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Dyoplax

Description

Dyoplax is an extinct genus of pseudosuchian archosaur, possibly an erpetosuchid. Fossils have been found from the type locality within the upper Schilfsandstein Formation in Stuttgart, Germany. The holotype specimen was a natural cast of a nearly complete skeleton that lacked only parts of the tail and limb bones.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4818104https://www.gbif.org/species/4818104
PaleoBioDB ID (PBDB)38280https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=38280
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Thecodontia : Aetosauridae : Dyoplax
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Eosuchia : Dyoplax
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
genusDyoplaxFraas 1867
Scientific NameDyoplax Fraas, 1867
Name Published InJahresh. Ver. Württemb., 23
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Dyoplaxgenusbelongs to Aetosauridaestated with evidenceWatson, 1917
Dyoplaxgenusbelongs to Proterosuchidaestated without evidenceHuene, 1922
Dyoplaxgenusbelongs to Erpetosuchidaestated with evidenceNopcsa, 1928
Dyoplaxgenusbelongs to Aetosauridaestated without evidenceHuene, 1942
Dyoplaxgenusbelongs to Erpetosuchidaestated with evidenceKuhn, 1966
Dyoplaxgenusbelongs to Thecodontiastated with evidenceKuhn, 1971
Dyoplaxgenusbelongs to ErpetosuchidaeimpliedCarroll, 1988
Dyoplaxgenusbelongs to Sphenosuchiastated with evidenceLucas et al., 1998
Dyoplaxgenusbelongs to Pseudosuchiastated with evidenceNesbitt and Butler, 2012
Dyoplaxgenusbelongs to Archosauriformesstated with evidenceIrmis et al., 2013
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance237 - 228 Ma
Late/Upper Triassic
Last Recorded Appearance237 - 228 Ma
Late/Upper Triassic
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)R. L. Carroll. 1988. Vertebrate Paleontology and Evolution
Wikipediahttps://en.wikipedia.org/wiki/Dyoplax

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Dyoplax arenaceus
species
accepted (GBIF)
listed (PBDB)
1237 Ma
Middle Triassic
237 Ma
Middle Triassic

Synonymy List

YearName and Author
1867Dyoplax Fraas
1917Dyoplax Watson p. 180
1922Dyoplax Huene p. 22
1928Dyoplax Nopcsa p. 186
1942Dyoplax Huene p. 244
1966Dyoplax Kuhn p. 72
YearName and Author
1971Dyoplax Kuhn p. 13
1988Dyoplax Carroll
1998Dyoplax Lucas et al.
2012Dyoplax Nesbitt and Butler
2013Dyoplax Irmis et al.

References

Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698
Huene F. v. (1922) The Triassic reptilian order Thecodontia, The American Journal of Science, series 5 4, 22-26
Nopcsa B. F. (1928) The genera of reptiles, Palaeobiologica 1, 163-188
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
Kuhn O. W. M. (1966) , Die Reptilien. System und Stammesgeschichte [The Reptiles. Systematics and Phylogeny.], 1-154
Kuhn O. (1971) , Die Saurier der deutschen Trias [Reptiles of the German Triassic], 1-105
Lucas S. G., Wild R., et al (1998) Dyoplax O. FRAAS, a Triassic sphenosuchian from Germany, Stuttgarter Beiträge zur Naturkunde Serie B (Geologie und Paläontologie) 263, 1-13
Nesbitt S. J., Butler R. J. (2012) Redescription of the archosaur Parringtonia gracilis from the Middle Triassic Manda beds of Tanzania, and the antiquity of Erpetosuchidae, Geological Magazine doi:10.1017/S0016756812000362
Irmis R. B., Nesbitt S. J., et al (2013) Early Crocodylomorpha, Anatomy, Phylogeny and Palaeobiology of Early Archosaurs and their Kin. Geological Society, London, Special Publications 379, 275-302
GBIF/Paleo Database - via The Interim Register of Marine and Nonmarine Genera
Jahresh. Ver. Württemb., 23 - via The Interim Register of Marine and Nonmarine Genera
Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera
as per family - via The Interim Register of Marine and Nonmarine Genera
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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