Mamakiala River (Jurassic of Madagascar)

Where: Madagascar (22.1° S, 44.5° E: paleocoordinates 27.6° S, 19.0° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Middle Callovian (164.7 - 161.2 Ma)

• unit 12

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, sandy marl

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 98183: authorized by Wolfgang Kiessling, entered by Uta Merkel on 23.09.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Trigoniida - Trigoniidae
Trigonia sp.
Trigonia sp. Bruguière 1789 clam
 Pholadomyida - Pholadomyidae
Goniomya sp.
Goniomya sp. Agassiz 1842 clam
 Pholadida - Ceratomyidae
"Ceratomya sp." = Ceratomya, "Ceromya sp." = Ceratomya
"Ceratomya sp." = Ceratomya Sandberger 1864 clam
"Ceromya sp." = Ceratomya Sandberger 1864 clam
Cephalopoda
 Ammonitida - Perisphinctidae
"Hubertoceras aff. arcicosta" = Obtusicostites, Obtusicostites cf. devi, "Obtusicostites obtusicosta" = Obtusicostites obtusicosta, "Obtusicostites aff. waageni" = Obtusicostites obtusicosta, "Kinkeliniceras indra" = Kinkeliniceras kinkelini
"Hubertoceras aff. arcicosta" = Obtusicostites ammonite
Obtusicostites cf. devi Spath 1931 ammonite
"Obtusicostites obtusicosta" = Obtusicostites obtusicosta Waagen 1875 ammonite
"Obtusicostites aff. waageni" = Obtusicostites obtusicosta Waagen 1875 ammonite
"Kinkeliniceras indra" = Kinkeliniceras kinkelini Dacque 1910 ammonite
 Phylloceratida - Phylloceratidae
Calliphylloceras sp., Holcophylloceras sp., Ptychophylloceras euphylum
Calliphylloceras sp. Spath 1927 ammonite
Holcophylloceras sp. Spath 1927 ammonite