |An azhdarchid |center|150 px |- |}
===Turtles=== {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''Turtles reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |Chelidae? indet.<ref name=":0" /> |Indeterminate |El Anfiteatro |Plastron plate (MPCA-AT 089) |A chelid | |- |''Linderochelys''<ref>{{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 }}</ref> |''L. rinconensis'' |Loma de Lindero |Partial skeleton (MAU-PV-LL-69) |A chelid, locality originally assigned to the Rio Neuquén Subgroup with no specific formation. | |- |''Rionegrochelys''<ref name=":0" /><ref>{{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 }}</ref> |''R. caldieroi'' |El Anfiteatro |Shell elements |A chelid, type specimen first reported as an indeterminate chelid in 2009 |center|150 px |- |}
=== Ichnofossils === * ''Scoyenia sp.'' * ''Taenidium sp.'' There are also ichnofossils left on the river's mudflats, as well as fossil freshwater bivalves.<ref name="Sanchez etal 2006" />
=== Ostracods === {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''Ostracods reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |Cypridoidea indet.<ref name=":5">{{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}}</ref> |Indeterminate |Zampal |A few specimens |A cypridoid | |- | rowspan="3" |''Ilyocypris''<ref name=":5" /> |''I. aff. bauruensis'' |Zampal |A few molts |An ilyocypridid | |- |''I. cf. riograndensis'' |Zampal | |An ilyocypridid | |- |''I. wichmanni'' |Zampal | |An ilyocypridid | |- | rowspan="2" |''Neocyprideis''<ref name=":5" /><ref name=":4">{{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}}</ref> |''N.? sp.'' |Zampal | |An ilyocypridid | |- |''N. zampalensis'' |Babilonia |4 valves |An ilyocypridid | |- | rowspan="4" |''Neuquenocypris''<ref name=":5" /><ref name=":4" /> |''N. calfucurensis'' |Babilonia |3 valve fragments |An ilyocypridid | |- |''N. cf. minor'' |Zampal | |An ilyocypridid | |- |''N. nahuelniyuensis'' |Babilonia |6 valves |An ilyocypridid | |- |''N. tenuipunctata'' |Babilonia |5 adult and 3 juvenile valves |An ilyocypridid | |- |''Paralimnocythere''<ref name=":5" /> |''P.? sp.'' |Zampal |Several carapaces and valves |A limnocytherid | |- |Talicyprideinae sp.<ref name=":5" /> |Indeterminate |Zampal |Very scarce number of carapaces |An ilyocypridid | |- |''Vecticypris''<ref name=":4" /> |''V. sp.'' |Babilonia |2 valves |A limnocytherid | |- |''Wolburgiopsis''<ref name=":5" /> |''W. cf. neocretacea'' |Zampal | |A limnocytherid | |}
===Plants=== {| class="wikitable" align="center" |- ! colspan="6" align="center" | '''Plants reported from the Plottier Formation''' |- ! Genus !! Species !! Presence !'''Material'''!! Notes !! Images |- |Angiospermae? indet.<ref name=":5" /> |Indeterminate |Zampal |A few seeds |A possible angiosperm | |- |''Henrisporites''<ref name=":5" /> |''H. sp.'' |Zampal |Abundant megaspores |A lycopod | |- |''Lychnothamnus''<ref name=":5" /> |''L. barbosai'' |Zampal |Over 400 microfossils |A stonewort | |- |''Nitella''<ref name=":5" /> |''N. sp.'' |Zampal |21 microfossils |A stonewort | |- | rowspan="2" |''Spermatites''<ref name=":5" /> |''S. sp. 1'' |Zampal |Seeds |An angiosperm | |- |''S. sp. 2'' |Zampal |Seeds |An angiosperm | |- |}
== See also == * List of fossil sites * 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 |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. <small>{{doi|10.1016/j.cretres.2005.10.007}}</small> (HTML abstract). '''Erratum''': <small>{{doi|10.1016/j.cretres.2008.06.002}}</small> * {{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 |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