Where: Coahuila de Zaragoza, Mexico (29.3° N, 101.1° W: paleocoordinates 28.7° N, 66.6° W)
• outcrop-level geographic resolution
When: Euomphaloceras septemseriatum ammonoid zone, Indidura Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)
• STRATIGRAPHIC RELATIONS: From the Indidura Fm, which overlies the Aurora Limestone. AGE: Cenomanian, on the basis of biostratigraphic correlation to better dated Texan lithostratigraphic units, and ammonite biostratigraphy. STRATIGRAPHIC POSITION: From outcrop and float along the Coilopeceras [sp.= Coilopoceras] beds.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, gray limestone
Size class: macrofossils
Preservation: mold/impression
Collected by Kellum; reposited in the UMMP
Collection methods: surface (float),
• COLLECTOR: L. B. Kellum, 1935. REPOSITORY: UMMP.
Primary reference: L. B. Kellum and W. I. Robinson. 1963. Geology of the west-central part of the Sierra de Tlahualilo, Coahuila, Mexico. Papers of the Michigan Academy of Science, Art, and Letters 48:223-261 [A. Hendy/A. Hendy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 88675: authorized by Austin Hendy, entered by Austin Hendy on 17.04.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Metacalycoceras sp." = Calycoceras, "Metoicoceras bosei" = Metoicoceras geslinianum
"Metacalycoceras sp." = Calycoceras Hyatt 1900 ammonite
"Metoicoceras bosei" = Metoicoceras geslinianum d'Orbigny 1841 ammonite | |
Coilopoceras sp. Hyatt 1903 ammonite | |
Bivalvia | |
Pteria aguilerae pearl oyster | |