Gate, Bed 12 [Spiti Shale] (Jurassic of India)

Where: India (32.4° N, 78.1° E: paleocoordinates 32.2° S, 45.9° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Spiti Shale Formation, Tithonian (152.1 - 145.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Spiti Shale, which is overlain by the Guimal Sandstone (Berriasian) AGE: Tithonian, on the basis of macrofossil biostratigraphy. STRATIGRAPHIC POSITION: From bed 12, uppermost Spiti Shale.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary shale

• ENVIRONMENT: Siliciclastic marine environment.
• SPECIFIC LITHOLOGY: Concretionary shale. LITHIFICATION: Lithified, based on figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Collection methods: surface (in situ),

• COLLECTOR: Not stated, but presumably D. B. Pathak. REPOSITORY: Not stated, but possibly the Dept of Geology, Banaras Hindu University, India.

Primary reference: D. B. Pathak. 2007. Jurassic/Cretaceous boundary in the Spiti Himilaya, India. Journal of the Paleontological Society of India 52(1):51-57 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 83609: authorized by Austin Hendy, entered by Austin Hendy on 23.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Probably not exhaustive, but comprehensive for ammonoidea. Other taxonomic groups known to be present include belemnoidea. NOMENCLATURE: Not an authoritative publication, but using modern nomenclature and species resolution identifications.
Show authors, comments, and common names
Cephalopoda
 Ammonitida - Olcostephanidae
Spiticeras cf. bulliformis
 Ammonitida - Himalayitidae
Himalayites cf. seidelli
 Ammonitida - Neocomitidae
Blanfordiceras cricki, Kossmatia aff. koeneni, Kossmatia tenuistriata
Blanfordiceras cricki Uhlig 1910 ammonite
 Ammonitida - Perisphinctidae
Virgatosphinctes sp., Virgatosphinctes densiplicatus
Virgatosphinctes sp. Uhlig 1910 ammonite