Where: Coahuila de Zaragoza, Mexico (26.4° N, 103.3° W: paleocoordinates 25.3° N, 64.6° W)
• outcrop-level geographic resolution
When: Aurora Limestone Formation, Albian (113.0 - 100.5 Ma)
• STRATIGRAPHIC RELATIONS: From the Aurora Limestone, for which lithostratigraphic relationships are not discussed AGE: Albian, on the basis of biostratigraphic correlation to better dated Texan lithostratigraphic units. STRATIGRAPHIC POSITION: From Lima wacoensis quadrangularis zone; unknown position within the formation.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified limestone
Size class: macrofossils
Preservation: mold/impression
Collected by Kellum in 1953; reposited in the UMMP
Collection methods: surface (float), surface (in situ),
• COLLECTOR: Kellum, 1953. REPOSITORY: UMMP.
Primary reference: L. B. Kellum. 1956. Cretaceous invertebrates of the Aurora Limestone. Papers of the Michigan Academy of Science, Arts, and Letters 41:205-231 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 88634: authorized by Austin Hendy, entered by Austin Hendy on 16.04.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Budaiceras mexicanum" = Budaiceras hyatti
"Budaiceras mexicanum" = Budaiceras hyatti Shattuck 1903 ammonite | |
Gastropoda | |
? Turbo sp. Linnaeus 1758 snail | |
"Pleurotomaria austinensis" = Pleurotomaria (Leptomaria) austinensis
"Pleurotomaria austinensis" = Pleurotomaria (Leptomaria) austinensis Shumard 1861 snail | |
Turritella aff. leonensis turret shell
Turritella sp. Lamarck 1799 turret shell | |
? Aporrhais sp. da Costa 1778 snail | |
Bivalvia | |
Lima cf. elpasensis file clam | |
Pecten sp., "Pecten texanus" = Camptonectes virgatus
Pecten sp. Müller 1776 scallop
"Pecten texanus" = Camptonectes virgatus Nilsson 1827 scallop | |
Pholadomya sp. Sowerby 1823 clam
Homomya sp. Agassiz 1843 clam | |
Eoradiolites aff. davidsoni rudist | |
Echinoidea | |
Enallaster texanus Roemer 1849 heart urchin | |
? Hemiaster calvani heart urchin |