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: Ambarimaninga Formation, Albian (113.0 - 100.5 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; lithified marl
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
Anthozoa | |
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 | |
Trochocyathus sp.1, Trochocyathus antsiranensis1, "Protrochocyathus subarcuatus n. sp." = Trochocyathus subarcuatus, "Paratrochocyathus collignoni n. gen. n. sp." = Trochocyathus collignoni, Stylocyathus crassiseptus n. sp.
"Protrochocyathus subarcuatus n. sp." = Trochocyathus subarcuatus Alloiteau 1958 stony coral
"Paratrochocyathus collignoni n. gen. n. sp." = Trochocyathus collignoni Alloiteau 1958 stony coral
Stylocyathus crassiseptus n. sp. Alloiteau 1958 stony coral | |
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Echinoidea | |
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Rhynchonellata | |
"Terebratula obesa" = Concinnithyris obesa2
"Terebratula obesa" = Concinnithyris obesa2 Sowerby 1823 | |
Polychaeta | |
"Serpula gordialis" = Glomerula serpentina2
"Serpula gordialis" = Glomerula serpentina2 Schlotheim 1820 | |
Bivalvia | |
"Modiola recta" = Modiolatus rectus2, "Modiola rotundata" = Modiolus2, "Modiola subcapitata" = Modiolus2, "Modiola roedereri" = Modiolus2
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"Trigonoarca aff. elongata" = Trigonarca2
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Panopea gurgitis2, Panopea carteroni2, Panopea triangula2, Panopea submandibula2, Panopea inaequivalvis2, Panopea intermedia2
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Cephalopoda | |
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"Phylloceras velledae" = Phylloceras (Hypophylloceras) velledae2
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Douvilleiceras benonae2, Douvilleiceras monile2, "Douvilleiceras mamillatum" = Douvilleiceras mammillatum2, Douvilleiceras aff. inaequinodum2, "Douvilleiceras pseudinaequinodum" = Douvilleiceras variabile2
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"Idiohamites aff. dorsetensis" = Mariella dorsetensis2
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Protanisoceras breistrofferi2, Protanisoceras hourcqi2, Protanisoceras superbum2, Protanisoceras besairiei2, Anisoceras trituberculatum2, Metahamites gignouxi2, Metahamites spathi2, Metahamites aff. sablieri2, Metahamites besairiei2
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"Ephamulina arctuata" = Epanisoceras2
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"Argonauticeras besairiei" = Argonauticeras belliseptatum2, "Paragaudryceras sakalavum" = Anagaudryceras2, "Eotetragonites umbilicostriatus" = Eogaudryceras (Eotetragonites) umbilicostriatus2, Gaudryceras shimizui2, Kossmatella aff. marut2, Jauberticeras besairiei2
"Eotetragonites umbilicostriatus" = Eogaudryceras (Eotetragonites) umbilicostriatus2 Collignon 1949 ammonite | |
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"Desmoceras latidorsatum" = Desmoceras (Desmoceras) latidorsatum2, Uhligella dubia2, Uhligella balmensis2, "Beudanticeras albense" = Roberticeras albense2, "Beudanticeras hourcqi" = Roberticeras hourcqi2, Puzosia quenstedti2
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Sonneratia aff. tenuis2, Pseudosonneratia aff. steinmanni2, Pseudosonneratia ambigua2, Pseudosonneratia balmensiformis2, Pseudosonneratia madagascariensis2, Pseudosonneratia sakalava2, Pseudosonneratia subiserensis2
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"Brancoceras cf. aegoceratoides" = Eubrancoceras aegoceratoides2
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Lemuroceras aburense2, Lemuroceras spathi2, Lemuroceras indicum2, Lemuroceras subindicum2, Lemuroceras crassum2, Lemuroceras ambarimaningaense2, Lemuroceras sitampikyense2, Lemuroceras besairiei2, Lemuroceras transiens2, Cleoniceras madagascariense2, Moretella dubia2, Moretella moreti2, Moretella balmensiformis2, Moretella ambigua2, Moretella subquadrata2, Moretella undata2, Moretella aff. jachromensis2
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"Brancoceras carinatum" = Brancoceras (Brancoceras) carinatum2, "Brancoceras cf. helcion" = Brancoceras (Brancoceras) helcion2, "Brancoceras compressum" = Parabrancoceras compressum2, "Brancoceras besairiei" = Parabrancoceras besairiei2, "Brancoceras humile" = Parabrancoceras humile2, "Brancoceras rotundatum" = Parabrancoceras rotundatum2, "Brancoceras aenigmaticum" = Parabrancoceras aenigmaticum2, "Brancoceras capricornusimile" = Parabrancoceras capricornusimile2
"Brancoceras cf. helcion" = Brancoceras (Brancoceras) helcion2 Reynes 1876 ammonite misspelled as B. cf. helcyon
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Gastropoda | |
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"Solarium basseae" = Trochus (Solarium)2
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"Gyrodes aff. tenellus" = Gyrodes (Gyrodes) tenellus2
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Malacostraca | |
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