The sauropod dinosaur from the Lower Jurassic Kota formation of India

Jain, S. L.; Kutty, T. S.; Roychowdhury, Tapan; Chatterjee, Sankar

doi:10.1098/rspb.1975.0014

Cited by 46 publications

(10 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Other well-preserved Early Jurassic sauropod skeletons, which are diagnostic at the generic level, include those of Barapasaurus [13,14] and Kotasaurus [33,34] from the Indian Kota Formation, Vulcanodon from the Zambezi Valley in Zimbabwe [5,23], and Gongxianosaurus from the Ziliujing Formation of China [11]. Barapasaurus can be separated from Tazoudasaurus by the peculiar morphology of the neural arch of the dorsal vertebrae (i.e., the development of concavities on the anterior and posterior faces of the posterior dorsal neural arches; and a infradiapophyseal pneumatopore on the middle and posterior dorsal neural arches), the absence of lesser trochanter on the femur and the laterally projecting cnemial crest.…”

Section: Discussionmentioning

confidence: 99%

“…Tazoudasaurus also exhibits a set of sauropod plesiomorphic characters, otherwise known only in Vulcanodon: flat pubic apron, lesser trochanter present on femur, nonungual pedal phalanges longer than broad, and flat plantar surface on pedal unguals II and III. Although widely considered to be of basal Jurassic age (Hettangian) [3][4][5]10,13,23,28,30,32], recent dates support a Toarcian (late Early Jurassic) age for the Karoo basalts [7,15], thereby rendering Vulcanodon a contemporary of Tazoudasaurus. Both taxa are placed within the monophyletic family Vulcanodontidae to the exclusion of other primitive sauropods, such as Barapasaurus [13,14], Kotasaurus [33,34] and Shunosaurus [6] (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Tazoudasaurus se différencie de Barapasaurus [13,14] et de Kotasaurus [33,34] du Jurassique infé-rieur d'Inde, et de Gongxianosaurus [11] du Jurassique inférieur de Chine, sur la base de nombreux caractères anatomiques. Il présente, en revanche, beaucoup plus d'affinités avec Vulcanodon, du Jurassique inférieur du Zimbabwe [5,23], duquel il diffère cependant par l'absence de sillon médian sur la face ventrale des vertè-bres dorsales et par des épines neurales caudales plus allongées antéropostérieurement.…”

Section: Paléontologie Systématiqueunclassified

“…3). Les récentes datations effectuées sur les basaltes du plateau du Karoo montrent que Vulcanodon serait contemporain de Tazoudasaurus [7,15], même si de nombreux auteurs continuent à le placer dans le Jurassique basal (Hettangien) [3][4][5]10,13,23,28,30,32]. Les deux taxons sont regroupés ici au sein de la famille monophylétique des Vulcanodontidae, qui exclut les autres sauropodes connus au Jurassique inférieur [5,25,26,32].…”

unclassified

See 3 more Smart Citations

A basal sauropod dinosaur from the Early Jurassic of Morocco

Allain

Aquesbi

Dejax

et al. 2004

Comptes Rendus Palevol

View full text Add to dashboard Cite

Continental strata of Early Jurassic age are seldom exposed, and little is known of the history of sauropod dinosaurs prior to the Middle Jurassic radiation of neosauropods. Well-preserved skeletons and skulls have not been recovered from strata older than the Middle Jurassic. Here we report, in the Early Jurassic of the Moroccan High Atlas, the discovery of the skeleton, including cranial material, of a new vulcanodontid sauropod. Tazoudasaurus naimi n.g., n.sp. represents with Vulcanodon the sister group of the eusauropods and the most complete basal sauropod material available to date. RésuméParce que les dépôts continentaux du Jurassique inférieur affleurent rarement, l'histoire des dinosaures sauropodes est très mal connue avant la radiation des néosauropodes au Jurassique moyen. Les premiers crânes de sauropodes associés à des restes osseux bien préservés datent ainsi du Jurassique moyen. Nous rapportons ici la découverte, dans le Jurassique inférieur du Haut Atlas marocain, du squelette et du crâne d'un nouveau sauropode. Tazoudasaurus naimi n.g., n.sp. est le groupe frère de Vulcanodon et le sauropode basal le plus complet connu à l'heure actuelle. Diagnose. Sauropode primitif, défini par les autapomorphies suivantes (Fig. 2a-n) : lame osseuse s'éten-dant sur la marge postérodorsale du postorbitaire ; chevrons distaux bifurqués avec des processus anté-rieurs et postérieurs non fusionnés ; présence d'une crête sur la face latérale de l'extrémité proximale de la fibula. Tazoudasaurus présente aussi une combinaison unique de synapomorphies de sauropode (préarticu-laire étendu dorsoventralement ; couronne dentaire vue en coupe, en forme de D ; émail dentaire plissé ; centrum des vertèbres cervicales opisthocoele ; large épine neurale dorsale ; quadrupédie obligatoire ; crête deltopectorale de l'humérus réduite, rapport humérus/fémur supérieur à 0,60 ; diaphyse fémorale elliptique en coupe ; absence de foramens à la base du processus ascendant de l'astragale ; phalange unguéale du premier doigt du pied en forme de faucille) et de symplésiomorphies de sauropodomorphe (20 dents dentaires, avec des denticules sur les marges antérieure et postérieure de la couronne dentaire ; extrémité anté-rieure du dentaire peu étendue dorsoventralement ; rangées dentaires convergentes en forme de V ; absence de fosse quadratique postérieure ; présence d'un petit trochanter sur le fémur ; surface plantaire des phalanges unguéales des doigts II et III aplatie).Tazoudasaurus (Fig. 3). Les récentes datations effectuées sur les basaltes du plateau du Karoo montrent que Vulcanodon serait contemporain de Tazoudasaurus [7,15], même si de nombreux auteurs continuent à le placer dans le Jurassique basal (Hettangien) [3][4][5]10,13,23,28,30,32]. Les deux taxons sont regroupés ici au sein de la famille monophylétique des Vulcanodontidae, qui exclut les autres sauropodes connus au Jurassique inférieur [5,25,26,32].Atlasaurus imlakei du Jurassique moyen (Bathonien) du Haut Atlas central [20,21] est le groupe frère des Neosauropoda ...

