D.8615, James Ross Island [Santa Marta Fm] (Cretaceous of Antarctica)

Where: Antarctica (63.8° S, 57.8° W: paleocoordinates 61.7° S, 68.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Santa Marta Formation, Campanian (83.6 - 72.1 Ma)

• STRATIGRAPHIC RELATIONS: From the Lachman Crags Mbr of the Santa Marta Fm, which locally overlies the Hidden Lake Fm (Coniacian), and is overlain by the López de Bertodano Fm. AGE: Santonian-Campanian, on the basis of ammonite biostratigraphy; placed in Campanian as from the upper part of the unit. STRATIGRAPHIC POSITION: From unknown position within formation.

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• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

• ENVIRONMENT: Siliciclastic marine setting.
• SPECIFIC LITHOLOGY: Siliciclastic facies. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Collection methods: surface (in situ),

• COLLECTOR: Multiple collectors, including J.A. Crame and M.R.A Thompson. REPOSITORY: Not stated, but presumably British Antarctic Survey and Oxford University Museum (OUM).

Primary reference: P. Doyle. 1990. New records of dimitobelid belemnites from the Cretaceous of James Ross Island, Antarctica. Alcheringa 14:159-175 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 83763: authorized by Austin Hendy, entered by Austin Hendy on 31.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Not exhaustive but inclusive of representative and biostratigraphically important ammonoidea, bivalvia, and other taxa. Other taxa may be present, but were not listed in present biostratigraphic treatment. NOMENCLATURE: Not an authoritative publication, but with fairly modern nomenclature and species-resolution identifications where listed.
Show authors, comments, and common names
Cephalopoda
 Belemnitida - Dimitobelidae
Dimitobelus (Dimitocamax) cf. seymouriensis