Mouth of Minnechaduza Creek (Miocene of the United States)

Where: Cherry County, Nebraska (42.8° N, 100.8° W: paleocoordinates 43.4° N, 97.5° W)

• coordinate based on political unit

When: Barstovian (16.3 - 12.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: M. R. Thorpe. 1922. Some Tertiary Carnivora in the Marsh collection, with descriptions of new forms. American Journal of Science 3(18):423-455 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18271: authorized by John Alroy, entered by John Alroy on 21.09.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• although vague, this appears to be a single YPM locality not represented in other collections because none of the localities of Stirton and McGrew 1935, Webb 1969a, or Skinner and Johnson 1984 are at the mouth of Minnechaduza Creek; however, the Valentine Railway Quarries are about 4 mi S of this point
Mammalia
 Carnivora - Amphicyonidae
"Amphicyon sinapius" = Cynelos sinapius
"Amphicyon sinapius" = Cynelos sinapius Matthew 1902 bear-dog
"near the mouth of Minnechaduza Creek"
 Carnivora - Mustelidae
Brachypsalis pachycephalus Cope 1890 mustelid carnivore
"near the mouth of Minnechaduza Creek on the Niobrara River"
 Carnivora - Canidae
"Tephrocyon marshi n. sp." = Aelurodon ferox
"Tephrocyon marshi n. sp." = Aelurodon ferox Leidy 1858 bone-crushing dog
"along the Niobrara River, not far west of the mouth of Minnechaduza Creek"
 Carnivora - Felidae
Pseudaelurus marshi n. sp. Thorpe 1922 cat
"Niobrara River, near mouth of Minnechaduza Creek"