Where: Nuevo Leon, Mexico (26.7° N, 100.0° W: paleocoordinates 28.0° N, 69.0° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Mammites nodosoides ammonoid zone, Agua Nueva Formation, Early/Lower Turonian (93.5 - 89.3 Ma)
• STRATIGRAPHIC RELATIONS: From the Agua Nueva Fm. AGE: Early Turonian, on the basis of ammonoid biostratigraphy; Mammites nodosoides zone. STRATIGRAPHIC POSITION: From 3.84-5.60 m in Vallecillo Quarry.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, concretionary, pyritic limestone and lithified, calcareous marl
Size class: macrofossils
Preservation: mold/impression, concretion
Collected by Ifrim
Collection methods: bulk, surface (in situ),
• COLLECTOR: Ifrim. REPOSITORY: Facultad de Ciencias de la Tierra of the Uni-
•versidad Auto ́ noma de Nuevo Leo ́ n at Linares, Nuevo Leo ́ n (abbreviation: UANL-FCT-VC; VC for Vallecillo)
Primary reference: C. Ifrim and W. Stinnesbeck. 2007. Early Turonian ammonites from Vallecillo, north-eastern Mexico: ttaxonomy, biostratigraphy and palaeobiogeographical significance. Cretaceous Research 28:642-663 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 87879: authorized by Austin Hendy, entered by Austin Hendy on 27.03.2009, edited by Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Thecostraca | |
Stramentum pulchellum Sowerby 1843 barnacle | |
Cephalopoda | |
Ammonoidea indet. ammonite | |
Mammites nodosoides, Watinoceras coloradoense, Pseudaspidoceras pseudonodosoides, Pseudaspidoceras flexuosum
Mammites nodosoides Schlüter 1871 ammonite
Watinoceras coloradoense Henderson 1908 ammonite
Pseudaspidoceras pseudonodosoides Choffat 1898 ammonite
Pseudaspidoceras flexuosum Powell 1963 ammonite | |
Vascoceras sp. Choffat 1898 ammonite |