Also known as Bressler
Where: Yavapai County, Arizona (34.8° N, 111.9° W: paleocoordinates 34.9° N, 111.2° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Verde Formation, Blancan (4.9 - 1.8 Ma)
• from a "1/2-m-thick" bed
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; diatomaceous, green mudstone
Size class: mesofossils
Primary reference: N. J. Czaplewski. 1987. Sigmodont rodents (Mammalia; Muroidea; Sigmodontinae) from the Pliocene (early Blancan) Verde Formation, Arizona. Journal of Vertebrate Paleontology 7(2):183-199 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 19621: authorized by John Alroy, entered by John Alroy on 30.04.1994, edited by Patricia Holroyd
Creative Commons license: CC BY (attribution)
Taxonomic list
•"third reversed polarity interval of the Gilbert magnetic chron," i.e., Chron 3n.2r, between 4.43 and 4.61 Ma according to Cande and Kent 1992
•"Soricidae indet." is omitted by Czaplewski 1990
•specimen of "Nebraskomys sp." is "not assignable" to this genus, but no reidentification is given: Winkler and Grady 1990; referred to as Arvicolinae indet. by Czaplewski 1990
Mammalia | |
Bassariscus sp. Coues 1887 ringtail | |
| |
"Sigmodon medius" = Sigmodon minor Gidley 1922 cotton rat | |
Leporidae indet. Fischer de Waldheim 1817 rabbit |