Katrol Formation
{{short description|Geologic formation in India}}
{{Use dmy dates|date=July 2019}}
{{Infobox rockunit
| name = Katrol Formation
| image =
| caption =
| type = Geological formation
| age = Kimmeridgian-Tithonian
~{{fossil range|150|145}}
| period = Tithonian
| prilithology =
| otherlithology =
| namedfor =
| namedby =
| region = Gujarat
| country = India
| coordinates = {{coord|23.5|N|70.5|E|display=inline,title}}
| paleocoordinates = {{coord|27.4|S|33.3|E|display=inline}}
| unitof =
| subunits =
| underlies = Bhuj Formation
| overlies = Wagad Formation
| thickness =
| extent =
| area = Kutch{{cite web|title=Katrol Formation, Kutch, India: Varying interactions between eustasy and basin subsidence|url=https://www.researchgate.net/publication/239877507|website=ResearchGate|accessdate=30 October 2017|language=en}}
| map = {{Location map+ | India
| relief = 1
| width = 250
| float = center
| places =
{{Location map~ | India
| lat_deg = 23.5
| lon_deg = 70.5
| mark = Cyan pog.svg
| marksize = 10
}}
}}
| map_caption =
}}
The Katrol Formation is a Mesozoic geologic formation in India. Fossil Dinosaur tracks have been reported from the formation. An indeterminate ophthalmosaurid ichthyosaur is also known from the formation in the Kutch district.{{cite web|last1=Supriya|first1=Lakshmi|title=Remarkably Complete 150 Million Year Old Marine Reptile Fossil Found in Gujarat - The Wire|url=https://thewire.in/192010/ichthyosaur-kutch-gujarat-vertebrate-fossils-late-jurassic-palaeogeography/|website=thewire.in}}
Paleobiota
=Dinosaurs=
=Theropods=
| class="wikitable" align="center" | ||||
| colspan="5" align="center" | Theropods of the Katrol Formation | ||||
|---|---|---|---|---|
| Genus | Species | Material | Notes | Photos |
| Megalosauridae?
| Indeterminate | Footprints and vertebrae. | Originally described as an Allosauroid.Dinosaur Fauna from Mesozoic Rocks of Western India- Z.G. Ghevariya and C. Srikarni | |
=Ornithischian=
| class="wikitable" align="center" | ||||
| colspan="5" align="center" | Ornithischians of the Katrol Formation | ||||
|---|---|---|---|---|
| Genus | Species | Material | Notes | Photos |
| Ornithopoda?
| Indeterminate | Footprints | An Ornithopod | |
=Sauropterygians=
| class="wikitable" align="center" | ||||
| colspan="5" align="center" | Sauropterygians of the Katrol Formation | ||||
|---|---|---|---|---|
| Genus | Species | Material | Notes | Photos |
| Cryptoclididae{{Cite journal |last=BARDET |first=N |last2=MAZIN |first2=J.-M. |last3=CARIOU |first3=E. |last4=ENAY |first4=R. |last5=KRISHNA |first5=J. |date=1991 |title=Les Plesiosauria du Jurassique supérieur de la province de Kachchh (Inde) |url=https://archive.org/details/image-to-pdf-20241001-20.10.43 |journal=Les Plesiosauria du Jurassique supérieur de la province de Kachchh (Inde) |volume=313 |issue=11 |pages=1343–1347 |issn=0764-4450}}
| Indeterminate | Nineteen connected vertebrae. | A Plesiosaur. | |
= Ichthyosaurs =
| class="wikitable" align="center" | ||||
| colspan="5" align="center" | Ichthyosaurs of the Katrol Formation | ||||
|---|---|---|---|---|
| Genus | Species | Material | Notes | Photos |
| Ophthalmosauridae{{cite journal|last1=Prasad|first1=Guntupalli V. R.|last2=Pandey|first2=Dhirendra K.|last3=Alberti|first3=Matthias|last4=Fürsich|first4=Franz T.|last5=Thakkar|first5=Mahesh G.|last6=Chauhan|first6=Gaurav D.|title=Discovery of the first ichthyosaur from the Jurassic of India: Implications for Gondwanan palaeobiogeography|pmc=5656312|journal=PLOS ONE|doi=10.1371/journal.pone.0185851|date=25 October 2017|volume=12|issue=10|pages=e0185851|pmid=29069082|bibcode=2017PLoSO..1285851P|doi-access=free}}
| Indeterminate |Articulated partial skeleton. | An Ichthyosaur. | |
=Mollusca=
| class="wikitable" align="center" | |||
| colspan="4" align="center" | Molluscs of the Katrol Formation | |||
|---|---|---|---|
| Genus | Species | Material | Notes |
| rowspan="2" | Palaeonucula
| P. cuneiformis | rowspan="2" | | rowspan="2" |A Nut Clam. | |||
| P. stoliczkai | |||
| Trigonia
| Sp. | |A Clam. | |||
| Nuculoma
| N. wynnei | |A Nut Clam | |||
| Belemnoidea
| Indeterminate | | |||
| Streblites
| S. plicodiscus | |A Oppeliidae ammonite. | |||
| rowspan="2" |Oppelia
|O. plana | rowspan="2" | | rowspan="2" |A Oppeliidae ammonite. | |||
| O. kachhensis | |||
| rowspan="3" |Aspidoceras
|A. binodiferum | rowspan="3" | | rowspan="3" |A Aspidoceratidae ammonite. | |||
| A. iphiceroides | |||
| A. monacanthum | |||
| Taramelliceras
|T. trachinotum | | A Oppeliidae ammonite. | |||
| rowspan="2" |Haploceras
|H. deplanatum | rowspan="2" | | rowspan="2" |A Haploceratidae ammonite. | |||
| H. propinquum | |||
| Pachysphinctes
|P. bathyplocus | | |||
| rowspan="6" |Perisphinctes
|P. pottingeri | rowspan="6" | | rowspan="6" |A Perisphinctidae ammonite. | |||
| P. torquatus | |||
| P. katrolensis | |||
| P. sparsiplicatus | |||
| P. alterneplicatus | |||
| P. euplocus | |||
| Harpoceras
|H. kobelli | |
= Insecta =
| class="wikitable" align="center" | |||
| colspan="4" align="center" | Insects of the Katrol Formation | |||
|---|---|---|---|
| Genus | Species | Material | Notes |
| Cycloserpula
|sp. | | A Millipede. |
See also
References
{{Reflist}}
= Bibliography =
- Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. {{ISBN|0-520-24209-2}}