Gracilineustes
| Gracilineustes Temporal range: 167–155 Ma | |
|---|---|
 | |
| Holotype of G. leedsi, NHMUK PV R3540 | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sauropsida |
| (unranked): | Mesoeucrocodylia |
| Suborder: | Thalattosuchia |
| Family: | Metriorhynchidae |
| Genus: | Gracilineustes Young et al., 2010 |
| Species | |
Gracilineustes is an extinct genus of marine crocodyliform that lived in the oceans during the Middle to Late Jurassic. Gracilineustes was a carnivore that spent much, if not all, its life out at sea.
Discovery and species
Skull and limb of G. leedsi
Fossil specimens referrable to Gracilineustes are known from Middle-Late Jurassic deposits of England and France.[3]
Valid species
- G. leedsi: Western Europe (England) of the Middle Jurassic (Callovian);[2] Metriorhynchus laeve is a junior synonym.
- G. acutus: Western Europe (France) of the Late Jurassic (Kimmeridgian) [1]
References
- 1 2 Lennier G. 1887. Description des fossiles du Cap de la Hève. Bulletin de la Société Géologique de Normandie, Le Havre 12: 17-98.
- 1 2 Andrews CW. 1913. A descriptive catalogue of the marine reptiles of the Oxford Clay, Part Two. London: British Museum (Natural History), 206 pp.
- ↑ Young, Mark T., Brusatte, Stephen L., Ruta, M., Andrade, Marco B. 2009. "The evolution of Metriorhynchoidea (Mesoeucrocodylia, Thalattosuchia): an integrated approach using geometrics morphometrics, analysis of disparity and biomechanics". Zoological Journal of the Linnean Society 158: 801-859.
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