Astieria neohispanica bed- Localities near Cerro del Toboso, Sierra de Symón (Cretaceous of Mexico)

Where: Durango, Mexico (24.8° N, 102.6° W: paleocoordinates 22.2° N, 55.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Valanginian (139.8 - 132.9 Ma)

• STRATIGRAPHIC RELATIONS: From unnamed lithostratigraphic unit. AGE: Valanginian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From horizonte con Astieria neohispanica.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

• ENVIRONMENT: Unknown.
• SPECIFIC LITHOLOGY: Unknown. LITHIFICATION: Lithified on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Bose

Collection methods: surface (in situ),

• COLLECTOR: Böse. REPOSITORY: Museo de Paleontologia del Instituto de Geologia.

Primary reference: E. Böse. 1923. Algunas faunas cretácias de Zacatecas, Durango y Guerrero. Boletín del Instituto Géologica de México 42:1-219 [A. Hendy/A. Hendy/L. Bulot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87609: authorized by Austin Hendy, entered by Austin Hendy on 20.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoidea. NOMENCLATURE: Authoritative publication, with somewha antiquated nomenclature, but with species-resolution identifications.
Show authors, comments, and common names
Cephalopoda
 Ammonitida - Olcostephanidae
"Astieria cf. astieri" = Olcostephanus astierianus, Astieria neohispanica
"Astieria cf. astieri" = Olcostephanus astierianus d'Orbigny 1840 ammonite
Astieria neohispanica Böse 1923 ammonite