Mike's Main Channel (Oligocene of the United States)

Also known as Mo-108, in part

Where: Morrill County, Nebraska (41.7° N, 103.1° W: paleocoordinates 42.5° N, 96.6° W)

• coordinate based on political unit

When: Unit B Member (Gering Formation), Geringian (30.8 - 26.3 Ma)

Environment/lithology: terrestrial

Primary reference: C. C. Swisher. 1982. Stratigraphy and biostratigraphy of the eastern portion of the Wildcat Ridge, western Nebraska. 1-172 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 17544: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by K. Christopher Beard

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Tribosphenida - Herpetotheriidae
Herpetotherium youngi1 McGrew 1937 marsupial
 Soricomorpha - Proscalopidae
Proscalops tertius Reed 1961 placental
 Primates - Ekgmowechashalidae
Ekgmowechashala philotau2 Macdonald 1963 primate
 Rodentia - Cricetidae
Geringia mcgregori Macdonald 1970 rodent
"B": described by Martin 1980a; "Paciculus cf. insolitus" of Alker 1969
 Rodentia - Allomyidae
Downsimus chadwicki Macdonald 1970 rodent
 Rodentia - Castoridae
Palaeocastor sp.1 Leidy 1869 beaver
 Rodentia - Heteromyidae
"Kirkomys schlaikjeri" = Proharrymys schlaikjeri1, "Proheteromys fedti" = Proharrymys fedti, Proheteromys ironcloudi
"Kirkomys schlaikjeri" = Proharrymys schlaikjeri1 Black 1961 rodent
"Proheteromys fedti" = Proharrymys fedti Macdonald 1963 rodent
Proheteromys ironcloudi Macdonald 1963 rodent
 Lagomorpha - Leporidae
Palaeolagus hypsodus Schlaikjer 1935 rabbit
Palaeolagus philoi Dawson 1958 rabbit