Lanthaniscus

Lanthaniscus Temporal range: Middle Permian, 270–265.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	†Parareptilia
Order:	†Procolophonomorpha
Family:	†Lanthaniscidae Ivakhnenko, 2008
Genus:	†Lanthaniscus Ivakhnenko, 1980
Type species
†Lanthaniscus efremovi Ivakhnenko, 1980

Lanthaniscus is an extinct genus of lanthanosuchoid ankyramorph parareptile known from the Guadalupian epoch (Late Roadian to latest Wordian age) of Eastern Europe, Russia.^[1] Lanthaniscus was first named by M. F. Ivakhnenko in 1980 and the type species is Lanthaniscus efremovi. L. efremovi was originally described on the basis of the holotype PIN 3706/9 from Peza-1 locality, Krasnoshchel' Formation, of Arkhangelsk.^[2] Various authors had assigned it to the family Lanthanosuchidae;^[3][4] however, Ivakhnenko, who described an additional specimen of L. efremovi in 2008, assigned Lanthaniscus to its own family, the Lanthaniscidae. The additional specimen PIN 4543/2, was collected from the same formation as the holotype, from the Nisogora locality, which is slightly younger in age.^[2]

References

1. Marcello Ruta; Juan C. Cisneros; Torsten Liebrect; Linda A. Tsuji; Johannes Muller (2011). "Amniotes through major biological crises: faunal turnover among Parareptiles and the end-Permian mass extinction". Palaeontology. 54 (5): 1117–1137. doi:10.1111/j.1475-4983.2011.01051.x.
2. M. F. Ivakhnenko (2008). "Podklass Parareptilia". In M. F. Ivakhnenko; E. N. Kurotchkin (eds.). [Fossil vertebrates of Russia and adjacent countries: Fossil reptiles and birds, Part 1] (in Russian). GEOS, Moscow. pp. 49–85.
3. Michael deBraga; Robert R. Reisz (1996). "The Early Permian Reptile Acleistorhinus pteroticus and Its Phylogenetic Position". Journal of Vertebrate Paleontology. 16 (3): 384–395. doi:10.1080/02724634.1996.10011328. JSTOR 4523731.
4. deBraga, M. and Rieppel, O. (1997). "Reptile phylogeny and the interrelationships of turtles." Zoological Journal of the Linnean Society, 120: 281-354.