Name: Isisaurus ‭(‬Indian Statistical Institute lizard‭)‬.
Phonetic: I-si-sore-us.
Named By: Wilson‭ & ‬Upchurch‭ ‬-‭ ‬2003.
Synonyms: Titanosaurus colberti.
Classification: Chordata,‭ ‬Reptila,‭ ‬Dinosauria,‭ ‬Sauropodomorpha,‭ ‬Sauropoda,‭ ‬Titanosauria,‭ ‬Antarctosauridae.
Species: I.‭ ‬colberti‭ (‬type‭)‬.
Diet: Herbivore.
Size: Total size uncertain due to incomplete remains,‭ ‬but at least about‭ ‬14-15‭ ‬meters long for the holotype individual.‭ ‬Holotype individuals humerus‭ ‬148‭ ‬centimetres long,‭ ‬and Ulna‭ ‬80‭ ‬centimetres long.
Known locations: India - Lameta Formation.
Time period: Maastrichtian of the Cretaceous.
Fossil representation: Very well preserved with much of the post cranial skeleton known. However, skull and posterior portion of the tail are unknown.

       Originally named in‭ ‬1997‭ ‬as Titanosaurus colberti by Jain and Bandyopadhyay,‭ ‬a new study by Wilson and‭ ‬Upchurch in‭ ‬2003‭ ‬saw the fossils renamed as a new genus,‭ ‬Isisaurus.‭ ‬Isisaurus was named after the Indian Statistical Institute and should not be confused with the goddess Isis from Ancient Egyptian mythology.
       Isisaurus was a moderately size titanosaur that roamed India during the late Cretaceous period.‭ ‬Fungal analysis of coprolites attributed to Isisaurus has revealed that Isisaurus probably fed upon a variety of different trees.‭ ‬This would confirm that Isisaurus was a‭ ‬high browser.‭ ‬Isisaurus would have shared its environment with other similar dinosaurs such as Jainosaurus as well as predatory theropods like the abelisaur Rajasaurus which may have posed a serious threat to young juveniles of both of these titanosaurs.

Further reading
- New Titanosaurid (Dinosauria: Sauropoda) from the Late Cretaceous of Central India - Sohan L. Jain, Saswati Bandyopadhyay - 1997.
- A revision of Titanosaurus Lydekker (Dinosauria – Sauropoda), the first dinosaur genus with a 'Gondwanan' distribution - Jeffrey A. Wilson & Paul Upchurch - 2003.
- Fungi in dinosaurian (Isisaurus) coprolites from the Lameta Formation (Maastrichtian) and its reflection on food habit and environment. - Micropaleontology, 51(1): 73-82. - N. Sharma, R. K. Kar, A. Agarwal & R. Kar - 2005.


Random favourites