Deltodus rugosus
Woodward, 1889
Classification: Holocephali Cochliodontiformes Cochliodontidae
Reference of the original description
Catalogue of the fossil fishes in the British Museum. Part. I. British Museum (Natural History): 474 p., fig., 17 pl.
Catalogue of the fossil fishes in the British Museum. Part. I. British Museum (Natural History): 474 p., fig., 17 pl.
Images of types
Description:
Citation: Deltodus rugosus Woodward, 1889: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 12/2024
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Deltodus rugosus sp. nov. ; “upper” dental plate, coronal aspect, twice nat. size, C. Limst.; Oreton. [ 42188], 22. Ditto; “lower” dental plate, coronal aspect, twice nat. size, [36193.]
Deltodus rugosus sp. nov. ; “upper” dental plate, coronal aspect, twice nat. size, C. Limst.; Oreton. [ 42188], 22. Ditto; “lower” dental plate, coronal aspect, twice nat. size, [36193.]
Description
Original description of Woodward, 1889 [2593]
Type. Upper and lower dental plates, shown in Pl. VI. figs. 21, 22. ' A very small species, the maximum transverse measurement of the supposed lower posterior dental plate being about 0-0011. Transverse ridges and fur-rows of the dental crown fine, not always continuous, more or less wavy. Posterior “ lower ” dental plate notably elongated in an antero-posterior direction, the gently rounded coronal ele-vation extending from the outer to the inner margin not immediately adjoining the antero-lateral border.
Form. & Loc. Carboniferous Limestone: Shropshire.
42186, 36193. Type specimens shown, of twice the natural size, in Pl. VI. figs. 21, 22, the first being an “ upper ” dental plate, the second a “ lower ”; Oreton.
Original description of Woodward, 1889 [2593]
Type. Upper and lower dental plates, shown in Pl. VI. figs. 21, 22. ' A very small species, the maximum transverse measurement of the supposed lower posterior dental plate being about 0-0011. Transverse ridges and fur-rows of the dental crown fine, not always continuous, more or less wavy. Posterior “ lower ” dental plate notably elongated in an antero-posterior direction, the gently rounded coronal ele-vation extending from the outer to the inner margin not immediately adjoining the antero-lateral border.
Form. & Loc. Carboniferous Limestone: Shropshire.
42186, 36193. Type specimens shown, of twice the natural size, in Pl. VI. figs. 21, 22, the first being an “ upper ” dental plate, the second a “ lower ”; Oreton.
References
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, in press
DOI: 10.1017/pab.2024.1
Catalogue of the fossil fishes in the British Museum. Part. I. British Museum (Natural History): 474 p., fig., 17 pl.
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, in press
DOI: 10.1017/pab.2024.1
Catalogue of the fossil fishes in the British Museum. Part. I. British Museum (Natural History): 474 p., fig., 17 pl.
