| 词条 | Takutu Formation |
| 释义 |
| name = Takutu Formation | image = | caption = | type = Geological formation | period = Late Jurassic | age = Late Jurassic | prilithology = Sandstone | otherlithology = | namedfor = Takutu River | namedby = | region = Upper Takutu-Upper Essequibo | country = {{BRA}} {{GUY}} | coordinates = {{coord|3.0|N|59.7|W|display=inline,title}} | paleocoordinates = {{coord|3.2|N|27.4|W|display=inline}} | unitof = Rewa Group | subunits = | underlies = | overlies = | thickness = | extent = Guyana Shield | area = | map = {{Location map+ | Guyana | relief = 1 | width = 150 | float = center | caption = Outcrop of the formation in Guyana | places = | lat_deg = 3.0 | lon_deg = -59.7 | mark = Blue pog.svg | marksize = 12 }} | map_caption = }} The Takutu Formation is a Late Jurassic geologic formation in Guyana and northern Brazil. The formation comprises sandstones deposited in a shallow water to littoral setting.[1] Fossil theropod tracks have been reported from the formation.[2][3] A paleobotanic analysis of drill cores of the formation was conducted by Thomas van der Hammen in 1966 and showed fossil Classiopolis flora.[1] See also{{Portal|Earth sciences|Paleontology|Dinosaurs|Jurassic|Prehistory of South America}}
References1. ^1 Berrangé, 1977, p.84 2. ^Weishampel et al., 2004, pp.517-607 3. ^Leonardi, 1994, p.69 Bibliography
Further reading
8 : Geologic formations of Brazil|Geologic formations of Guyana|Jurassic System of South America|Late Jurassic South America|Jurassic Brazil|Mesozoic Guyana|Sandstone formations|Upper Takutu-Upper Essequibo |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。