The humerus bones are unique to shrew-moles because they exist as massive rectangular shapes, unlike other fossorial mammalian groups.

This second tooth may also represent a completely different, yet unknown mammalian group.

They are extremely successful and diverse, with more species to their credit than any other mammalian group.

See Paratheria (mammals) for the obsolete mammalian group that included xenarthrans.

Another isolated tooth, LACM 149371, cannot be aligned securely with any mammalian group.

"In the avian and mammalian groups, incest is extraordinarily rare," he said.

The rhinocerotoids were once among the most abundant and varied of all mammalian groups.

Most animals make their own vitamin C. Some mammalian groups cannot.

However, Indraloris has had a complicated taxonomic history, and some of the known material was misidentified as members of other mammalian groups for decades.

Such dispersals from Asia to Africa also were seen around the same time in other mammalian groups, including hystricognathous rodents and anthracotheres.