Antsiareza (Jurassic of Madagascar)

Where: Madagascar (18.6° S, 44.7° E: paleocoordinates 24.9° S, 21.5° 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 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 98165: authorized by Wolfgang Kiessling, entered by Uta Merkel on 22.09.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Phylloceratida - Phylloceratidae
Ptychophylloceras feddeni, Phylloceras subobtusum, Phylloceras kudernatschi, Holcophylloceras mediterraneum, Calliphylloceras disputabile
Ptychophylloceras feddeni Waagen 1875 ammonite
Phylloceras kudernatschi Hauer 1854 ammonite
Holcophylloceras mediterraneum Neumayr 1871 ammonite
Calliphylloceras disputabile Zittel 1869 ammonite
 Ammonitida - Perisphinctidae
Choffatia baluchistanensis, "Choffatia cf. balinensis" = Homoeoplanulites balinensis
Choffatia baluchistanensis Noetling 1896 ammonite
"Choffatia cf. balinensis" = Homoeoplanulites balinensis Neumayr 1871 ammonite
 Ammonitida - Lytoceratidae
"Thysanolytoceras adeloides" = Lytoceras eudesianum adeloides
"Thysanolytoceras adeloides" = Lytoceras eudesianum adeloides Kudernatsch 1852 ammonite
 Ammonitida - Macrocephalitidae
Indocephalites sp., Pleurocephalites aff. folliformis, Pleurocephalites ex gr. elephantinus, Macrocephalites chariensis
 Ammonitida - Tulitidae
"Kheraiceras cosmopolita" = Bullatimorphites (Kheraiceras)
"Kheraiceras cosmopolita" = Bullatimorphites (Kheraiceras) ammonite
 Ammonitida - Oppeliidae
Jeannetia hourcqi, Alcidia aff. obsoleta
Jeannetia hourcqi Collignon 1958 ammonite
 Nautilida - Paracenoceratidae
Paracenoceras calloviense
Paracenoceras calloviense Oppel 1858 nautiloid
 Belemnitida - Belemnopseidae
Belemnopsis calloviensis
Bivalvia
 Pholadomyida - Pholadomyidae
Pholadomya sp.
Pholadomya sp. Sowerby 1823 clam
 Carditida - Astartidae
Astarte sp.
Astarte sp. Sowerby 1816 clam
 Pectinida - Pectinoidae
Pecten sp., Spondylus sp.
Pecten sp. Müller 1776 scallop
Spondylus sp. Linnaeus 1758 scallop
 Ostreida - Palaeolophidae
"Alectryonia gregarea" = Actinostreon gregareum, "Lopha marshii" = Actinostreon marshi
"Alectryonia gregarea" = Actinostreon gregareum Sowerby 1816 oyster
"Lopha marshii" = Actinostreon marshi Sowerby 1814 oyster
 Ostreida - Gryphaeidae
"Exogyra nana" = Nanogyra (Nanogyra) nana
"Exogyra nana" = Nanogyra (Nanogyra) nana Sowerby 1822 oyster
 Arcida - Arcidae
Arca sp.
Arca sp. Linnaeus 1758 ark
Rhynchonellata
 Terebratulida - Eudesiidae
Flabellothyris dichotoma
 Terebratulida - Terebratulidae
Terebratula sp.
Terebratula sp. Müller 1776