Extinct genus of ray-finned fishes
Aglyptorhynchus is an extinct genus of marine billfish that was distributed worldwide from the early Eocene to the early Miocene. Fossils are primarily known from the Northern Hemisphere (both coasts of North America and western/central Europe), but one species is also known to have inhabited the waters off New Zealand.
The following species are known:
Indeterminate remains are known from the early and late Oligocene of South Carolina (Ashley &amp; Chandler Bridge formations) and the Miocene of Hungary (Törökbálint Formation). It has been hypothesized that "Aglyptorhynchus" originally arose in the Atlantic around the warm Gulf Stream, and migrated to the Pacific by the Oligocene via the then-open Central American Seaway.
References.
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