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
Echinoidea | |
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Polychaeta | |
"Serpula gordialis" = Glomerula serpentina2
"Serpula gordialis" = Glomerula serpentina2 Schlotheim 1820 | |
Cephalopoda | |
"Phylloceras velledae" = Phylloceras (Hypophylloceras) velledae2
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"Ephamulina arctuata" = Epanisoceras2
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Pseudosonneratia aff. steinmanni2, Pseudosonneratia ambigua2, Pseudosonneratia balmensiformis2, Pseudosonneratia madagascariensis2, Pseudosonneratia sakalava2, Pseudosonneratia subiserensis2, Sonneratia aff. tenuis2
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"Eotetragonites umbilicostriatus" = Eogaudryceras (Eotetragonites) umbilicostriatus2, "Paragaudryceras sakalavum" = Anagaudryceras2, Gaudryceras shimizui2, "Argonauticeras besairiei" = Argonauticeras belliseptatum2, Kossmatella aff. marut2, Jauberticeras besairiei2
"Eotetragonites umbilicostriatus" = Eogaudryceras (Eotetragonites) umbilicostriatus2 Collignon 1949 ammonite | |
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 cf. aegoceratoides" = Eubrancoceras aegoceratoides2
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"Brancoceras carinatum" = Brancoceras (Brancoceras) carinatum2, "Brancoceras cf. helcion" = Brancoceras (Brancoceras) helcion2, "Brancoceras rotundatum" = Parabrancoceras rotundatum2, "Brancoceras besairiei" = Parabrancoceras besairiei2, "Brancoceras aenigmaticum" = Parabrancoceras aenigmaticum2, "Brancoceras compressum" = Parabrancoceras compressum2, "Brancoceras humile" = Parabrancoceras humile2, "Brancoceras capricornusimile" = Parabrancoceras capricornusimile2
"Brancoceras cf. helcion" = Brancoceras (Brancoceras) helcion2 Reynes 1876 ammonite misspelled as B. cf. helcyon
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"Desmoceras latidorsatum" = Desmoceras (Desmoceras) latidorsatum2, Puzosia quenstedti2, "Beudanticeras hourcqi" = Roberticeras hourcqi2, "Beudanticeras albense" = Roberticeras albense2, Uhligella dubia2, Uhligella balmensis2
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Anisoceras trituberculatum2, Protanisoceras breistrofferi2, Protanisoceras hourcqi2, Protanisoceras superbum2, Protanisoceras besairiei2, Metahamites gignouxi2, Metahamites spathi2, Metahamites aff. sablieri2, Metahamites besairiei2
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"Idiohamites aff. dorsetensis" = Mariella dorsetensis2
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Douvilleiceras benonae2, Douvilleiceras aff. inaequinodum2, Douvilleiceras monile2, "Douvilleiceras pseudinaequinodum" = Douvilleiceras variabile2, "Douvilleiceras mamillatum" = Douvilleiceras mammillatum2
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Gastropoda | |
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"Gyrodes aff. tenellus" = Gyrodes (Gyrodes) tenellus2
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"Solarium basseae" = Trochus (Solarium)2
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Bivalvia | |
Panopea gurgitis2, Panopea carteroni2, Panopea triangula2, Panopea submandibula2, Panopea inaequivalvis2, Panopea intermedia2
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"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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Rhynchonellata | |
"Terebratula obesa" = Concinnithyris obesa2
"Terebratula obesa" = Concinnithyris obesa2 Sowerby 1823 | |
Malacostraca | |
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Anthozoa | |
Aplopsammia collignoni n. gen. n. sp., Calostylopsis sakalavensis n. gen. n. sp.
Aplopsammia collignoni n. gen. n. sp. Alloiteau 1958 stony coral
Calostylopsis sakalavensis n. gen. n. sp. Alloiteau 1958 stony coral | |
Trochocyathus sp.1, Trochocyathus antsiranensis1, "Paratrochocyathus collignoni n. gen. n. sp." = Trochocyathus collignoni, "Protrochocyathus subarcuatus n. sp." = Trochocyathus subarcuatus, Stylocyathus crassiseptus n. sp.
"Paratrochocyathus collignoni n. gen. n. sp." = Trochocyathus collignoni Alloiteau 1958 stony coral
"Protrochocyathus subarcuatus n. sp." = Trochocyathus subarcuatus Alloiteau 1958 stony coral
Stylocyathus crassiseptus n. sp. Alloiteau 1958 stony coral | |
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