Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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A New Cynodont Record from the Lower Triassic Panchet Formation, Damodar Valley


Affiliations
1 Geological Survey of India, Op : Orissa, Nayapalli, Unit VIII, Bhubaneswar, India
2 Palaeontology Division - I, Geological Survey of India, 15 A & B Kyd Street, Kolkata - 700 016, India
     

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This paper reports the find of a new non-mammalian cynodont from the Lower Triassic Panchet Formation of the Damodar valley, West Bengal, India. The fossil, recovered from a clay pellet rich calcareous sandstone bed, is a part of left lower jaw having five post canines that are damaged to various extents. A combination of mammal-like advanced characters such as much enlarged dentary, reduced post dentary bones, high coronoid process, large masseteric fossa, each post canine with a large central cusp flanked by a distal and a mesial accessory cusps with two additional lingually positioned cingular cusps, incipient ischolar_main division and clearly demarcated crown-ischolar_main juncture prompted to erect a new taxon Panchetocynodon damodarensis gen. et sp. nov.

Keywords

Cynodont, Lower Triassic, Panchet, Damodar Valley, India.
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  • A New Cynodont Record from the Lower Triassic Panchet Formation, Damodar Valley

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Authors

D. P. Das
Geological Survey of India, Op : Orissa, Nayapalli, Unit VIII, Bhubaneswar, India
Abir Gupta
Palaeontology Division - I, Geological Survey of India, 15 A & B Kyd Street, Kolkata - 700 016, India

Abstract


This paper reports the find of a new non-mammalian cynodont from the Lower Triassic Panchet Formation of the Damodar valley, West Bengal, India. The fossil, recovered from a clay pellet rich calcareous sandstone bed, is a part of left lower jaw having five post canines that are damaged to various extents. A combination of mammal-like advanced characters such as much enlarged dentary, reduced post dentary bones, high coronoid process, large masseteric fossa, each post canine with a large central cusp flanked by a distal and a mesial accessory cusps with two additional lingually positioned cingular cusps, incipient ischolar_main division and clearly demarcated crown-ischolar_main juncture prompted to erect a new taxon Panchetocynodon damodarensis gen. et sp. nov.

Keywords


Cynodont, Lower Triassic, Panchet, Damodar Valley, India.

References