Jaisalmer Formation
Geologic formation in India / From Wikipedia, the free encyclopedia
The Jaisalmer Formation is a Middle to Late Jurassic-aged geologic formation located in India near the city of Jaisalmer that consists mainly of marine deposits.[2] The formation was first identified and defined by geologist Richard Dixon Oldham in 1886.[1]
Quick Facts Type, Sub-units ...
Jaisalmer Formation | |
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Stratigraphic range: Middle-Late Jurassic, Bajocian–Oxfordian | |
![]() An outcrop of the Jaisalmer Formation which is the type locality for Tharosaurus indicus. Photographed between 2019-21. | |
Type | Geological formation |
Sub-units | Badabag Member, Fort Member, Hamira Member, Jajiya Member, Joyan Member, Kuldhar Member |
Underlies | Baisakhi Formation |
Overlies | Lathi Formation |
Thickness | Variable, typically 120–170 km (75–106 mi) |
Lithology | |
Primary | Siltstone, sandstone |
Other | Limestone |
Location | |
Coordinates | 26.911661°N 70.922928°E / 26.911661; 70.922928 |
Country | ![]() |
Extent | Jaisalmer |
Type section | |
Named for | Jaisalmer, India |
Named by | Richard Dixon Oldham |
Year defined | 1886[1] |
Close
Dinosaur remains are among the known fossils recovered from this formation.[3]
Strophodus jaisalmerensis, a hybodont, was named after this formation and the Jaisalmer District where its holotype was found.[4]