Where: Hidalgo, Mexico (20.3° N, 98.2° W: paleocoordinates 3.7° N, 47.2° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Bucklandi ammonoid zone, Huayacocotla Formation (Huayacocotla Group), Early/Lower Sinemurian (196.5 - 189.6 Ma)
Environment/lithology: basinal (siliceous); lithified sandstone
Size class: macrofossils
Preservation: cast, mold/impression
Collection methods: surface (in situ)
• the collections of the Instituto de Geología of Mexico (UNAM).
Primary reference: C. Meister, J. Blau, J.-L. Dommergues, R. Schlatter, R. Schmidt-Effing and K. Burk. 2005. Ammonites from the Lower Jurassic (Sinemurian) of Tenango de Doria (Sierra Madre Oriental, Mexico). Part IV: Biostratigraphy, palaeobiogeography and taxonomic addendum. Revue de Paléobiologie 24(1):365-384 [J. Pálfy/D. Juhász]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 208368: authorized by József Pálfy, entered by Dorina Juhász on 01.04.2020
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Arnioceras aff. oppeli, Arnioceras sp., Arnioceras cf. ceratitoides, Arnioceras miserabile, "Metophioceras anaberthae" = Vermiceras, "Metophioceras molineroi n. sp." = Vermiceras, "Metophioceras sp." = Vermiceras
Arnioceras aff. oppeli ammonite
Arnioceras sp. Hyatt 1867 ammonite
Arnioceras miserabile Quendstedt 1858 ammonite
"Metophioceras anaberthae" = Vermiceras ammonite
"Metophioceras molineroi n. sp." = Vermiceras ammonite
"Metophioceras sp." = Vermiceras ammonite | |
Juraphyllites nardii Meneghini 1853 ammonite | |
Partschiceras sp. Fucini 1920 ammonite
Calliphylloceras sp. Spath 1927 ammonite |