| 词条 | Hidden Lake Formation |
| 释义 |
| name = Hidden Lake Formation | image = | caption = | type = Geological formation | age = Coniacian-Santonian | period = Santonian | prilithology = Sandstone | otherlithology = Siltstone | namedfor = Hidden Lake | namedby = | region = James Ross Island, James Ross Island group | country = Antarctica | coordinates = {{coord|63.0|S|57.0|W|display=inline,title}} | paleocoordinates = {{coord|63.1|S|63.9|W|display=inline}} | unitof = Gustav Group | subunits = | underlies = | overlies = Whisky Bay Formation | thickness = | extent = | area = | map = Wfm antarctic peninsula islands.png | map_caption = Map of James Ross Island group James Ross Island is number 2 }} The Hidden Lake Formation is a Late Cretaceous geologic formation in Antarctica. The sandstones and siltstones of the formation were deposited in a deltaic environment. Intederminate megalosaur remains have been recovered from it.[1] Also many plant fossils and ichnofossils of Planolites sp. and Palaeophycus sp. have been found in the formation.[2] See also{{Portal|Earth sciences|Paleontology|Dinosaurs|Cretaceous|Prehistory of Antarctica}}
References1. ^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. 2. ^Hidden Lake at Fossilworks.org Further reading
7 : Geologic formations of Antarctica|Cretaceous System of Antarctica|Coniacian Stage|Santonian Stage|Sandstone formations|Deltaic deposits|James Ross Island |
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