EARLIEST MAMMAL WITH TRANSVERSELY EXPANDED UPPER MOLAR FROM THE LATE TRIASSIC (CARNIAN) TIKI FORMATION, SOUTH REWA GONDWANA BASIN, INDIA

@inproceedings{Datta2005EARLIESTMW,
  title={EARLIEST MAMMAL WITH TRANSVERSELY EXPANDED UPPER MOLAR FROM THE LATE TRIASSIC (CARNIAN) TIKI FORMATION, SOUTH REWA GONDWANA BASIN, INDIA},
  author={P. M. Datta},
  year={2005}
}
Abstract A mammalian upper molariform tooth recovered from the Late Triassic (Carnian) Tiki Formation of the South Rewa Gondwana Basin, India, is described as a new taxon, Tikitherium copei, gen. et sp. nov. Coming from such an ancient horizon, the tooth is remarkable in having on its crown, which is supported by three roots, three buccally placed cusps forming an obtuse triangle, another prominent cusp with two associated shearing crests in the posterolingual corner, and a talon-like… Expand
A new hybodont shark (Chondrichthyes, Elasmobranchii) from the Upper Triassic Tiki Formation of India with remarks on its dental histology and biostratigraphy
Abstract. A new lonchidiid genus, Pristrisodus, from the Upper Triassic Tiki Formation of India is described based on multiple, well-preserved, isolated teeth. Comparative analysis resulted inExpand
The Mandible and Dentition of Borealestes serendipitus (Docodonta) from the Middle Jurassic of Skye, Scotland
ABSTRACT The Middle Jurassic docodont Borealestes serendipitus was the first Mesozoic mammal found in Scotland over 40 years ago. Its affinities and morphology have remained poorly understood.Expand
New cynodonts (Therapsida, Eucynodontia) from the Late Triassic of India and their significances
TLDR
The Upper Triassic Tiki Formation of India has yielded several new cynodont taxa, which are described on the basis of multiple isolated teeth and a jaw fragment, and such a tooth morphology occupies an intermediate position between the non-mammalian Cynodonts and the early mammals. Expand
A New Late Triassic Traversodontid Cynodont (Therapsida, Eucynodontia) from India
TLDR
Phylogenetic analysis places Ruberodon within the clade containing Gomphodontosuchus, Menadon, Protuberum, Scalenodontoides, and the multispecific Exaeretodon, which forms a sister taxon to E. statisticae and is more advanced than E. riograndensis and E. argentinus. Expand
Reigitherium (Meridiolestida, Mesungulatoidea) an Enigmatic Late Cretaceous Mammal from Patagonia, Argentina: Morphology, Affinities, and Dental Evolution
TLDR
A Dental Topography Analysis comparing Reigitherium and its sister taxon Peligrotherium to Cretaceous and Cenozoic therians demonstrates functional similarity between the mesungulatoids and South American marsupial taxa that succeed them in the small-to medium-sized herbivore niche during the Paleocene. Expand
A record of new lungfishes (Osteichthyes: Dipnoi) from the Carnian (Upper Triassic) of India
ABSTRACT Numerous tooth plates of different types were recovered from the Upper Triassic Tiki Formation of India. Sharp crested tooth plates with five acute ridges, tubercles on the crests, robustExpand
First report of dinosaurian claws from the Late Triassic of India
TLDR
Although it is not possible to ascertain whether the unguals belong to a single taxon or multiple taxa, this new find points towards the presence of small dinosaurs in the Late Triassic Tiki fauna. Expand
A New Species of Docodon (Mammaliaformes: Docodonta) from the Upper Jurassic Morrison Formation and a Reassessment of Selected Craniodental Characters in Basal Mammaliaforms
TLDR
A new species of the basal mammaliaform Docodon is described, represented by three nearly complete dentaries from the Upper Jurassic Morrison Formation of central Colorado, which unambiguously preserve a complete and undistorted angular process that differs conspicuously from the classical interpretation of the holotype of Docodon victor. Expand
New Jurassic mammaliaform sheds light on early evolution of mammal-like hyoid bones
TLDR
A Jurassic fossil shows that early premammalian ancestors possessed hyoids similar to those seen in mammals today, and a new Jurassic docodontan mammaliaform found in China that is preserved with the hyoid bones is reported. Expand
Taphonomy of an Upper Triassic vertebrate bonebed: A new rhynchosaur (Reptilia; Archosauromorpha) accumulation from India
TLDR
A new, low diversity, mono-dominant, multitaxic vertebrate accumulation where rhynchosaurs constitute the dominant component of the Tiki Upper Triassic Formation of India is reported, suggesting a trophic structure similar to that of a modern day terrestrial ecosystem. Expand
...
1
2
3
4
...

