Oecotraustes is an extinct cephalopod genus included in the ammonid family Oppeliidae and named by Wilhelm Waagen in 1869. Species in the genus lived during the Middle Jurassic.[1]
Description
The shell of Oecotraustes is evolute, the outer whorl only moderately embracing the inner whorls, laterally compressed whorl height greater than width. Outer flanks and venter ribbed, ribs sinuous.[citation needed]
Distribution
Fossils of Oecotraustes species have been found in Jurassic sediments of Germany, India, Madagascar, Spain, and the United States.[2]
References
Other sources
- W.J. Arkell et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geological Society of America.