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Paléontologie Systématiqueunclassified

unclassified

See 2 more Smart Citations

A basal sauropod dinosaur from the Early Jurassic of Morocco

Allain

Aquesbi

Dejax

et al. 2004

Comptes Rendus Palevol

View full text Add to dashboard Cite

show abstract

“…Barapasaurus tagorei, the earliest sauropod dinosaur, stands in the Geology Museum of the Indian Statistical Institute, Calcutta (Jain et al, 1975). It is gigantic (47 feet long and 13 feet high) and is India's first dinosaur mount.…”

mentioning

confidence: 99%

The First Mount of an Indian Dinosaur

Majumdar

1987

Curator The Museum Journal

View full text Add to dashboard Cite

Reassessment of the non‐titanosaurian somphospondylanWintonotitan wattsi(Dinosauria:Sauropoda:Titanosauriformes) from the mid‐CretaceousWintonFormation,Queensland,Australia

Poropat

Mannion

Upchurch

et al. 2014

Papers in Palaeontology

View full text Add to dashboard Cite

Wintonotitan wattsi, a Cretaceous titanosauriform sauropod from central Queensland, Australia, is redescribed following a full revision of its osteology. The holotype specimen, a partial postcranial skeleton derived from the lower Upper Cretaceous Winton Formation, comprises axial and appendicular elements. Wintonotitan has been commonly resolved as a non‐titanosaurian somphospondylan titanosauriform since its description, in contrast to its more derived contemporary Diamantinasaurus matildae. We provide a detailed redescription, taking this opportunity to correct four misinterpretations made in the original description of Wintonotitan that impact on our understanding of this taxon: the right ulna was originally described as the left and vice versa; the left metacarpus was incorrectly described as being from the right side; metacarpal IV was described as metacarpal V and vice versa; and the ilium was incorrectly oriented. The reassessment of the metacarpus is particularly important, since it shows that a proximal fossa is present on metacarpals I, II and III, which might have been occupied by either the strongly convex distal end of the radius or a (possibly unossified) carpal element. We provide a review of titanosauriform metacarpal morphology to support our reassessments. Our revision of the osteology of Wintonotitan results in the identification of several previously unrecognized autapomorphies, augmenting and revising its original diagnosis. We provide additional support for the previous referral of four caudal vertebrae from south‐east of Winton, Queensland, to W. wattsi. Furthermore, we demonstrate that a tentative report of titanosaur osteoderms from the Winton Formation was based on misidentification of dorsal vertebral neural spines pertaining to the holotype of W. wattsi. Consequently, titanosaur osteoderms are currently unknown from Australia. Following our revision and reinterpretation of a number of elements, we re‐examine the phylogenetic placement of Wintonotitan, supporting its position as a non‐titanosaurian somphospondylan titanosauriform, with no close relationship with the contemporaneous lithostrotian titanosaur Diamantinasaurus.

show abstract

The sauropod dinosaur from the Lower Jurassic Kota formation of India

Cited by 46 publications

References 2 publications

A basal sauropod dinosaur from the Early Jurassic of Morocco

A basal sauropod dinosaur from the Early Jurassic of Morocco

The First Mount of an Indian Dinosaur

Reassessment of the non‐titanosaurian somphospondylanWintonotitan wattsi(Dinosauria:Sauropoda:Titanosauriformes) from the mid‐CretaceousWintonFormation,Queensland,Australia

Contact Info

Product

Resources

About