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Rhadinosuchus gracilis

Description

Rhadinosuchus is an extinct genus of proterochampsian archosauriform reptile from the Late Triassic. It is known only from the type species Rhadinosuchus gracilis, reposited in Munich, Germany. The fossil includes an incomplete skull and fragments of post-cranial material. Hosffstetter (1955), Kuhn (1966), Reig (1970) and Bonaparte (1971) hypothesized it to be synonymous with Cerritosaurus, but other characteristics suggest it is closer to Chanaresuchus and Gualosuchus, while it is certainly different from Proterochampsa and Barberenachampsa. The small size indicates it is a young animal, making it hard to classify.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4982196https://www.gbif.org/species/4982196
PaleoBioDB ID (PBDB)100835https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=100835
Rankspecies
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Crocodylia : Proterochampsidae : Rhadinosuchus : Rhadinosuchus gracilis
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Eosuchia : Proterochampsidae : Rhadinosuchus : Rhadinosuchus gracilis
Taxonomic Status (GBIF)accepted
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
-Osteichthyes
-SarcopterygiiRomer 1955
subclassDipnotetrapodomorpha
subclassTetrapodomorpha
-Tetrapoda
-ReptiliomorphaSäve-Söderbergh 1934
-AnthracosauriaSäve-Söderbergh 1934
-Batrachosauria
-Cotylosauria
-AmniotaHaeckel 1866
-SauropsidaHuxley 1864
classReptiliaLaurenti 1768
subclassEureptilia
-RomeriidaGauthier et al. 1988
-Diapsida
-Eosuchia
-NeodiapsidaBenton 1985
-SauriaGauthier 1984
-Archosauromorpha
-CrocopodaEzcurra 2016
-ArchosauriformesGauthier 1986
-EucrocopodaEzcurra 2016
-ProterochampsiaKischlat 2000
familyProterochampsidaeRomer 1966
subfamilyRhadinosuchinaeHofstetter 1955
genusRhadinosuchusHuene 1942
speciesRhadinosuchus gracilisHuene 1942
Generic NameRhadinosuchus
Scientific NameRhadinosuchus gracilis Huene, 1942
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Rhadinosuchus gracilisspeciesbelongs to Rhadinosuchusstated with evidenceHuene, 1942
Status (PBDB)extinct
Taxon Size (PBDB)1
First Recorded Appearance237 - 209 Ma
Late/Upper Triassic
Last Recorded Appearance237 - 209 Ma
Late/Upper Triassic
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)F. v. Huene. 1942. Lieferungen 3/4. Pseudosuchia, Saurischia, Rhynchosauridae und Schlussabschnitt [Parts 3/4. Pseudosuchia, Saurischia, Rhynchosauridae, and Conclusions]. Die Fossilen Reptilien des Südamerikanischen Gondwanalandes. Ergebnisse der Sauriergrabungen in Südbrasilien 1928/29 [The Fossil Reptiles of South American Gondwanaland. Results of the Dinosaur Expeditions in southern Brazil 1928/29]. C. H. Beck'sche Verlagsbuchhandlung, München
Wikipediahttps://en.wikipedia.org/wiki/Rhadinosuchus_gracilis

Fossil Distribution

Synonymy List

YearName and Author
1942Rhadinosuchus gracilis Huene p. 191 figs. Pl. 26:1-2
2013Rhadinosuchus gracilis Trotteyn et al.
2015Rhadinosuchus gracilis Ezcurra et al.
2016Rhadinosuchus gracilis Ezcurra

References

Huene F. v. (1942) Lieferungen 3/4. Pseudosuchia, Saurischia, Rhynchosauridae und Schlussabschnitt [Parts 3/4. Pseudosuchia, Saurischia, Rhynchosauridae, and Conclusions], Die Fossilen Reptilien des Südamerikanischen Gondwanalandes. Ergebnisse der Sauriergrabungen in Südbrasilien 1928/29 [The Fossil Reptiles of South American Gondwanaland. Results of the Dinosaur Expeditions in southern Brazil 1928/29]. C. H. Beck'sche Verlagsbuchhandlung, München, 161-332
Trotteyn M. J., Arcucci A. B., et al (2013) Proterochampsia: an endemic archosauriform clade from South America, Anatomy, Phylogeny and Palaeobiology of Early Archosaurs and their Kin 379
Ezcurra M. D., Desojo J. B., et al (2015) Redescription and phylogenetic relationships of the proterochampsid Rhadinosuchus gracilis (Diapsida: Archosauriformes) from the early Late Triassic of southern Brazil, Ameghiniana 52
Ezcurra M. D. (2016) The phylogenetic relationships of basal archosauromorphs, with an emphasis on the systematics of proterosuchian archosauriforms, PeerJ 4, e1778
F. v. Huene (1942) Lieferungen 3/4. Pseudosuchia, Saurischia, Rhynchosauridae und Schlussabschnitt [Parts 3/4. Pseudosuchia, Saurischia, Rhynchosauridae, and Conclusions]: Die Fossilen Reptilien des Südamerikanischen Gondwanalandes. Ergebnisse der Sauriergrabungen in Südbrasilien 1928/29 [The Fossil Reptiles of South American Gondwanaland. Results of the Dinosaur Expeditions in southern Brazil 1928/29]. C. H. Beck'sche Verl - via Catalogue of Life
M. D. Ezcurra (2016) The phylogenetic relationships of basal archosauromorphs, with an emphasis on the systematics of proterosuchian archosauriforms: PeerJ: e1778 - via Catalogue of Life
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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