| 词条 | Ankarafantsika Formation |
| 释义 |
| name = Ankarafantsika Formation | image = | caption = | type = Geological formation | period = Cenomanian | age = Cenomanian | prilithology = Sandstone | otherlithology = | namedfor = Ankarafantsika National Park | namedby = | region = Boeny, Mahajanga Province | country = {{MAD}} | coordinates = {{coord|16.4|S|46.9|E|display=inline,title}} | paleocoordinates = {{coord|37.8|S|36.6|E|display=inline}} | unitof = | subunits = | underlies = Basalt | overlies = | thickness = | extent = Mahajanga Basin | area = | map = {{Location map+ | Madagascar | relief = 1 | width = 160 | float = center | caption = Location of the formation in Madagascar | places = | lat_deg = -16.4 | lon_deg = 46.9 | mark = Lightgreen pog.svg | marksize = 12 }} | map_caption = }} The Ankarafantsika Formation is a Late Cretaceous (Cenomanian) geologic formation of the Mahajanga Basin in the Boeny region of Madagascar, Africa. The fine-grained sandstones of the formation were deposited in a fluvial to lacustrine environment.[1] FossilsIndeterminate sauropod remains of the Cretaceous period have been recovered from the formation.[1][2] See also{{Portal|Cretaceous|Paleontology|Madagascar|Prehistory of Africa}}
References1. ^1 Southeast of Marovoay at Fossilworks.org 2. ^Weishampel, et al. (2004). "Dinosaur distribution" Pp. 517-607. in Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. {{ISBN|0-520-24209-2}}. " Pp. 517-607. Further reading
10 : Geologic formations of Madagascar|Cretaceous System of Africa|Late Cretaceous Africa|Cretaceous Madagascar|Cenomanian Stage|Sandstone formations|Fluvial deposits|Lacustrine deposits|Paleontology in Madagascar|Mahajanga Province |
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