Pessopteryx

Pessopteryx; Temporal range: Early Triassic, Olenekian PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	†Ichthyosauria
Family:	†Merriamosauridae
Genus:	†Pessopteryx; Wiman, 1910
Species
	†P. nisseri Wiman, 1910 (type);
Synonyms
	Merriamosaurus hulkei Maisch & Matzke, 2002; Omphalosaurus niesseri (Wiman, 1910); Rotundopteryx hulkei Maisch & Matzke, 2000 non Duckhouse, 1999;

Pessopteryx is an extinct genus of ichthyosaur from the Early Triassic (Olenekian) of Svalbard, Norway.^[1] The genus originally contained four species, P. nisseri, P. arctica, P. pinguis, and P. minor, which were named in 1910 by Carl Wiman.^[2]^[3] Only P. nisseri is still considered valid; P. arctica and P. pinguis are considered nomina dubia while P. minor was reassigned to the tenuous genus Isfjordosaurus.^[3] Omphalosaurus nisseri, Merriamosaurus hulkei, and Rotundopteryx hulkei are all junior synonyms of P. nisseri.^[1]

References

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