Some shark species might belong to their own distinct lineage, which is separate from all other sharks, rays and skates, ...
Shark teeth found in 5-million-year-old whale skulls provide direct evidence of ancient feeding behavior and predator-prey ...
A painted reconstruction of a bluntnose six-gill shark (or cow shark) scavenging on a tiny extinct right whale carcass during the Early Pliocene of the southern North Sea. A pod of an extinct whale ...
Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. This is a lot of three (3) Sevengill Cowshark (Notorynchus) teeth from the Middle Miocene, about 15 million years old.
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