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Youngina

Description

Youngina is an extinct genus of diapsid reptile from the Late Permian Beaufort Group (Tropidostoma-Dicynodon zones) of the Karoo Red Beds of South Africa. This, and a few related forms, make up the family Younginidae, within the Order Eosuchia (proposed by Broom in 1914). Eosuchia, having become a wastebasket taxon for many probably distantly-related primitive diapsid reptiles ranging from the Late Carboniferous to the Eocene, Romer proposed that it be replaced by Younginiformes (that included Younginidae and the Tangasauridae, ranging from the Permian to the Triassic).


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4818230https://www.gbif.org/species/4818230
PaleoBioDB ID (PBDB)37800https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=37800
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Younginidae : Youngina
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Eosuchia : Youngina
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
genusYounginaBroom 1914
Scientific NameYoungina Broom, 1914
Name Published InProc. Zool. Soc. London, 1914,
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Younginagenusbelongs to Younginidaestated with evidenceBroom, 1914
Younginagenusbelongs to YounginidaeimpliedCarroll, 1988
Younginagenusbelongs to Neodiapsidastated with evidenceSenter, 2004
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance260 - 254 Ma
Permian
Last Recorded Appearance260 - 252 Ma
Permian
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)R. Broom. 1914. A new Thecodont Reptile. Proceedings of the Zoological Society of London 1914:1072-1077
Wikipediahttps://en.wikipedia.org/wiki/Youngina

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Youngina capensis
species
accepted (GBIF)
listed (PBDB)
12260 Ma
Permian
260 Ma
Permian

Synonymy List

YearName and Author
1914Youngina Broom pp. 1072, 1075 figs. 1, 2
1937Youngopsis Broom p. 317 fig. 16
1937Youngoides Olson and Broom pp. 613-614
1982Youngina Currie
1985Youngina Benton p. 157
1987Acanthotoposaurus Evans and van den Heever p. 724
1988Youngina Carroll
2004Youngina Senter p. 260
2009Youngina Bickelmann et al.

References

Broom R. (1914) A new Thecodont Reptile, Proceedings of the Zoological Society of London 1914, 1072-1077
Broom R. (1937) A further contribution to our knowledge of the fossil reptiles of the Karroo, Proceedings of the Zoological Society of London 107 3, 299-318
Olson E. C., Broom R. (1937) New genera and species of tetrapods from the Karroo Beds of South Africa, Journal of Paleontology 11 7, 613-619
Currie P. J. (1982) The osteology and relationships of Tangasaurus mennelli Haughton (Reptilia, Eosuchia), Annals of the South African Museum 86 8, 247-265
Benton M. J. (1985) Classification and phylogeny of the diapsid reptiles, Zoological Journal of the Linnean Society 84 2, 97-164
Evans S. E., van den Heever J. A. (1987) A new reptile (Reptilia: Diapsida) from the Upper Permian Daptocephalus zone of South Africa, South African Journal of Science 83, 724-730
Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698
Senter P. (2004) Phylogeny of Drepanosauridae (Reptilia: Diapsida), Journal of Systematic Palaeontology 2 3, 257-268 doi:10.1017/S1477201904001427
Bickelmann C., Müller J., et al (2009) The enigmatic diapsid Acerosodontosaurus piveteaui (Reptilia: Neodiapsida) from the Upper Permian of Madagascar and the paraphyly of\r\n‘‘younginiform’’ reptiles, Canadian Journal of Earth Sciences 46 9, 651-661 doi:10.1139/E09-038
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
SN2000: Brands, S. J. (compiler) 1989-2005. Systema Naturae 2000. Amsterdam, The Netherlands (2006 version). Available online at http://sn2000.taxonomy.nl/. - via The Interim Register of Marine and Nonmarine Genera
as per family - via The Interim Register of Marine and Nonmarine Genera
Proc. Zool. Soc. London, 1914, - 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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