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Extinct genus of reptiles
Palaeagama is an
extinct
genus of
neodiapsid reptile from the
Late Permian or
Early Triassic of
South Africa.
[1] It is based on an articulated skeleton which was probably found in the Early Triassic
Lystrosaurus Assemblage Zone, or potentially the Late Permian
Daptocephalus Assemblage Zone.
[2] Despite the completeness of the specimen, Palaeagama is considered as a "wildcard" taxon of uncertain affinities due to poor preservation.
[3] It was originally considered an "eosuchian" (ancestral to modern reptiles),
[4] and later reinterpreted as a lizard ancestor closely related to
Paliguana and
Saurosternon.
[2] Modern studies generally consider it an indeterminate neodiapsid,
[1]
[3] though a few
phylogenetic analyses tentatively support a position at the base of
Lepidosauromorpha.
[5]
[6]
References
- ^
a
b Ford, David P.; Evans, Susan E.; Choiniere, Jonah N.; Fernandez, Vincent; Benson, Roger B. J. (2021-08-25).
"A reassessment of the enigmatic diapsid Paliguana whitei and the early history of Lepidosauromorpha". Proceedings of the Royal Society B: Biological Sciences. 288 (1957): 20211084.
doi:
10.1098/rspb.2021.1084.
PMC
8385343.
PMID
34428965.
- ^
a
b Carroll, Robert L. (1975). "Permo-Triassic 'lizards' from the Karroo". Palaeontologia Africana. 18: 71–87.
- ^
a
b Ezcurra, Martín D.; Scheyer, Torsten M.; Butler, Richard J. (2014-02-27).
"The Origin and Early Evolution of Sauria: Reassessing the Permian Saurian Fossil Record and the Timing of the Crocodile-Lizard Divergence". PLOS ONE. 9 (2): e89165.
Bibcode:
2014PLoSO...989165E.
doi:
10.1371/journal.pone.0089165.
ISSN
1932-6203.
PMC
3937355.
PMID
24586565.
-
^ Broom, R. (1926).
"On a nearly complete Skeleton of a new Eosuchian Reptile (Palæagama veilhaueri , gen. et sp. nov.)". Proceedings of the Zoological Society of London. 96 (2): 487–491.
doi:
10.1111/j.1469-7998.1926.tb08109.x.
ISSN
0370-2774.
-
^ Simões, Tiago R.; Caldwell, Michael W.; Tałanda, Mateusz; Bernardi, Massimo; Palci, Alessandro; Vernygora, Oksana; Bernardini, Federico; Mancini, Lucia; Nydam, Randall L. (2018).
"The origin of squamates revealed by a Middle Triassic lizard from the Italian Alps". Nature. 557 (7707): 706–709.
Bibcode:
2018Natur.557..706S.
doi:
10.1038/s41586-018-0093-3.
ISSN
1476-4687.
PMID
29849156.
S2CID
44108416.
-
^ Sobral, Gabriela; Simões, Tiago R.; Schoch, Rainer R. (2020-02-20).
"A tiny new Middle Triassic stem-lepidosauromorph from Germany: implications for the early evolution of lepidosauromorphs and the Vellberg fauna". Scientific Reports. 10 (1): 2273.
Bibcode:
2020NatSR..10.2273S.
doi:
10.1038/s41598-020-58883-x.
ISSN
2045-2322.
PMC
7033234.
PMID
32080209.