Mural Limestone, Ninety One Hills (Cretaceous of the United States)

Where: Cochise County, Arizona (31.4° N, 109.9° W: paleocoordinates 31.6° N, 69.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Mural Limestone Formation (Bisbee Group), Albian (113.0 - 100.5 Ma)

• STRATIGRAPHIC RELATIONS: Overlying the Pedregosa Mbr (Albian) of the Lowell Fm (Aptian-Albian). THICKNESS: Note stated. AGE: Albian, based on ammonite and trigoniid biostratigraphy. STRATIGRAPHIC POSITION: Immediately above Bed 1a of the Pedregosa Fm.

• bed-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, gray limestone

• ENVIRONMENT: Contains rudist-reefs. PROVINCE: Pedregosa basin
• SPECIFIC LITHOLOGY: Light-gray limestone, in the lower part bedded; in the upper part massive, with rudist reefs. LITHIFICATION: Lithified, based on facies description, figures and age.

Size class: macrofossils

Reposited in the USNM

• COLLECTOR: A. Stoyanow, assisted by G. Scott, J.B. Reeside, and R.W. Imlay. REPOSITORY: USNM, Washington and U. Texas and Bureau of Economic Geology, Texas.

Primary reference: A. Stoyanow. 1949. Lower Cretaceous stratigraphy in southeastern Arizona. Geological Society of America Memoir 38:1-156 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64983: authorized by Austin Hendy, entered by Austin Hendy on 18.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COMPLETENESS: Not exhaustive, but representative of common and biostratigraphically significant forms. NOMENCLATURE: Authoritative publication for ammonites and bivalvia, and hence these carry species-level names; other taxa often not designated with species-level names.
Show authors, comments, and common names
Foraminifera
 Orbitolinacea - Orbitolinidae
Orbitolina texana
Gastropoda
 Sorbeoconcha - Naticidae
? Lunatia sp.
? Lunatia sp. Gray 1847 moon snail
Bivalvia
 Pectinida - Limidae
Lima muralensis
Lima muralensis Stoyanow 1949 file clam
 Hippuritida - Caprinidae
Caprina sp.
Caprina sp. d'Orbigny 1822 rudist
 Hippuritida - Radiolitidae
? Radiolites sp.
? Radiolites sp. Lamarck 1801 rudist