In Depth Isthminia is a genus of river dolphin that lived in Central America during the Miocene. Further Reading - Isthminia panamensis, a new fossil inioid (Mammalia, Cetacea) from the Chagres Formation of Panama and the evolution of ‘river dolphins’ in the Americas. - PeerJ 3:e1227. - N. D. Pyenson, J. Velez-Juarbe, C. S. Gutstein, … Read more
Yanoconodon: Research Database Mammaliaformes (Mammalia) · Early Cretaceous (~130-125 MYA) · Asia — China (Liaoning, Yixian Formation) Research Note: Yanoconodon was a mammaliaform from the Early Cretaceous of Liaoning, China — known from exceptionally preserved specimens and an important taxon for understanding early mammalian anatomy, ear evolution, and the Mesozoic diversification of mammals. … Read more
In Depth Ankylorhiza is a genus of dolphin known to have lived in waters around eastern North America during the Oligocene. Ankylorhiza was one of the larger toothed whales for its time and would have likely been a predator of everything from fish to other large marine creatures, possibly even whales. The incisor teeth of … Read more
Morotopithecus: Research Database Theropoda · Cretaceous · Unknown Research Note: Morotopithecus was a theropoda from the Cretaceous of Unknown, providing important data on prehistoric life and ecosystem dynamics. Research Finding Status Grade Year Method Citation Impact Young MacLatchy 2004: Morotopithecus and related taxa Journal of Human Evolution Confirmed A 2004 Fossil Young MacLatchy, … Read more
In Depth Archaeodobenus is an ancient relative of the walrus. Unlike the walrus however, Archaeodobenus did not have the large tusks that are the most familiar feature of the walrus. Instead, Archaeodobenus simply had slightly enlarged canine teeth, and an overall appearance more similar to that of a sea lion. Further Reading - A New … Read more