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Dracontolestes
''Dracontolestes'' is a genus of extinct insectivorous mammals in the family Mixodectidae. It is known only from a fragment of fossilized mandible found in Dragon Canyon, Utah. Species There is only one known species in the genus, ''Dracontolestes aphantus''. References {{Taxonbar, from=Q85850465 Prehistoric mammals of North America Prehistoric placental genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mixodectidae
Mixodectidae, from Ancient Greek μιξο (''mixo'') "mixed", and δεκτες (''dektes'') "biter", is an extinct family of insectivorous placental mammals in the order Dermoptera. The mixodectids originated in the late Cretaceous and survived into the Paleocene in Europe and North America. Description While there is less anatomical evidence for this group than for other archaic placental families (such as apatemyids, pantolestids, leptictids, and palaeoryctids), preserved dental and cranial anatomies give an idea of mixodectid dietary requirements. Their rodent-like dental pattern was similar to that of the multituberculates, with a pair of large, strong, and forward-directed incisors and a row of multi-cusped and low-crowned premolars and molars a specialized dental set-up probably used for crushing and opening hard seeds and nuts. Torrejonian (Middle Paleocene) Mixodectidae had a dental set-up similar to the oldest plagiomenids and are therefore supposedly an ancest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Mammals Of North America
Prehistory, also called pre-literary history, is the period of human history between the first known use of stone tools by hominins million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared years ago. It took thousands of years for writing systems to be widely adopted, with writing having spread to almost all cultures by the 19th century. The end of prehistory therefore came at different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. It is based on an old conception of history that without written records there could be no history. The most common conception today is that history is based on evidence, however the concept of prehistory hasn't been completely discarded. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
