Coordinates: 11°06′N 78°54′E / 11.1°N 78.9°E / 11.1; 78.9

Trichinopoly Group

From The Right Wiki
Revision as of 20:24, 1 October 2024 by 103.59.204.242 (talk) (Dinosaurs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigationJump to search

Trichinopoly Group
Stratigraphic range: Turonian-Santonian
~94–84 Ma
TypeGeological formation
UnderliesAriyalur Group
OverliesOotatoor Group
Lithology
PrimarySandstone
Location
Coordinates11°06′N 78°54′E / 11.1°N 78.9°E / 11.1; 78.9
Approximate paleocoordinates44°48′S 45°48′E / 44.8°S 45.8°E / -44.8; 45.8
RegionTamil Nadu and Kerala
CountryFile:Flag of India.svg India

The Trichinopoly Group is a geological formation in India whose strata date back to the Late Cretaceous. It lies between the Ootatoor and Ariyalur Groups. It is broad in its southern extremity but thins as it gradually proceeds northwards as it ultimately meets the Ariyalur Group.[1] Dinosaur remains are among the fossils that have been recovered from the formation.[2]

Paleobiota

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Dinosaurs

Ornithischians
Genus Species Location Stratigraphic position Material Notes Images
Dravidosaurus[3] D. blanfordi Ariyalur Fragmentary Skull, tooth, sacrum, ilium, ischium, armor plate and dermal spine of an adult. A (Possible) Stegosaur.
?Iguanodon[4] sp. Ootatoor "Unidentified remains of a Gigantic Saurian presumed to be an Ornithopod" A fragmentary Ornithopod described as an Iguanodon.

See also

References

  1. Memoirs of the Geological Survey of India. Oxford University. 1865. pp. 107–140.
  2. Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 593-600. ISBN 0-520-24209-2.
  3. "Table 16.1," in Weishampel, et al. (2004). Page 344.
  4. Blanford, W.T. (1862). "On the Cretaceous and other rocks of the South Arcit, and Trichinopoly districts, Madras". Memoirs of the Geological Survey of India. 4 (1): 1–217.

Bibliography