The Ariyalaur Group is a geological group in Tamil Nadu in Southern India.
Fossil content
Dinosaurs from the Ariyalaur group Genus Species Material Notes MemberImagesAbelisauridae indet. "Disassociated remains" and teeth. Kallamedu formation Carnosauria indet.? "Fragmentary remains". Carnosauria was often used as a wastebasket taxon.Kallamedu formation Troodontidae indet. One isolated tooth (DUGF/52).Kallamedu formation BruhathkayosaurusYadagiri, P. and Ayyasami, K. (1987). "A carnosaurian dinosaur from the Kallamedu Formation (Maestrichtian horizon), Tamilnadu." In M.V.A. Sastry, V.V. Sastry, C.G.K. Ramanujam, H.M. Kapoor, B.R. Jagannatha Rao, P.P. Satsangi, and U.B. Mathur (eds.), Three Decades of Development in Palaeontology and Stratigraphy in India. Volume 1. Precambrian to Mesozoic. Geological Society of India Special Publication, 11(1): 523–528. B. matleyi ilium and ischium, femur, tibia, radius and part of a vertebra (specifically a platycoelous caudal centrum). Remains no longer exist. Initially described as a Theropod, it was reclassified as a Titanosaur.Kallamedu formation SauropodaIndeterminate.R. Lydekker. (1877). Notices of new and other Vertebrata from Indian Tertiary and Secondary rocks. Records of the Geological Survey of India 10(1):30–43C. R. Narayana Rao and L. Rama Rao. 1930. The limb bones of a sauropodous dinosaur. Proceedings of the Indian Science Congress, Allahabad 17:330. "Fragmentary remains".Kallamedu formation TitanosauriaIndeterminate. Solitary egg.Kallamedu formationTitanosauriaIndeterminate.Matley, 1929. "The Cretaceous Dinosaurs of the Trichinopoly district and the rocks associated with them". Records of the Geological Survey of India. Vol. 61 (4):337-349.Ten large sauropod bones, some of which could be identified as a humerus or femur, proximal end of a femur and scapula. All the bones pertain to the limbs.Similar in size to Bruhathkayosaurus.Kallamedu formationFusioolithus F. baghensisDinosaur eggs.Kallamedu formation?CamarasauridaeC. R. Narayana Rao and L. Rama Rao. 1930. Some dinosaurian vertebrae. Proceedings of the Indian Science Congress, Allahabad 17:329. Indeterminate.Vertebrae. Camarasaurids are not known from the cretaceous.Kallamedu formation ?StegosauriaIndeterminate. Misinterpreted sauropod bone. Other more plausible Stegosaur material is known from Cretaceous India.Kallamedu formationSauropodaSauropoda indet."Scant remains".StegosauriaStegosauria indet.TheropodaTheropoda indet."Scant remains". Theropoda indet. A Theropod.Kallankurichchi formation ?Titanosaurus T. indicus A dubious genus of titanosaurian sauropod.Kallakurichi Formation MegaloolithusKohring et al., 1996 M. cylindricus Fossilised eggs. A Sauropod Oogenus.Kallakurichi FormationThe holotype of Sanajeh preserved with Megaloolithus StegosauridaeWeishampel, et al. (2004). The Dinosauria. Second Edition. p. 680. Stegosauridae indet A Stegosaurid.Kallakurichi Formation Molluscs from the Ariyalaur group Genus Species Material Notes MemberImagesInoceramusI. sp.Sillakkudi formationKarapadites K. karapadenseSillakkudi formation InoceramusAyyasami, 1989 I. bulbus A clam.Kallakurichi formation I. tamulicusKallakurichi formation Pycnodonta P. vesicularis A clam.Kallakurichi formation Ostrea (Alectryonia) sp. A clam.Kallakurichi formation Anisomyon A. indicus A snail.Kallakurichi formation
Foraminiferas from the Ariyalaur group Genus Species Material Notes ImagesGlobotruncanaG. arcaSillakkudi formation G. ventricosaSillakkudi formationG. elevataSillakkudi formation Sea Urchins from the Ariyalaur group Genus Species Material MemberNotes Images Hemipneustes H. compressusAziz & Badve, 1990Kallakurichi Formation
Rhynchonellatans from the Ariyalaur group Genus Species Material Notes MemberImages Rectithyris R. subdepressaKallakurichi Formation Rhynchonella R. sp.Kallakurichi Formation Brachiopods from the Ariyalaur group Genus Species Material Notes MemberImages Gyrodina G. globosaKallakurichi Formation Neobulimina N. sp.Kallakurichi Formation Arthropods from the Ariyalur group Genus Species Material Notes MemberImagesThalassinoidesT. sp.An ichnofossil made by decapod crustaceans, or fishOttakovil FormationOphiomorphaO. sp.Made by burrowing arthropodsOttakovil Formation
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