Panchet Formation | |
---|---|
Stratigraphic range: Early Triassic, | |
Type | Geological formation |
Underlies | Supra Panchet Formation |
Overlies | Raniganj Formation |
Location | |
Coordinates | 23°36′N87°00′E / 23.6°N 87.0°E |
Approximate paleocoordinates | 55°30′S60°12′E / 55.5°S 60.2°E |
Region | West Bengal, Jharkhand |
Country | India |
The Panchet Formation is an Early Triassic geological formation from the Damodar Valley of India. [1] [2]
It is among the few geological formations outside of Russia, South Africa, and China that documents the recovery of global ecosystems immediately after the Permian-Triassic extinction. It shares similar traits to some of these other formations, including the dominance of Lystrosaurus and the primary predators being proterosuchid reptiles. It also preserves a diversity of temnospondyl amphibians. [3] [4]
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
---|---|---|---|---|---|---|
Lystrosaurus | L. murrayi | A lystrosaurid dicynodont. Synonyms include L. orientalis and L. rajurkari. | ![]() | |||
L. cf. curvatus | A lystrosaurid dicynodont. | |||||
L. cf. declivis | A lystrosaurid dicynodont. | |||||
Panchetocynodon | P. damodarensis | A cynodont of uncertain affinity. | ||||
Thrinaxodon | T. bengalensis | A thrinaxodontid cynodont. | Considered a nomen nudum. The specimen is lost. | |||
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
---|---|---|---|---|---|---|
?Benthosuchidae indet. | ||||||
Capulomala | C. panchetensis | A plagiosaurid temnospondyl. | ||||
Gonioglyptus | G. fragilis | A trematosaurid temnospondyl. | ||||
G. longirostris | ||||||
Indobrachyops | I. panchetensis | A rhytidosteid temnospondyl. | ![]() | |||
Indolyrocephalus | I. huxleyi | A trematosaurid. | ||||
Lydekkerina | L. sp. | A lydekkerinid temnospondyl. | ![]() | |||
Pachygonia | P. incurvata | Possibly a brachyopid temnospondyl. | ||||
Manubrantlia | M. khaki | A lapillopsid temnospondyl | ![]() | |||
Tupilakosaurus | T. sp | A tupilakosaurid temnospondyl. | ![]() |
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
---|---|---|---|---|---|---|
Samsarasuchus | S. pamelae | A proterosuchid archosauriform. | ||||
?" Teratosaurus " | T. bengalensis | A dubious archosauriform represented by a single tooth, formerly considered a rauisuchian but most likely a proterosuchid. [3] | ||||
Ankistrodon | A. indicus | Dubious proterosuchid. | ||||
Neodiapsida indet. | A non-archosauromorph diapsid, known from an ilium. [4] | |||||
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
---|---|---|---|---|---|---|
Acrolepidae indet. | An acrolepid fish. | |||||
Perleididae indet. | A perleidid fish. | |||||
Chondrichthyes indet. | A cartilaginous fish. | |||||
Ceratodontidae indet. | A ceratodontid lungfish. |