Chari Formation
{{short description|Geologic formation in India}}
{{Infobox rockunit
| name = Chari Formation
| image =
| caption =
| type = Geological formation
| age = Callovian-Oxfordian
~{{fossil range|165|158}}
| period = Oxfordian
| prilithology = Limestone, siltstone, sandstone
| otherlithology = Oolite
| namedfor = Chari, "salt affected"
| namedby =
| region = Gujarat
| country = India
| coordinates = {{coord|23.5|N|69.4|E|display=inline,title}}
| paleocoordinates = {{coord|23.6|S|32.6|E|display=inline}}
| unitof =
| subunits = Dhosa Conglomerate, Dhosa Oolite & Dhosa Sandstone Members
| underlies =
| overlies =
| thickness =
| extent =
| area =
| map = {{Location map+ | India#India Gujarat
| relief = 1
| width = 250
| float = center
| places =
{{Location map~ | India#India Gujarat
| lat_deg = 23.5
| lon_deg = 69.4
| mark = Blue pog.svg
| marksize = 10
}}
}}
| map_caption =
}}
The Chari Formation is a Jurassic (Callovian to Oxfordian) geologic formation in Gujarat, western India.[https://paleobiodb.org/classic/displayStrata?geological_group=&formation=Chari&group_formation_member=Chari Chari Formation] at Fossilworks.org Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607. The ammonite Reineckeia has also been found here. The skulls of two marine crocodiles have also been found and have been putatively identified as Steneosaurus.{{Cite journal |last=Phansalkar |first=V. G. |last2=Sudha |first2=G. |last3=A. S. |first3=Khadkikar |date=1994 |title=Giant marine reptilian skulls from the Jurassic of Kachchh, Gujarat |journal=Current Science |volume=67(6) |language=en |pages=460-461 |url=https://www.researchgate.net/publication/297734260_Giant_marine_reptilian_skulls_from_the_Jurassic_of_Kachchh_Gujarat}}
Paleobiota
=Dinosaurs=
;Sauropods
class="wikitable" align="center" | |||||
colspan="6" align="center" | Sauropods of the Chari Formation | |||||
---|---|---|---|---|---|
Genus | Species | Locality | Material | Notes | Photos |
Sauropoda{{Cite journal |last=Jana |first=Sudipta K. |last2=Das |first2=Shiladri |title=A report of a 157.8 m.y.-old dinosaur bone from the Jurassic marine Chari Formation, Kutch, Gujarat and its taphonomic significance |url=https://www.researchgate.net/publication/237363014_A_report_of_a_1578_my-old_dinosaur_bone_from_the_Jurassic_marine_Chari_Formation_Kutch_Gujarat_and_its_taphonomic_significance |journal=Current Science |volume=82 |issue=1 |language=en |pages=85-88 |date=2002-01-10}}
|indet |Jumara |Proximal part of hindlimb. |A Sauropod | |
=Pseudosuchians=
class="wikitable" align="center" | |||||
colspan="6" align="center" | Pseudosuchians of the Chari Formation | |||||
---|---|---|---|---|---|
Genus | Species | Locality | Material | Notes | Photos |
?Steneosaurus
|sp. |Dhosa Oolith |Two Skulls. |A Teleosauridae Pseudosuchian. | |
=Invertebrates=
;Mollusca
class="wikitable" align="center" | |||||
colspan="6" align="center" | Molluscas of the Chari Formation | |||||
---|---|---|---|---|---|
Genus | Species | Locality | Material | Notes | Photos |
rowspan="2" |Choffatia
|C. pardagatus | rowspan="2" |Jumara | rowspan="2" | | rowspan="2" |A Perisphincitidae Ammonite. | rowspan="2" | | |||||
C. cobra | |||||
Indosphinctes
|I. indica |Jumara | | | |||||
Phlycticeras
|sp. |Jumara | | | |||||
Reineckeia
|R. anceps |Jumara | | |
See also
References
{{Reflist}}
= Bibliography =
- {{citation |last1=Weishampel |first1=David B. |author2-link=Peter Dodson |last2=Dodson |first2=Peter |author3-link=Halszka Osmólska |last3=Osmólska |first3=Halszka |year=2004 |title=The Dinosauria, 2nd edition |url=https://books.google.com/books?id=vtZFDb_iw40C |publisher=Berkeley: University of California Press |pages=1–880 |accessdate=2019-02-21 |isbn=0-520-24209-2 |author1-link=David B. Weishampel }}
Further reading
- R. Dutta and S. Bardhan. 2016. Systematics, endemism and phylogeny of Indian proplanulitins (Ammonoidea) from the Bathonian–Callovian of Kutch, western India. Swiss Journal of Paleontology 135:23-56
- M. Alberti, D. K. Pandey, and F. T. Fürsich. 2011. Ammonites of the genus Peltoceratoides Spath, 1924 from the Oxfordian of Kachchh, western India. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 262:1-18
- S. S. Das, S. Bardhan, and T. Kase. 2005. A new pleurotomariid gastropod assemblage from the Jurassic sequence of Kutch, western India. Paleontological Research 9(4):329-346
- F. T. Fürsich, D. K. Pandey, W. Oschmann, A.K. Jaitly, and I.B. Singh. 1994. Ecology and adaptive strategies of corals in unfavourable environments: Examples from the Middle Jurassic of the Kachchh Basin, western India. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 194(2–3):269-303
- D. N. Ghosh. 1990. Biometry of two species of Kallirhynchia (Buckman) from Callovian beds of Kutch, India. Brachiopods Through Time 97-100
Category:Geologic formations of India
Category:Jurassic System of Asia
Category:Shallow marine deposits