Horsey Green Bed ( of the United States)
Where: Cochise County, Arizona (32.0° N, 110.2° W: paleocoordinates 32.1° N, 109.6° W)
• coordinate based on political unit
When: St. David Formation, Blancan (4.9 - 1.8 Ma)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial
Primary reference: N. M. Johnson, N. D. Opdyke, and E. H. Lindsay. 1975. Magnetic Polarity Stratigraphy of Pliocene-Pleistocene Terrestrial Deposits and Vertebrate Faunas, San Pedro Valley, Arizona. Geological Society America Bulletin 86(1):5-12 [J. Alroy/J. Alroy/M. Uhen]more details
PaleoDB collection 19644: authorized by John Alroy, entered by John Alroy on 30.04.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
• within chron C2An.1n
Show authors, comments, and common names
| Mammalia | |
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Nannippus cf. peninsulatus Cope 1885 hipparionine horse
Equus sp. Linnaeus 1758 horse | |