Desmostylus hesperus Variante:Pintado a mano It was described in 2014

It was described in 2014

the central toe being the main support for body weight

making it a key taxon for understanding the evolutionary transition from toothed cetaceans to toothless filter feeders

and slightly serrated

Desmostylus hesperus Variante:Pintado a mano It was described in 2014Desmostylus hesperus was a semi aquatic marine mammal from the Miocene belonging to Desmostylia, an extinct order of mammals known exclusively from the North Pacific. Unlike sirenians, pinnipeds or cetaceans, desmostylians represented a distinct evolutionary lineage that has completely disappeared. They have traditionally been associated with Tethytheria, the broader evolutionary group that includes sirenians and proboscideans. The generic name means