Sofia River (Cretaceous of Madagascar)

Where: Madagascar (15.5° S, 47.6° E: paleocoordinates 39.9° S, 31.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Early/Lower Albian (112.0 - 109.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified marl and lithified limestone

Size class: macrofossils

Primary reference: H. Besairie and M. Collignon. 1972. Geologie de Madagascar I. Les Terrains Sedimentaires. Annales Geologiques de Madagascar 35:1-463 [A. Rees/A. Rees]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 98226: authorized by Wolfgang Kiessling, entered by Uta Merkel on 27.09.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Polychaeta
 Sabellida - Serpulidae
Bivalvia
 Cardiida - Cardiidae
Cephalopoda
 Nautilida - Nautilidae
Cymatoceras sakalavum Collignon 1949 nautiloid
 Ammonitida - Douvilleiceratidae
"Douvilleiceras mamillatum" = Douvilleiceras mammillatum, "Douvilleiceras orbignyi" = Douvilleiceras inaequinodum
"Douvilleiceras mamillatum" = Douvilleiceras mammillatum Schlotheim 1813 ammonite
"Douvilleiceras orbignyi" = Douvilleiceras inaequinodum Quenstedt 1849 ammonite
 Ammonitida - Beudanticeratidae
Beudanticeras sp. Hitzell 1902 ammonite
 Ammonitida - Desmoceratidae
"Desmoceras latidorsatum" = Desmoceras (Desmoceras) latidorsatum
"Desmoceras latidorsatum" = Desmoceras (Desmoceras) latidorsatum Michelin 1838 ammonite
Gastropoda
 Vetigastropoda - Discohelicidae