Where: Mexico (19.4° N, 99.1° W: paleocoordinates 21.9° N, 71.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Mexcala Formation, Coniacian (89.8 - 86.3 Ma)
• formation-level stratigraphic resolution
Environment/lithology: marine; lithified limestone and lithified shale
Primary reference: E. Cabral-Cano, H. R. Lang, and C. G. A. Harrison. 2000. Stratigraphic Assessment of the Arcelia-Teloloapan area, Southern Mexico: Implications for Southern Mexico's Post-Neocomian Tectonic Evolution. Journal of South American Earth Science 13:443-457 [A. Miller/D. Schramm/D. Schramm]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 42274: authorized by Arnold Miller, entered by Danielle Schramm on 27.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Foraminifera | |
Tubothalamea | |
Quinqueloculina sp. d'Orbigny 1826 | |
Pyrgo cf. sp. Defrance 1824 | |
Foraminifera | |
Rotalipora sp. Brotzen 1942 | |
Cephalopoda | |
Peroniceras aff. tricarinatum, Peroniceras cf. subtricarinatun, Peroniceras sp., Barroisiceras cf. alstadenense, Barroisiceras sp.
Peroniceras aff. tricarinatum ammonite
Peroniceras cf. subtricarinatun ammonite
Peroniceras sp. de Grossouvre 1894 ammonite
Barroisiceras cf. alstadenense ammonite
Barroisiceras sp. de Grossouvre 1894 ammonite |