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Dwardius sudindicus
Taxonomy
Dwardius sudindicus was named by Underwood et al. (2011). Its type specimen is DUGF/21, a tooth, and it is a 3D body fossil. Its type locality is Northwest of Garudamanglam, which is in a Cenomanian offshore mudstone in the Karai Formation of India.
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Dwardius sudindicus Underwood et al. p. 544 figs. 5 A-J |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Dwardius sudindicus Underwood et al. 2011
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. J. Underwood et al. 2011 | "Lamniform with large teeth showing moderate monognathic and dignathic heterodonty. Parasymphyseal teeth variable in size, some relatively large. All teeth to some degree asymmetrical, with a degree of mesiodistal curvature of the main cusp of all teeth other than some upper anteriors and lower laterals. Upper and lower anterior teeth with lingual curvature of main cusp. Main cusp higher than wide in all teeth and flanked by a single pair of lateral cusplets, which are of similar size on both sides of tooth. Cusplets of similar height to width, triangular, sharply pointed, and divergent in all teeth. Additional incipient cusplets present only on large lower lateral teeth. Prominent neck present at the base of the lingual face of all teeth. No ornament on any teeth. Root robust and ‘U’-shaped with rounded tips of root lobes. Lingual bulge present but not strongly protruding with one or more foramina but no groove." |
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Wagner 2023, Hendy et al. 2009, Carroll 1988 | |||||
Age range: Early/Lower Cenomanian or 99.60000 to 93.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | India (Tamil Nadu) | Dwardius sudindicus (type locality: 110178) |