Projektionstyps

Projektionstyps is an extinct family of mid-to-large-sized odontocete cetaceans that lived during the late Miocene to early Pliocene epochs. The family is characterized by the presence of cone-like projections on the dorsal surface of their heads, which are thought to be related to echo-location and social behavior.

The first known species of the family was Projektionstyps atlanticus, discovered in the late 19th century in the Atlantic coastal regions of North America. Subsequent finds in various parts of the world have led to the recognition of several other species within the family.

These cetaceans were relatively large, with adult Projektionstyps species estimated to be around 10-15 meters in length. Their bodies were typically robust, with a high number of vertebrae in the spine and powerful tail fins. The most distinctive feature of the family, however, is the presence of small, conical projections, known as tubercles, on the dorsal surface of their heads.

Studies on Projektionstyps fossils have provided valuable insights into the evolution of cetaceans and their sensory systems. The presence of these unique tubercles suggests that Projektionstyps were highly adapted to their environment, possibly using echolocation and social interactions to navigate and locate prey. Despite their scientific interest, however, the family has largely been relegated to the status of "extinct relic," with ongoing research focused on elucidating the relationships between Projektionstyps and other families within the cetacean order.