#delphyodontos

[justgoji]

Protostega, Nothosaurus, Henodus, Bothriolepis, Austrolimulus, Pharyngolepis, Marrella, Clausocaris, and Delphyodontos!

[palaeopedia]

The womb tooth, Delphyodontos (1980)

Phylum : Chordata Class : Chondrichthyes Subclass : Holocephali Order : Chimaeriformes Genus : Delphyodontos Species : D. dacriformes

Early Carboniferous (340 Ma)

12 cm long (size)

North America (map)

According to the fossils, the recently born would have resembled tadpoles with small, but sharp beaks. Because of the evidence suggesting intrauterine cannibalism, D. dacriformes is assumed to have been carnivorous, though, besides siblings, it is unknown what other organisms they would have eaten.