Belemnitellidae Pavlov, 1914
Key morphological features: Belemnites are extinct relatives of squid, octupuses, and cuttlefish; the coleoid cephalopods. They were squid-like creatures with an internal shell, called the phragmocone, which is what gets preserved in the fossil record. Unfortunately little else is known about their morphology.
MOBILITY: Mobile (swim)
FEEDING MODE: Predator
J. R. Hendricks. 2018. Cephalopoda, Chapter 2.4 Coleoidea. In: The Digital Encyclopedia of Ancient Life.