Streblitinae is a subfamily of Upper Jurassic and Lower Cretaceous ammonites within the family
Oppeliidae
Oppeliidae are compressed to oxyconic, sculptured Haploceratoidea, either unkeeled, unicarinate, bicarinate, or tricarinate; with sutures in great variety, but ribbing usually more or less falcoid or falcate. The Oppeliidae is the principal famil ...
characterized by compressed, involute shells; typically oxycones with complex sutures. Includes ''
Streblites'', ''
Pseudoppelia'', and ''
Substreblites''. Derivation is from the
Taramelliceratinae. May have given rise to the
Aconiceratinade.
References
W.J. Arkell ''et al.'', 1957 Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press.
D.T. Donovan, J.H. Callomon, and M.K. Howarth, 1981. Classification of the Jurassic Ammonitina. The Systematics Association Special Volume no. 18. The Ammonoidea. Academic Press.
Oppeliidae
Late Jurassic first appearances
Early Cretaceous extinctions
{{ammonitina-stub