Katrol Formation

Katrol Formation
Stratigraphic range: Kimmeridgian-Tithonian ~150–145 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Underlies	Bhuj Formation
Overlies	Wagad Formation
Area	Kutch[1]
Location
Coordinates	23.5°N 70.5°E / 23.5; 70.5
Approximate paleocoordinates	27.4°S 33.3°E / -27.4; 33.3
Region	Gujarat
Country	India
Katrol Formation (India)

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.^[2]

Paleobiota

Dinosaurs

Sauropods of the Katrol Formation
Genus	Species	Material	Notes	Photos
Sauropoda[3]	Indeterminate	Footprints	A Sauropod.

Theropods

Theropods of the Katrol Formation
Genus	Species	Material	Notes	Photos
Megalosauridae?	Indeterminate	Footprints and vertebrae.	Originally described as an Allosauroid.[3]

Ornithischian

Ornithischians of the Katrol Formation
Genus	Species	Material	Notes	Photos
Ornithopoda?[3]	Indeterminate	Footprints	An Ornithopod

Sauropterygians

Sauropterygians of the Katrol Formation
Genus	Species	Material	Notes	Photos
Cryptoclididae[4]	Indeterminate	Nineteen connected vertebrae.	A Plesiosaur.

Ichthyosaurs

Ichthyosaurs of the Katrol Formation
Genus	Species	Material	Notes	Photos
Ophthalmosauridae[5]	Indeterminate	Articulated partial skeleton.	An Ichthyosaur.

Mollusca

Molluscs of the Katrol Formation
Genus	Species	Material	Notes
Palaeonucula	P. cuneiformis		A Nut Clam.
	P. stoliczkai
Trigonia	Sp.		A Clam.
Nuculoma	N. wynnei		A Nut Clam
Belemnoidea	Indeterminate		A Belemnitida Cephalopod.
Streblites	S. plicodiscus		A Oppeliidae ammonite.
Oppelia	O. plana		A Oppeliidae ammonite.
	O. kachhensis
Aspidoceras	A. binodiferum		A Aspidoceratidae ammonite.
	A. iphiceroides
	A. monacanthum
Taramelliceras	T. trachinotum		A Oppeliidae ammonite.
Haploceras	H. deplanatum		A Haploceratidae ammonite.
	H. propinquum
Pachysphinctes	P. bathyplocus		A Perisphinctidae ammonite.
Perisphinctes	P. pottingeri		A Perisphinctidae ammonite.
	P. torquatus
	P. katrolensis
	P. sparsiplicatus
	P. alterneplicatus
	P. euplocus
Harpoceras	H. kobelli		A Hildoceratidae ammonite.

Insecta

Insects of the Katrol Formation
Genus	Species	Material	Notes
Cycloserpula	sp.		A Millipede.

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with sauropodomorph tracks
    • Sauropod tracks
  • List of stratigraphic units with ornithischian tracks
• List of plesiosaur-bearing stratigraphic units

References

1. "Katrol Formation, Kutch, India: Varying interactions between eustasy and basin subsidence". ResearchGate. Retrieved 30 October 2017.
2. Supriya, Lakshmi. "Remarkably Complete 150 Million Year Old Marine Reptile Fossil Found in Gujarat - The Wire". thewire.in.
3. Dinosaur Fauna from Mesozoic Rocks of Western India- Z.G. Ghevariya and C. Srikarni
4. BARDET, N; MAZIN, J.-M.; CARIOU, E.; ENAY, R.; KRISHNA, J. (1991). "Les Plesiosauria du Jurassique supérieur de la province de Kachchh (Inde)". Les Plesiosauria du Jurassique supérieur de la province de Kachchh (Inde). 313 (11): 1343–1347. ISSN 0764-4450.
5. Prasad, Guntupalli V. R.; Pandey, Dhirendra K.; Alberti, Matthias; Fürsich, Franz T.; Thakkar, Mahesh G.; Chauhan, Gaurav D. (25 October 2017). "Discovery of the first ichthyosaur from the Jurassic of India: Implications for Gondwanan palaeobiogeography". PLOS ONE. 12 (10): e0185851. Bibcode:2017PLoSO..1285851P. doi:10.1371/journal.pone.0185851. PMC 5656312. PMID 29069082.

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