Menarandrohy River (Jurassic of Madagascar)

Where: Madagascar (23.7° S, 44.3° E: paleocoordinates 28.8° S, 17.8° E)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: marine; 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 98194: authorized by Wolfgang Kiessling, entered by Uta Merkel on 23.09.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Echinoidea
 Irregularia - Clypeidae
Pygurus joieaudi sea urchin
Pygurus umbrella sea urchin
"Pygurus depressus" = Pygurus (Mepygurus) depressus Agassiz 1847 sea urchin
Rhynchonellata
 Rhynchonellida - Rhynchonellidae
 Rhynchonellida - Cyclothyrididae
"Rhynchonella inconstans" = Torquirhynchia inconstans
"Rhynchonella inconstans" = Torquirhynchia inconstans Sowerby 1821
Bivalvia
 Trigoniida - Myophorelloidae
"Trigonia hispida" = Orthotrigonia hispida
"Trigonia hispida" = Orthotrigonia hispida Kitchin 1900 clam
 Carditida - Astartidae
Astarte sp. Sowerby 1816 clam
 Ostreida - Palaeolophidae
"Alectryonia gregarea" = Actinostreon gregareum
"Alectryonia gregarea" = Actinostreon gregareum Sowerby 1816 oyster
Cephalopoda
 Phylloceratida - Phylloceratidae
Ptychophylloceras feddeni Waagen 1875 ammonite
Calliphylloceras disputabile Zittel 1869 ammonite
 Ammonitida - Oppeliidae
 Ammonitida - Macrocephalitidae
 Ammonitida - Perisphinctidae
"Choffatia aff. subbakeriae" = Choffatia subbackeriae
"Choffatia aff. subbakeriae" = Choffatia subbackeriae d'Orbigny 1850 ammonite