Genus: Otschevia EFRIMOV, 1997
Etymology: In honor of the paleontologist, V. G. Ochev, a specialist on Paleozoic
and Mesozoic reptiles from the Volga Region and Fore-Urals.
Species: volgensis (KAZANSKY, 1903) EFIMOV, 1997
Etymology: In refernce to Volga Region, European Russia.
= Ichthyosaurus volgensis KAZANSKY, 1903 (nomen dubium)
Holotype: SGU
Locality: Gorodischii, Near Ul’yanovskk, Volga Region, European Russia.
Horizon:
Biostratigraphy: Vigatites virgatus zone.
Age: Middle Volgian Substage, Late Jurassic.
Material: Fragmentary skeleton.
Note: May be Ophthalmosaurus sp (STORRS, ARKHANGEL’SKII & EFIMOV,
2000)
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Species: pseudoscythica EFIMOV, 1997
Etymology: From the pseudoscythica Zone, where the fossils of the ichthyosaur
were found.
= Brachypterygius pseudoscythius (EFIMOV, 1997) MAISCH & MATZKE, 2000
Holotype: PMU 3/100
Locality: Right bank of the River Volga, 8 km to the east of the Village of Novaya Beden’ga of Ulyanovsk District, Ulyanovsk Region, European Russia.
Horizon: Lower Substage, Volgian Stage
Biostratigraphy: Ilowaiskya pseudoscythica Zone.
Age: Late Jurassic.
Material: Occipital region, pariteials, nasals, jaw bones, teeth, pectoral girdle, forelimbs, vertebral column, (60 vertebrae).
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Species: zhuravlevi (ARKHANGELSKY, 1998) ARKHANGELSKY, 2000
Etymology: In honor of K. I. Zhuravlev.
= Brachypterygius zhuravlevi ARKHANGELSKY,
1998
Holotype: PIN no. 426/60-76
Locality: Savel’evskii Shale Mine near the village of Gorni, Krasnopartizanskii District, Saratov Region, European Russia.
Horizon:
Biostratigraphy: Dorsoplanites panderi Zone, Middle Substage of the Volgian Stage.
Age: Late Jurassic.
Material: Left humerus with the elements of the epipodium and autopodium.
Referred material:
ARKHANGELSKY, 2000
Locality: Kashpirskoe Pyroshale Field (Mine no. 3), Syzranskii District, Samara Region, European Russia.
Horizon:
Biostratigraphy: Lower part of the Dorsoplanites panderi Zone, Middle Substage, Volgian Stage.
Age: Late Jurassic.
Material:
SRM Hb 30192: Occipital doncyles, fragmentary lower jaw, incomplete vertebral column, fragmentary ribs, both humeri, elements of epipodium and autopodium and right femur of one individual.
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Species: alekseevi ARKHANGELSKY, 2001
Etymology: In honor of the late geologist A. V. Alekseev from Ulyanovsk.
Holotype: Ulyanovsk Regional Musum, URM 56702
Locality: Right bank of the Volga River, 18 km north of Ulyanovsk, Ulyanovsk District, Ulyanovsk Region, European Russia.
Horizon: Volgian Stage.
Biostratigraphy: Dorosplanites panderi Zone.
Age: Late Jurassic.
Material: Fragmentary skull, humeral girdle, forelimbs, vertebral column (60
vertebrae) and ribs.