# Dolerosaurus

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Extinct genus of reptiles

Dolerosaurus Temporal range: Late Triassic, 231–228 Ma PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Romeriida Clade: Diapsida Genus: †Dolerosaurus Butler, 2013 Type species †Francosuchus trauthi Huene, 1939

***Dolerosaurus*** is an [extinct](/source/Extinct) [genus](/source/Genus) of [diapsid](/source/Diapsid) known from the early [Late Triassic](/source/Late_Triassic) (late [Carnian](/source/Carnian) stage) upper [Lunz Formation](/source/Lunz_Formation) of [Austria](/source/Austria). *Dolerosaurus* was first named by [Richard J. Butler](/source/Richard_J._Butler) in [2013](/source/2013_in_paleontology) and the [type species](/source/Type_species) is *[Francosuchus](/source/Francosuchus) trauthi*.[1]

## Discovery and naming

In 1939 Friedrich von Huene named a new species of the [phytosaur](/source/Phytosaur) *[Francosuchus](/source/Francosuchus)*, *F. trauthi*, based upon a small fragment of rostrum.[2] It was at some point later referred to *[Paleorhinus](/source/Paleorhinus)*, but in 2013, it was renamed to the new genus *Dolerosaurus*.[1] Unfortunately very little can be said about *Dolerosaurus* given that its holotype fossil is so small (c.5 centimetres (2.0 in) long) and the known remains are so scant. *Dolerosaurus* was referred to [Phytosauria](/source/Phytosauria) in 1939, but after subsequent analyses in 2013, it was reclassified as a basal [diapsid](/source/Diapsid).

## References

1. ^ [***a***](#cite_ref-Dolerosaurus_1-0) [***b***](#cite_ref-Dolerosaurus_1-1) Butler, R. J. (2013). "'*Francosuchus trauthi* is not *Paleorhinus*: Implications for Late Triassic vertebrate biostratigraphy". *Journal of Vertebrate Paleontology*. **33** (4): 858–864. [doi](/source/Doi_(identifier)):[10.1080/02724634.2013.740542](https://doi.org/10.1080%2F02724634.2013.740542). [S2CID](/source/S2CID_(identifier)) [86386615](https://api.semanticscholar.org/CorpusID:86386615).

1. **[^](#cite_ref-2)** Ein primitiver Phytosaurier in der jüngeren nordost-alpinen Trias. - Zentralblatt für Mineralogie, Geologie und Paläontologie, Abteilung B 1939:139-144. - Friedrich von Huene - 1939.

v t e Sauropsida (Reptilia sensu lato) Kingdom: Animalia Phylum: Chordata Superclass: Tetrapoda Clade: Amniota Tetrapodomorpha see Tetrapodomorpha Reptiliomorpha see Reptiliomorpha Sauropsida see below↓ Sauropsida Sauropsida †Eunotosaurus? †Australothyris †Erpetonyx †Microleter †Mesosaurus †Acleistorhinidae Acleistorhinus Carbonodraco ？ Colobomycter Delorhynchus Feeserpeton Karutia Klastomycter †Colognathidae Colognathus Quasicolognathus †Bolosauridae Belebey Bolosaurus Eudibamus †Millerettidae? Broomia Eunotosaurus? Heleophilus? Lanthanolania? Milleretta Millerosaurus Milleropsis Nanomilleretta †Procolophonia see Procolophonia Diapsida see below↓ Diapsida Diapsida †Adelosaurus? †Ascendonanus? †Cabarzia? †Claudiosaurus †Cryptovaranoides †Dolerosaurus †Elachistosuchus †Eunotosaurus? †Feralisaurus †Galesphyrus †Heleosuchus †Kudnu †Lanthanolania? †Maiothisavros †Microzemiotes †Orovenator? †Palacrodon †Palaeagama †Saurosternon †Sphodrosaurus †Younginidae Akkedops Scyllacerta Youngina †Tangasauridae Acerosodontosaurus Hovasaurus Kenyasaurus Tangasaurus Thadeosaurus †Weigeltisauridae Coelurosauravus Glaurung Rautiania Weigeltisaurus †Drepanosauromorpha Ancistronychus Avicranium Dolabrosaurus Drepanosaurus Fabanychus Hypuronector Kyrgyzsaurus Longisquama? Megalancosaurus Mirasaura Protoavis? Skybalonyx Unguinychus Vallesaurus †Kuehneosauridae Icarosaurus Idiosaura? Kuehneosaurus Kuehneosuchus Pamelina Rhabdopelix? †Choristodera see Choristodera †Ichthyosauromorpha see Ichthyosauromorpha †Sauropterygia see Sauropterygia †Thalattosauria see Thalattosauria Sauria (Crown-Reptilia) Lepidosauromorpha see Lepidosauromorpha Includes Lepidosauria includes rhynchocephalians and squamates Archelosauria Archosauromorpha see Archosauromorpha Includes Archosauria includes birds and crocodilians Pantestudines see Pantestudines Includes Testudines turtles See also Possible sauropsids Araeoscelidia Captorhinidae Protorothyrididae Recumbirostra Varanopidae Other taxa Anapsida Captorhinida Eureptilia Parareptilia Lanthanosuchoidea Millerosauria Procolophonomorpha Ankyramorpha Neodiapsida Eosuchia Younginiformes Younginidae Avicephala Eolacertilia Euryapsida

Taxon identifiers Dolerosaurus Wikidata: Q16752372 GBIF: 8666673 Paleobiology Database: 272886

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Adapted from the Wikipedia article [Dolerosaurus](https://en.wikipedia.org/wiki/Dolerosaurus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Dolerosaurus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.