ammonites
MAD93-18 (SUNY) (Cretaceous of Madagascar)

Where: Mahajanga, Madagascar (15.9° S, 46.6° E: paleocoordinates 29.8° S, 38.4° E)

• coordinate based on political unit

• small collection-level geographic resolution

When: Anembalemba Member (Maevarano Formation), Maastrichtian (70.6 - 65.5 Ma)

• three bonebeds: BB1, BB2, BB3 - which should eventually be separated into distinct collections

• group of beds-level stratigraphic resolution

Environment/lithology: "channel"; sandstone

• "shallow and very broad channel-belt system characterized by an ephemeral and flood-prone discharge regime."

Size class: macrofossils

Preservation: trace

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 Matt Carrano, entered by Matt Carrano on 27.08.2002, edited by Philip Mannion

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)