Bekoratsaka (Jurassic of Madagascar)

Where: Madagascar (16.1° S, 47.5° E: paleocoordinates 24.4° S, 25.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Early/Lower Callovian (164.7 - 161.2 Ma)

• unit 2, 1 m thick

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, argillaceous 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 98122: authorized by Wolfgang Kiessling, entered by Uta Merkel on 21.09.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Rhynchonellida - Cyclothyrididae
"Rhynchonella pseudoinconstans" = Torquirhynchia pseudoinconstans
"Rhynchonella pseudoinconstans" = Torquirhynchia pseudoinconstans Kitchin 1900
Bivalvia
 Pectinida - Limidae
Lima impressa file clam
 Pholadida - Ceratomyidae
"Ceromya cf. striata" = Ceratomya
"Ceromya cf. striata" = Ceratomya clam
 Pholadomyida - Pholadomyidae
Cephalopoda
 Ammonitida - Macrocephalitidae
 Ammonitida - Perisphinctidae
 Phylloceratida - Phylloceratidae
Holcophylloceras mediterraneum Neumayr 1871 ammonite
 Ammonoidea -
 Nautilida - Paracenoceratidae
"Nautilus cf. giganteus" = Paracenoceras giganteum
"Nautilus cf. giganteus" = Paracenoceras giganteum d'Orbigny 1842 nautiloid