Named By: Etienne Geoffroy Saint-Hilaire - 1825.
Synonyms: Aeolodon, Leptocranius, Mycterosuchus, Mystriosaurus, Sericodon.
Classification: Chordata, Reptilia, Archosauromorpha, Mesoeucrocodylia, Thalattosuchia, Teleosauridae.
Species: S. megistorhynchus (type), S. baroni, S. bollensis, S. boutilieri, S. brevior, S. edwardsi, S. gracilirostris, S. heberti, S. jugleri, S. larteti, S. leedsi, S. megarhinus, S. obtusidens, S. priscus.
Size: Commonly between 2.5 and 3.5 meters long. Largest species S. heberti up to 5 meters long.
Known locations: England, France, Germany, Madagascar, Morocco and Switzerland.
Time period: Toarcian of the Jurassic through to the Barriasian of the Cretaceous.
Fossil representation: Multiple specimens.
Although the name means lizard, Steneosaurus was actually a crocodile. It is believed that Steneosaurus lived in coastal waters where it could hunt for animals like fish as well as possibly other small marine organisms. The broad geographical and temporal range combined with the remains of well over fifty individuals indicates that Steneosaurus was a very successful genus of crocodile.
- High diversity of thalattosuchian crocodylians and the niche partition in the Solnhofen Sea, M. B. Andrade & M. T. Young - 2008.
- The Late Jurassic crocodiles of the Langenberg near Oker, Lower Saxony (Germany), and description of related materials (with remarks on the history of quarrying the “Langenberg Limestone” and “Obernkirchen Sandstone”), N. Knotschke - 2006.