IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

A new Barremian (Early Cretaceous) ichthyosaur from western Russia
Fischer, V.; Masure, E.; Arkhangelsky, M.S.; Godefroit, P. (2011). A new Barremian (Early Cretaceous) ichthyosaur from western Russia. J. Vertebr. Paleontol. 31(5): 1010-1025. hdl.handle.net/10.1080/02724634.2011.595464
In: Journal of Vertebrate Paleontology. Society of Vertebrate Paleontology: Norman, Okla.. ISSN 0272-4634, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 279771 [ OMA ]

Keyword
    Marine

Authors  Top 
  • Fischer, V., more
  • Masure, E.
  • Arkhangelsky, M.S.
  • Godefroit, P., more

Abstract
    A new ophthalmosaurid ichthyosaur, Sveltonectes insolitus, gen. et sp. nov., is described from a sub-complete and three-dimensionally preserved specimen from the late Barremian of western Russia. This new taxon is supported by 11 cranial, dental, and postcranial autapomorphies, and is also characterized by features previously considered as autapomorphic for some other Ophthalmosauridae, such as a processus narialis on the prefrontal and relatively long hind fins with pre- and postaxial accessory digits. We conducted a new phylogenetic analysis of Thunnosauria, which supports a ‘Stenopterygius’ origin for Ophthalmosauridae. Sveltonectes is regarded as the sister taxon of Aegirosaurus, which shares a similar skull roof construction. Contrary to most other Cretaceous ichthyosaurs, Sveltonectes is characterized by delicate and sharply pointed teeth, confirming that the ophthalmosaurids were ecologically highly diversified during the Early Cretaceous.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors