Where: Madagascar (16.1° S, 46.6° E: paleocoordinates 39.9° S, 27.5° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Acanthoplites bigoureti ammonoid zone, Late/Upper Aptian (122.5 - 112.0 Ma)
• STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit. AGE: Late Aptian; Acanthoplites bigoureti zone. STRATIGRAPHIC POSITION: From unknown position within local section.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified lithology not reported
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 83998: authorized by Austin Hendy, entered by Austin Hendy on 14.09.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Ptychoceras cf. puzosi ammonite | |
Heteroceras (Argvethites) vohimaranitraensis n. sp. Collignon 1962 ammonite | |
Colombiceras strangulatum n. sp. Collignon 1962 ammonite
Acanthoplites belohasifakaensis Collignon 1962 ammonite |