Bothriolepis, Placoderm, Armored Fish Kentrosaurus Recent isotope work indicates that

Recent isotope work indicates that Desmostylus more likely lived (or spent a large amount of time) in freshwater or estuary ecosystems foraging for aquatic freshwater plants

serrated teeth

Chasmosaur radius

the Stromatopoda (mantis shrimp)

Anatomy: Eremotherium had peg-like teeth

Bothriolepis, Placoderm, Armored Fish Kentrosaurus Recent isotope work indicates thatBothriolepis was a bottom feeding armored fish that lived in brackish water and seas, in the middle of the Late Devonian period, about 370 million years ago. It has been found in every continent except Africa and South America. Bothriolepis had a blunt head and wide body covered with plates that measured about 10 inches (25cm) in length. The tail and posterior part of the trunk had no armor. The overall size of the living fish would have been about 24