Miocene. Palaeocastor was much smaller than modern beavers. There are several species including Palaeocastor fossor, Palaeocastor magnus, Palaeocastor wahlerti...

such early species evolved into forms such as Palaeocastor from the Miocene of Nebraska. Palaeocastor was about the size of a muskrat, and dug corkscrew-shaped...

coyote- to wolf-sized amphicyonids that lived in packs, land beavers (Palaeocastor) that filled the ecological niche of modern prairie dogs, and thousands...

Mexico was named Augerinoichnus helicoidalis in honor of the augerino. Palaeocastor Carol Rose, Giants, Monsters, and Dragons: An Encyclopedia of Folklore...

Stenomylus, gazelle-like camelids. Oxydactylus, giraffe-like camelids. Palaeocastor, land beavers that dug large corkscrew-shaped burrows (Daemonelix). Moropus...

was found curled up in the "corkscrew" burrow of the Miocene beaver, Palaeocastor. Zodiolestes was most likely a predator of these fossorial beavers. This...

A fossil burrow of the Palaeocastor beaver....

were used to dig. Other extinct beavers, including the better-known Palaeocastor, were also fossorial (digging), but Migmacastor may have become a burrower...

lungfish, Palaeocastor, goanna, puffer fish, New Caledonian crow Golden eagle (1), cathedral termite (2), Homo habilis (3), Palaeocastor (5) Golden eagle...

Member. Left dentary (JODA 16005) & right dentary (JODA 3615). An eomyid. Palaeocastor P. fossor Grant & Wheeler counties. Kimberly, Haystack Valley & possibly...

†Palaeoborus rosatus – type locality for species †Palaeocastor †Palaeocastor peninsulatus †Palaeocastor wahlerti †Palaeogale †Palaeogale dorothiae – type...

†Osmunda Ostrea †Ostrea lurida – or unidentified comparable form Ostrya †Palaeocastor †Palaeolagus †Paleopanax †Paleopanax oregonensis Paliurus Pandora Panopea...

†Oreodontoides Ortalis †Osbornodon †Otarocyon †Oxetocyon †Oxydactylus †Palaeocastor †Palaeogale †Palaeolagus †Paracrax †Paradaphoenus †Paraenhydrocyon †Parahippus...

Ortalis †Osbornodon †Osbornodon iamonensis †Oxetocyon †Oxydactylus †Palaeocastor †Palaeogale †Palaeolagus Panthera †Panthera leo †Paracynarctus †Paradaphoenus...

clarnensis †Palaeocarya olsonii – or unidentified comparable form †Palaeocastor †Palaeocastor peninsulatus †Palaeolagus †Palaeolagus haydeni †Palaeophytocrene...

indeterminate Wounded Knee Area. Isolated tooth (SDSM 59157). An aplodontid. Palaeocastor P. simplicidens Wounded Knee Area. Partial cranium (AMNH 12900). A castorid...

type locality for genus †Palaeastur atavus – type locality for species †Palaeocastor †Palaeogale †Palaeogale dorothiae †Palaeogale minuta – or unidentified...

Gomphotherium and Platybelodon. Rodents including the burrowing beaver Palaeocastor and horned gopher Mylagaulus. Predators in this time period included...

hippodus Wounded Knee Area. Left ramus (SDSM 56113). An aplodontid. Palaeocastor P. nebrascensis Wounded Knee Area. Numerous skull elements. A castorid...