Where: Mahajanga, Madagascar (15.9° S, 46.6° E: paleocoordinates 30.1° S, 38.4° E)
• coordinate based on political unit
• small collection-level geographic resolution
When: Anembalemba Member (Maevarano Formation), Maastrichtian (72.1 - 66.0 Ma)
• three bonebeds: BB1, BB2, BB3 - which should eventually be separated into distinct collections
• group of beds-level stratigraphic resolution
Environment/lithology: "channel"; sandstone
Size class: macrofossils
Preservation: trace
Collected by D. Krause & crews in 1993, 1995, 1997, 1999, 2001, 2004, 2007; reposited in the FMNH
Collection methods: quarrying, mechanical,
• Faunal list from formation includes "fishes, frogs, turtles, snakes, lizards, crocodiles, sauropod and non-avian theropod dinosaurs, and mammals", but these are certainly not all from site MAD 93-18. The site is productive and does contain many other taxa, but these were collected at other times, and are not listed in this paper - other papers need to be consulted.
Primary reference: C. A. Forster, L. M. Chiappe, D. W. Krause and S. D. Sampson. 1996. The first Cretaceous bird from Madagascar. Nature 382:532-535 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 25074: authorized by Matthew Carrano, entered by Matthew Carrano on 27.08.2002, edited by Philip Mannion
Creative Commons license: CC BY (attribution)
Taxonomic list
Pisces | |
"Pisces indet." = Osteichthyes8
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Reptilia | |
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Simosuchus clarki5 Buckley et al. 2000 pug-nosed crocodile FMNH PR 2824 (nearly complete fifth? cervical vertebra) and UA 9753 (nearly complete right femur)
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Rapetosaurus krausei1 Curry Rogers and Forster 2001 sauropod FMNH PR 2342, UA 9331; 2 skulls and 1 skeleton & osteoderms
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Aves | |
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Reptilia | |
"? Rahonavis ostromi" = Rahonavis ostromi7 Forster et al. 1998 maniraptoran FMNH PA 746, UA 9604; "Humeral Taxon B"
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"Majungatholus atopus" = Majungasaurus crenatissimus10
"Majungatholus atopus" = Majungasaurus crenatissimus10 Depéret 1896 ceratosaur FMNH PR 2294, 2295, 2423, 2426, 2428, 2433, 2434
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Masiakasaurus knopfleri n. gen. n. sp.9
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Mammalia | |
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