IGM Mch 2, road to Ferrotepec Mine (Miocene of Mexico)
Where: Michoacan, Mexico (18.1° N, 102.4° W: paleocoordinates 18.6° N, 99.7° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Ferrotepec Formation, Middle Miocene (16.0 - 11.6 Ma)
Environment/lithology: shoreface; sandstone and siltstone
• Sediments described as "occasionally so abundantly fossiliferous as to form coquinas." In the vicinity of Ferrotepec Mine, the unit contains abundant wood, pebbles, and barnacles interpreted as lower-salinity intervals, suggesting a very proximal environment.
Size class: macrofossils
Primary reference: J. W. Durham, S.P. Applegate, and L. Espinosa-Arrubarrena. 1981. Onshore marine Cenozoic along southwest Pacific coast of Mexico. Geological Society America Bulletin 92:384-394 [S. Peters/S. Peters]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 66167: authorized by Shanan Peters, entered by Shanan Peters on 03.10.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Echinoidea | |
|
Encope sp. Agassiz 1840 sand dollar | |
| Cephalopoda | |
|
Aturia angustata Conrad 1849 nautiloid | |
| Bivalvia | |
|
Chionopsis sp. Olsson 1932 venus clam | |