Ambarimaninga (Cretaceous of Madagascar)

Where: Mahajanga, Madagascar (16.5° S, 46.0° E: paleocoordinates 40.3° S, 31.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Albian (113.0 - 100.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified marl

• associated fauna: ammonites and Toxaster

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: J. Alloiteau. 1958. Monographie des madreporaires fossiles de Madagascar [Monograph of fossil corals from Madagascar]. Annales Geologiques de Madagascar 25:1-218 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86497: authorized by Wolfgang Kiessling, entered by Uta Merkel on 04.02.2009, edited by Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda -
Rhynchonellata
 Terebratulida - Gibbithyrididae
"Terebratula obesa" = Concinnithyris obesa2
"Terebratula obesa" = Concinnithyris obesa2 Sowerby 1823
 Terebratulida - Terebratulidae
 Rhynchonellida - Rhynchonellidae
Polychaeta
 Sabellida - Sabellidae
"Serpula gordialis" = Glomerula serpentina2
"Serpula gordialis" = Glomerula serpentina2 Schlotheim 1820
 Sabellida - Serpulidae
Bivalvia
 Arcida - Arcidae
 Arcida - Glycymerididae
"Trigonoarca aff. elongata" = Trigonarca2
"Trigonoarca aff. elongata" = Trigonarca2 clam
 Pectinida - Pectinoidae
Neithea quinquecostata2 Sowerby 1814 scallop
"Neithea cf. aequicostata" = Neithea (Neithea) aequicostata2 Lamarck 1819 scallop
 Ostreida - Gryphaeidae
"Ostrea canaliculata" = Gryphaeostrea canaliculata2
"Ostrea canaliculata" = Gryphaeostrea canaliculata2 Sowerby 1813 oyster
 Ostreida - Ostreidae
"Ostrea besairiei" = Gyrostrea besairiei2
"Ostrea besairiei" = Gyrostrea besairiei2 Collignon 1949 oyster
 Ostreida - Malleidae
 Ostreida - Pinnidae
 Mytilida - Mytilidae
"Modiola rotundata" = Modiolus2, "Modiola subcapitata" = Modiolus2, "Modiola roedereri" = Modiolus2, "Modiola recta" = Modiolatus rectus2
"Modiola rotundata" = Modiolus2 mussel
"Modiola subcapitata" = Modiolus2 mussel
"Modiola roedereri" = Modiolus2 mussel
"Modiola recta" = Modiolatus rectus2 Conrad 1837 mussel
 Carditida - Astartidae
 Pholadida - Corbulidae
 Cardiida - Arcticidae
Veniella etheridgei2 clam
var. rennei
 Cardiida - Anatinellidae
 Cardiida - Cardiidae
 Hiatellida - Hiatellidae
 Lucinida - Lucinidae
Gastropoda
 Ptenoglossa - Epitoniidae
Scala franciscae2 wentletrap
Scala odilae2 wentletrap
 Neogastropoda - Conidae
Conus primitivus2 cone shell
 Stromboidea - Tylostomatidae
 Stromboidea - Aporrhaidae
 Naticoidea - Naticidae
"Gyrodes aff. tenellus" = Gyrodes (Gyrodes) tenellus2
"Gyrodes aff. tenellus" = Gyrodes (Gyrodes) tenellus2 Stoliczka 1868 moon snail
 Sorbeoconcha - Planaxidae
 Sorbeoconcha - Cerithiidae
Cerithium coxi2 cerith snail
Cerithium delpeyae2 cerith snail
Cerithium subspinosum2 cerith snail
 Sorbeoconcha - Metacerithiidae
 Heterostropha - Ringiculidae
 Architectonicoidea - Architectonicidae
 Pleurotomariida - Pleurotomariidae
Leptomaria magneti2 Collignon 1949 snail
 Vetigastropoda - Discohelicidae
Delpeya cottreaui2 Collignon 1949 snail
 Seguenzioidea - Calliotropidae
Cephalopoda
 Ammonitida - Douvilleiceratidae
Douvilleiceras monile2 Sowerby 1836 ammonite
"Douvilleiceras mamillatum" = Douvilleiceras mammillatum2 Schlotheim 1813 ammonite
 Ammonitida -
 Ammonitida - Anisoceratidae
 Ammonitida - Hamitidae
 Ammonitida - Turrilitidae
"Idiohamites aff. dorsetensis" = Mariella dorsetensis2
"Idiohamites aff. dorsetensis" = Mariella dorsetensis2 Spath 1926 ammonite
 Phylloceratida - Phylloceratidae
"Phylloceras velledae" = Phylloceras (Hypophylloceras) velledae2
"Phylloceras velledae" = Phylloceras (Hypophylloceras) velledae2 Michelin 1834 ammonite
 Ammonoidea -
 Ammonoidea - Desmoceratidae
"Desmoceras latidorsatum" = Desmoceras (Desmoceras) latidorsatum2, "Paracleoniceras besairiei" = Aioloceras2, "Paracleoniceras ptychitiforme" = Aioloceras2, Uhligella dubia2, Uhligella balmensis2, Beudanticeras albense2, Beudanticeras hourcqi2, Puzosia quenstedti2
