These squids lived in the Tithonian, Upper Jurassic (Age range from 155.7 to 150.8 million years ago) and their fossils were found in Germany.

In fossils usually the gladius is crushed or flattened, so as to hide the small stabilizers present towards the back.

Some phosphatizations of the soft parts preserve the strong striations on the gladius, on the back of the animal.

In the middle of the body there was an organ similar to a button, often preserved in a darker color than the rest of the fossil.

They were fast-moving nektonic carnivores living in lagoons, in shallow subtidal water and reefs.