Loc. 42, Befamonto, Mitsinjo-Namakia (Cretaceous of Madagascar)

Where: Madagascar (15.9° S, 45.9° E: paleocoordinates 39.5° S, 26.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Aconeceras nisus - Melchiorites melchioris ammonoid zone, Late/Upper Aptian (122.5 - 113.0 Ma)

• STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit. AGE: Late Aptian; Aconeceras nisus and Melchiorites mechioris zone. STRATIGRAPHIC POSITION: From unknown position within local section.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

• SPECIFIC LITHOLOGY: Not stated in text. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Collignon in 1953

Collection methods: surface (in situ),

• COLLECTOR: M. Collignon, 1953. REPOSITORY: Not stated in text.

Primary reference: M. Collignon. 1962. Atlas des fossiles caractéristiques de Madagascar (Ammonites). Fascicule IX (Aptien). Service Géologique Tananarive 1-64 [A. Hendy/A. Hendy/L. Bulot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 83993: authorized by Austin Hendy, entered by Austin Hendy on 14.09.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for Ammonoidea. Other groups may be present, but aren't reported in this publication. NOMENCLATURE: Somewhat antiquated publication, but authoritative, and with species-resolution identifications.
Show authors, comments, and common names
Cephalopoda
 Ammonitida - Oppeliidae
Aconeceras nisoides, Sanmartinoceras (Sinzovia) trautscholdi
Aconeceras nisoides Sarasin 1893 ammonite