Andranomantsy I (Jurassic of Madagascar)

Also known as Collignon Gisement 108

Where: Toamasina, Madagascar (12.7° S, 49.4° E: paleocoordinates 22.2° S, 29.4° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Gracilisphinctes progracilis zone, Middle Bathonian (167.7 - 164.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified marl

Size class: macrofossils

Collected by J. de Saint Ours in 1952

Primary reference: M. Collignon. 1958. Atlas des fossiles caractéristiques de Madagascar (Ammonites). Fascicule II (Bathonien, Callovien). Pl. VI-XXXIII. Figs 31-161 [P. Scofield/P. Scofield/P. Scofield]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 234064: authorized by Paul Scofield, entered by Paul Scofield on 15.03.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Tulitidae
Schwandorfia boulangeri n. sp. Collignon 1958 ammonite
 Ammonitida - Stephanoceratidae
Micromphalites saintoursi n. sp. Collignon 1958 ammonite
Clydoniceras madagascariense n. sp. Collignon 1958 ammonite
 Ammonitida - Lytoceratidae
"Thysanolytoceras adeloides" = Lytoceras eudesianum adeloides
"Thysanolytoceras adeloides" = Lytoceras eudesianum adeloides Kudernatsch 1852 ammonite
 Ammonitida - Perisphinctidae
Wagnericeras dietrichi n. sp. Collignon 1958 ammonite
Gracilisphinctes lemoinei n. sp. Collignon 1958 ammonite
Gracilisphinctes arkelli n. sp. Collignon 1958 ammonite
Gracilisphinctes andranomantsyensis n. sp. Collignon 1958 ammonite
 Ammonitida - Oppeliidae
Oxycerites rodoensis n. sp. Collignon 1958 ammonite
Oxycerites besairiei n. sp. Collignon 1958 ammonite
 Phylloceratida - Phylloceratidae
Phylloceras kudernatschi Hauer 1854 ammonite
Ptychophylloceras saintoursi Collignon 1958 ammonite