Leninia information

Leninia; Temporal range: Early Cretaceous, 119–113 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	†Ichthyosauria
Family:	†Ophthalmosauridae
Subfamily:	†Ophthalmosaurinae
Genus:	†Leninia; Fischer et al., 2013
Type species
	†Leninia stellans; Fischer et al., 2013

Leninia is an extinct genus of basal ophthalmosaurine ichthyosaur known from the late Early Cretaceous (lower Aptian stage) of western Russia. Leninia was first named by Valentin Fischer, Maxim S. Arkhangelsky, Gleb N. Uspensky, Ilya M. Stenshin and Pascal Godefroit in 2013 and the type species is Leninia stellans.^[1] It was named for Vladimir Lenin, one of the leaders of the Communist Revolution in Russia, but not directlу: the museum where fossils is housed is located within the Lenin Memorial and Lenin school complex in Ulyanovsk; accordingly, the generic name reflects the geohistorical location of the find.

The specimen was discovered in 2012, on the banks of the river Volga near the town of Kriushi in a limestone nodule. There are several other fossils from the same time period near it, including ammonites, lamellibranchs and fish remains. Only part of the skull was found.^[2]

^ Fischer, V.; Arkhangelsky, M. S.; Uspensky, G. N.; Stenshin, I. M.; Godefroit, P. (2013). "A new Lower Cretaceous ichthyosaur from Russia reveals skull shape conservatism within Ophthalmosaurinae" (PDF). Geological Magazine. 151: 60–70. Bibcode:2014GeoM..151...60F. doi:10.1017/S0016756812000994.
^ Fischer, Valentin; Arkhangelsky, Maxim; N Uspensky, Gleb; Stenshin, Ilya; Godefroit, Pascal (2013-01-01). "A new Lower Cretaceous ichthyosaur from Russia reveals skull shape conservatism within Ophthalmosaurinae". Geological Magazine. 151: 60–70. Bibcode:2014GeoM..151...60F. doi:10.1017/S0016756812000994. hdl:2268/137853.

[Leninia-1] Fischer, V.; Arkhangelsky, M. S.; Uspensky, G. N.; Stenshin, I. M.; Godefroit, P. (2013). "A new Lower Cretaceous ichthyosaur from Russia reveals skull shape conservatism within Ophthalmosaurinae" (PDF). Geological Magazine. 151: 60–70. Bibcode:2014GeoM..151...60F. doi:10.1017/S0016756812000994.

[:0-2] Fischer, Valentin; Arkhangelsky, Maxim; N Uspensky, Gleb; Stenshin, Ilya; Godefroit, Pascal (2013-01-01). "A new Lower Cretaceous ichthyosaur from Russia reveals skull shape conservatism within Ophthalmosaurinae". Geological Magazine. 151: 60–70. Bibcode:2014GeoM..151...60F. doi:10.1017/S0016756812000994. hdl:2268/137853.

Leninia information

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Leninia

Ichthyotitan

Shastasaurus

Shonisaurus

Ichthyopterygia

Omphalosauridae

Temnodontosaurus

Ophthalmosauridae

Ophthalmosaurus

Ichthyosauria

Argovisaurus

Ichthyosaurus

Mixosaurus

Myobradypterygius

Chaohusaurus

Platypterygius

Sveltonectes

Gengasaurus

Ichthyosauriformes

Eretmorhipis

Stenopterygius

Leptonectidae

Mollesaurus

Brachypterygius

Himalayasaurus

Shastasauridae

Hupehsuchia

Sisteronia

Eurhinosaurus