References

SHOWING 1-10 OF 32 REFERENCES
A probable pseudo-tribosphenic upper molar from the late Jurassic of China and the early radiation of the Holotheria
TLDR
A three-cusped, mammalian upper molar recovered from the type locality of Shuotherium dongi Chow and Rich, 1982 in the Late Jurassic, Upper Shaximiao Formation Sichuan, China indicates a greater antiquity and diversity of the Tribosphenida than previously thought. Expand
A Middle Jurassic mammal from Madagascar
The lower molars of tribosphenic mammals (marsupials, placentals and their extinct allies) are marked, primitively, by a basined heel (talonid) acting as the mortar to the pestle of a large innerExpand
Reassessment of the late Triassic symmetrodont mammal Woutersia
TLDR
Though too large to be attributed to W. butleri, this tooth exhibits a t a higher degree some characters already detected in the latter species, suggesting that it could still belong to Woutersia; but in that case, its sharing of some derived characters with upper molars of docodonts implies a t least a certain parallelism between the new family WOUtersiidae and primitive Docodonta. Expand
A tribosphenic mammal from the Mesozoic of Australia.
A small, well-preserved dentary of a tribosphenic mammal with the most posterior premolar and all three molars in place has been found in Aptian (Early Cretaceous) rocks of southeastern Australia. InExpand
Adelobasileus from the Upper Triassic of West Texas: the oldest mammal
ABSTRACT Adelobasileus cromptoni Lucas and Hunt, 1990 is based on an incomplete skull from the lower part of the Tecovas Member of the Dockum Formation near Kalgary, Crosby County, Texas. Its age isExpand
The first pre-Rhaetic therian mammal
The earliest mammals in the fossil record are recognized by their multicusped and multiple-rooted cheek teeth, and in south-west Britain they appear abruptly in sediments that postdate the RhaeticExpand
Dual origin of tribosphenic mammals
TLDR
Phylogenetic and morphometric analyses including these newly discovered taxa suggest a different interpretation: that mammals with tribosphenic molars are not monophyletic. Expand
The Triassic Reptile Hyperodapedon from Elgin: Functional Morphology and Relationships
TLDR
The rhynchosaur Hyperodapedon gordoni from the late Triassic of Elgin, northeast Scotland, was a squat 1.3 m long reptile with a specialized skull that had a good sense of smell and diurnal vision and a precision-shear bite. Expand
A Jurassic mammal from South America
TLDR
The discovery of a Jurassic mammal represented by a dentary, which is the first, to the authors' knowledge, from South America, indicates that the Australosphenida had diversified and were widespread in Gondwanaland well before the end of the Jurassic, and that mammalian faunas from the Southern Hemisphere already showed a marked distinction from their northern counterparts by the Middle to Late Jurassic. Expand
Discovery of a Late Jurassic Chinese mammal in the Upper Bathonian of England
Abstract The Forest Marble Formation of England, Upper Bathonian, has provided a large collection of mammalian teeth, among which at least five lower molars can be attributed to the genusExpand
...
1
2
3
4
...