Orcinus citoniensis
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Orcinus citoniensis is an extinct species of orca identified in the Late Pliocene of Italy and the Early Pleistocene of England. It was smaller than the modern killer whale, 4 m versus 7 to 10 m, and
Orcinus citoniensis
A restoration of Orcinus citoniensis
The modern killer whale (Orcinus orca)
Hemisyntrachelus
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Hemisyntrachelus is an extinct genus of cetacean. This genus is known in the fossil record from the latest Miocene to the Quaternary. Fossils are found in the marine strata of Italy, the Netherlands,
Orcinus citoniensis
…and other dolphins. O. citoniensis could have hunted fish and squid in pods, and coexisted with other large predators of the time such as the orcinine Hemisyntrachelus and the extinct shark Otodus megalodon. The holotype specimen, MB-1COC-11.17.18, an incomplete skeleton, was first described by paleontologist Giovanni…
Hemisyntrachelus cortesii