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Dromomeron gregorii ✝

Description

Dromomeron (meaning "running femur") is a genus of lagerpetonid dinosauromorph archosaur that lived around 220 to 211.9 ± 0.7 million years ago. The genus contains species known from Late Triassic-age rocks of the southwestern United States and northwestern Argentina. It is described as most closely related to the earlier Lagerpeton of Argentina, but was found among remains of true dinosaurs like Chindesaurus, indicating that the first dinosaurs did not immediately replace related groups.


From Wikipedia article at https://en.wikipedia.org/wiki/Dromomeron_gregorii, which is released under the Creative Commons Attribution-Share-Alike License 3.0.
Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4967568https://www.gbif.org/species/4967568
PaleoBioDB ID (PBDB)148224https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=148224
Rankspecies
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Lagerpetonidae : Dromomeron : Dromomeron gregorii
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Eosuchia : Lagerpetonidae : Dromomeron : Dromomeron gregorii
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
-Archosauria
informalAvemetatarsaliaBenton 1999
-OrnithodiraGauthier 1986
-DinosauromorphaBenton 1985
familyLagerpetonidaeArcucci 1986
genusDromomeronIrmis et al. 2007
speciesDromomeron gregoriiNesbitt et al. 2009
Generic NameDromomeron
Scientific NameDromomeron gregorii Nesbitt et al., 2009
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Dromomeron gregoriispeciesbelongs to Dromomeronstated with evidenceNesbitt et al., 2009
Dromomeron gregoriispeciesbelongs to Dromomeronstated without evidenceLanger et al., 2010
Dromomeron gregoriispeciesbelongs to Dromomeronstated with evidenceNesbitt, 2011
Dromomeron gregoriispeciesbelongs to Dromomeronstated without evidenceGriffin and Nesbitt, 2016
Status (PBDB)extinct
Taxon Size (PBDB)1
First Recorded Appearance228 - 209 Ma
Late/Upper Triassic
Last Recorded Appearance228 - 209 Ma
Late/Upper Triassic
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)S. J. Nesbitt, R. B. Irmis, and W. G. Parker, N. D. Smith, A. H. Turner, T. Rowe. 2009. Hindlimb osteology and distribution of basal dinosauromorphs from the Late Triassic of North America. Journal of Vertebrate Paleontology 29(2):498-516
Wikipediahttps://en.wikipedia.org/wiki/Dromomeron_gregorii

Fossil Distribution

Synonymy List

YearName and Author
2009Dromomeron gregorii Nesbitt et al. p. 499 figs. 2, 5, 9
2010Dromomeron gregorii Langer et al. p. 58
2011Dromomeron gregorii Nesbitt p. 44
2016Dromomeron gregorii Griffin and Nesbitt p. 2
2018Dromomeron gregorii Marsh p. 1
2019Dromomeron gregorii Martz and Small p. 2

References

Nesbitt S. J., Irmis R. B., et al (2009) Hindlimb osteology and distribution of basal dinosauromorphs from the Late Triassic of North America, Journal of Vertebrate Paleontology 29 2, 498-516 doi:10.1671/039.029.0218
Langer M. C., Ezcurra M. D., et al (2010) The origin and early evolution of dinosaurs, Biological Reviews 85, 55-110 doi:10.1111/j.1469-185X.2009.00094.x
Nesbitt S. J. (2011) The early evolution of archosaurs: relationships and the origin of major clades, Bulletin of the American Museum of Natural History 353, 1-292
Griffin C. T., Nesbitt S. J. (2016) The femoral ontogeny and long bone histology of the Middle Triassic (?late Anisian) dinosauriform Asilisaurus kongwe and implications for the growth of early dinosaurs, Journal of Vertebrate Paleontology 36 3, e1111224:1-22 doi:10.1080/02724634.2016.1111224
Marsh A. D. (2018) A new record of Dromomeron romeri Irmis et al., 2007 (Lagerpetidae) from the Chinle Formation of Arizona, U.S.A., PaleoBios 35, 1-8
Martz J. W., Small B. J. (2019) Non-dinosaurian dinosauromorphs from the Chinle Formation (Upper Triassic) of the Eagle Basin, northern Colorado: Dromomeron romeri (Lagerpetidae) and a new taxon, Kwanasaurus williamparkeri (Silesauridae), PeerJ 7, e7551:1-71 doi:10.7717/peerj.7551
S. J. Nesbitt (2011) The early evolution of archosaurs: relationships and the origin of major clades: Bulletin of the American Museum of Natural History: 1--292 - via Catalogue of Life
S. J. Nesbitt, R. B. Irmis, W. G. Parker, N. D. Smith, A. H. Turner, T. Rowe (2009) Hindlimb osteology and distribution of basal dinosauromorphs from the Late Triassic of North America: Journal of Vertebrate Paleontology 2: 498--516 (10.1671/039.029.0218) - 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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