Abstract - Palaeoecology and Palaeoenvironments of Late Cenozoic Mammals/Early Rancholabrean Mammals From Salamander Cave, Black Hills, South Dakota
Mead, Jim, Manganaro, Carol, Repenning, Charles A. and Agenbroad, Larry D. Palaeoecology and Palaeoenvironments of Late Cenozoic Mammals/Early Rancholabrean Mammals From Salamander Cave, Black Hills, South Dakota. 17+ p.
Salamander Cave is a small cavern with a natural trap entrance. The Horse Room contains a small fauna produced by the infilling from a now sealed entrance. Uranium-seris analysis of speleothems and horse bone indicate that the Horse Room is recording a local faunal community approximately 252,000 years old. Sixteen taxa are recognized. Extinct taxa include the rodents Mictomys cf. M. meltoni, Microtus paroperarius, & Terricola meadensis along with Canis cf. C. dirus, Equus sp. and Camelops sp. Extra-limital species include Cynomys (Leucocrossuromys) sp. and Lepus cf. L. americanus. The fauna may mark the youngest co-occurrence of the extinct rodent species. The Black Hills offer a desirable location to examine evolutionary changes and speciation following immigration because of their unique 'middle ground' location in North America.
Did You Know?
The American bison is the largest terrestrial mammal in North America. Male bison can weigh a ton and can run 35 miles per hour. Do not approach bison. They weigh more and can outrun you. More...