"Desmoceras latidorsatum" = Desmoceras (Desmoceras) latidorsatum2 Michelin 1838 ammonite
"Paracleoniceras besairiei" = Aioloceras2 ammonite
"Paracleoniceras ptychitiforme" = Aioloceras2 ammonite
Uhligella dubia2 ammonite
Puzosia quenstedti2 Parona and Bonarelli 1897 ammonite
var. breistrofferi
 Ammonoidea - Silesitidae
 Ammonoidea - Hoplitidae
 Ammonoidea - Gaudryceratidae
Gaudryceras shimizui2, Jauberticeras besairiei2, "Paragaudryceras sakalavum" = Anagaudryceras2, "Eotetragonites umbilicostriatus" = Eogaudryceras (Eotetragonites) umbilicostriatus2
"Paragaudryceras sakalavum" = Anagaudryceras2 ammonite
"Eotetragonites umbilicostriatus" = Eogaudryceras (Eotetragonites) umbilicostriatus2 Collignon 1949 ammonite
 Ammonoidea - Tetragonitidae
Kossmatella aff. marut2, "Argonauticeras besairiei" = Argonauticeras belliseptatum2
Kossmatella aff. marut2 Stoliczka 1865 ammonite
"Argonauticeras besairiei" = Argonauticeras belliseptatum2 Anthula 1899 ammonite
 Ammonoidea - Lytoceratidae
"Ammonoceratites cf. mahadeva" = Lytoceras2
"Ammonoceratites cf. mahadeva" = Lytoceras2 ammonite
 Ammonoidea - Brancoceratidae
"Brancoceras cf. helcion" = Brancoceras (Brancoceras) helcion2, "Brancoceras carinatum" = Brancoceras (Brancoceras) carinatum2, "Brancoceras besairiei" = Parabrancoceras besairiei2, "Brancoceras compressum" = Parabrancoceras compressum2, "Brancoceras rotundatum" = Parabrancoceras rotundatum2, "Brancoceras capricornusimile" = Parabrancoceras capricornusimile2, "Brancoceras aenigmaticum" = Parabrancoceras aenigmaticum2, "Brancoceras humile" = Parabrancoceras humile2
"Brancoceras cf. helcion" = Brancoceras (Brancoceras) helcion2 Reynes 1876 ammonite
misspelled as B. cf. helcyon
"Brancoceras carinatum" = Brancoceras (Brancoceras) carinatum2 Collignon 1949 ammonite
"Brancoceras besairiei" = Parabrancoceras besairiei2 Collignon 1949 ammonite
"Brancoceras compressum" = Parabrancoceras compressum2 Collignon 1949 ammonite
"Brancoceras rotundatum" = Parabrancoceras rotundatum2 Collignon 1949 ammonite
"Brancoceras capricornusimile" = Parabrancoceras capricornusimile2 Collignon 1949 ammonite
"Brancoceras aenigmaticum" = Parabrancoceras aenigmaticum2 Collignon 1949 ammonite
"Brancoceras humile" = Parabrancoceras humile2 Collignon 1949 ammonite
 Ammonoidea - Lyelliceratidae
"Brancoceras cf. aegoceratoides" = Eubrancoceras aegoceratoides2
"Brancoceras cf. aegoceratoides" = Eubrancoceras aegoceratoides2 Steinmann 1881 ammonite
 Ammonoidea - Cleoniceratidae
 Nautilida - Nautilidae
Cymatoceras sakalavum2 Collignon 1949 nautiloid
Echinoidea
 Spatangoida - Toxasteridae
Douvillaster hourcqi2 heart urchin
Toxaster gaudryi2 heart urchin
Toxaster sp.2 Agassiz 1839 heart urchin
 Spatangoida -
Epiaster jeanneti2 heart urchin
Epiaster besairiei2 heart urchin
 Spatangoida - Hemiasteridae
 Euechinoidea - Pseudodiadematidae
Anthozoa
 Scleractinia - Dendrophylliidae
Calostylopsis sakalavensis n. gen. n. sp., Aplopsammia collignoni n. gen. n. sp.
Calostylopsis sakalavensis n. gen. n. sp. Alloiteau 1958 stony coral
Aplopsammia collignoni n. gen. n. sp. Alloiteau 1958 stony coral
 Scleractinia - Caryophylliidae
Stylocyathus crassiseptus n. sp., Trochocyathus sp.1, "Paratrochocyathus collignoni n. gen. n. sp." = Trochocyathus collignoni, "Protrochocyathus subarcuatus n. sp." = Trochocyathus subarcuatus, Trochocyathus antsiranensis1
Stylocyathus crassiseptus n. sp. Alloiteau 1958 stony coral
Trochocyathus sp.1 Milne-Edwards and Haime 1848 stony coral
"Paratrochocyathus collignoni n. gen. n. sp." = Trochocyathus collignoni Alloiteau 1958 stony coral
"Protrochocyathus subarcuatus n. sp." = Trochocyathus subarcuatus Alloiteau 1958 stony coral
Trochocyathus antsiranensis1 Collignon 1931 stony coral
 Scleractinia - Guyniidae