Paleollanosaurus

Paleollanosaurus Temporal range: Norian–Rhaetian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Rhynchocephalia
Genus:	†Paleollanosaurus Heckert, 2004
Species:	†P. fraseri
Binomial name
†Paleollanosaurus fraseri Heckert, 2004

Paleollanosaurus is an extinct genus of sphenodontian reptile that lived during the Late Triassic. The type species P. fraseri was described from a jaw fragment found in West Texas in North America.^[1] Remains have also been reported from Switzerland.^[2] It is generally considered a basal sphenodontian. Cladogram following Chambi-Trowell et al., 2021.^[3]

Rhynchocephalia	Gephyrosaurus Penegephyrosaurus Sphenodontia Paleollanosaurus Vellberg rhynchocephalian Diphydontosaurus Acrosphenodontia Planocephalosaurus Godavarisaurus Polysphenodon Microsphenodon Eusphenodontia

References

1. A. B. Heckert. 2004. Late Triassic microvertebrates from the lower Chinle Group (Otischalkian-Adamanian: Carnian), southwestern U.S.A. New Mexico Museum of Natural History and Science Bulletin 27:1-170
2. Whiteside, David I.; Duffin, Christopher J.; Furrer, Heinz (2017-07-01). "The Late Triassic lepidosaur fauna from Hallau, North-Eastern Switzerland, and a new 'basal' rhynchocephalian Deltadectes elvetica gen. et sp. nov". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 285 (1): 53–74. doi:10.1127/njgpa/2017/0669. ISSN 0077-7749.
3. Chambi-Trowell, Sofia A. V.; Martinelli, Agustín G.; Whiteside, David I.; Vivar, Paulo R. Romo de; Soares, Marina Bento; Schultz, Cesar L.; Gill, Pamela G.; Benton, Michael J.; Rayfield, Emily J. (2021-06-03). "The diversity of Triassic South American sphenodontians: a new basal form, clevosaurs, and a revision of rhynchocephalian phylogeny". Journal of Systematic Palaeontology. 19 (11): 787–820. doi:10.1080/14772019.2021.1976292. hdl:1983/af14affc-a26e-426b-83ca-e1833e355882. ISSN 1477-2019. S2CID 240487298.