Delphyodontos

Delphyodontos

Delphyodontos dacriformes was a prehistoric holocephalid fish from the early Carboniferous, from the Bear Gulch Limestone Lagerstätte, in Montana. Its fossils consist mainly of aborted fetuses or newly hatched young. Sharp teeth and fecal matter in the fossils suggests that Delphyodontos practiced intrauterine cannibalism, like some modern sharks, such as gray reef sharks.