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Helagras

Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)8232185https://www.gbif.org/species/8232185
PaleoBioDB ID (PBDB)38102https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=38102
Rankgenus
Taxonomy (GBIF,PBDB)Life : Animalia : Chordata : Reptilia : Squamata : Helagras
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
-Lepidosauromorpha
superorderLepidosauria
orderSquamataOppel 1811
suborderOphidia
-Serpentes
infraorderAlethinophidiaNopcsa 1923
-Henophidia
genusHelagrasCope 1883
Scientific NameHelagras Cope, 1883
Name Published InProc. Amer. Phil. Soc., 20
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Helagrasgenusbelongs to Crotalidaestated without evidenceHay, 1902
Helagrasgenusbelongs to Henophidiastated with evidenceHolman, 1983
Helagrasgenusbelongs to BoidaeimpliedCarroll, 1988
Helagrasgenusbelongs to Erycinaestated without evidenceHolman, 2000
Status (PBDB)extinct
Taxon Size (PBDB)3
First Recorded Appearance66.0 - 63.3 Ma
Paleocene
Last Recorded Appearance33.9 - 33.3 Ma
Oligocene
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)E. D. Cope. 1883. First addition to the fauna of the Puerco Epoch. Paleontological Bulletin 36:545-563

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Helagras orellanensis
species
accepted (GBIF)
listed (PBDB)
133.9 Ma
Oligocene
33.9 Ma
Oligocene
Helagras prisciformis
species
accepted (GBIF)
listed (PBDB)
266.0 Ma
Late/Upper Cretaceous
63.3 Ma
Paleocene

Synonymy List

YearName and Author
1883Helagras Cope p. 545
1902Helagras Hay p. 481
1983Helagras Holman p. 419
1988Helagras Carroll
2000Helagras Holman p. 74

References

Cope E. D. First addition to the fauna of the Puerco Epoch, Paleontological Bulletin 36, 545-563
Hay O. P. (1902) , Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey 179, 1-868
Holman J. A. (1983) A new species of Helagras (Serpentes) from the Middle Oligocene of Nebraska., Journal of Herpetology 17, 417-419
Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698
Holman J. A. (2000) The fossil snakes of North America
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
Proc. Amer. Phil. Soc., 20 - via The Interim Register of Marine and Nonmarine Genera
original publication/web search (AJR). - 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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