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Steganocrinus westheadi n.sp. and Note on a rare Crinoid and a Blastoid from the Carboniferous Limestone of Coplow Knoll, Clitheroe

Published online by Cambridge University Press:  01 May 2009

James Wright
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Extract

The purpose of this note is to place on record two rare crinoids and a blastoid recently found at Coplow Knoll, Clitheroe. One of the crinoids belongs to a new species of Camerata now named Steganocrinus westheadi in honour of its finder, Mr. Stanley Westhead, of Clitheroe. The genus Steganocrinus has not hitherto been recorded from English Carboniferous rocks so that its occurrence at Coplow is noteworthy. The other crinoid, here temporarily assigned to “Pachylocrinus” conicus (Phillips), shows a considerable portion of the arms and was found by the author on a visit to Coplow last year. No other specimen of this species so complete has yet been recorded. On a later visit in the autumn of the same year a single finely preserved specimen of a blastoid was found. In its general characters this specimen does not appear to differ from Orophocrinus pentangularis (Miller), and in ordinary circumstances would call for no special comment here. Blastoids, however, are so rare at Coplow that the occurrence of this specimen, the only one ever found by the author at, or known to him from, this locality, is deemed worthy of record.

Type
Articles
Information
Geological Magazine , Volume 84 , Issue 2 , April 1947 , pp. 101 - 105
Copyright
Copyright © Cambridge University Press 1947

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References

REFERENCES

Bailey, W. H., 1886. On a New Species of Orophocrinus (Pentremites) in Carboniferous Limestone, County Dublin. Also Remarks upon Codaster trilobatus (McCoy) from Carboniferous Limestone, County Kilkenny. Journ. Roy. Geol. Soc. Ireland, vii, pl. iv, 71–3.Google Scholar
de Koninck, L. G., and Le Hon, H., 1854. Recherches sur les Crinoides du Terrain Carbonifere de la Belgique. Mem. Acad. Roy. de Belg., Bruxelles.Google Scholar
Etheridge, R., and Carpenter, P. H., 1886. Catalogue of the Blastoidea in the Geological Department, British Museum (Nat. Hist.), pls. i–xix, 1–322, with full bibliography.Google Scholar
Jaekel, O., 1918. Phylogenie und System der Pelmatozoen. Paleont. Zeitschr., 3, Heft I, 1–128.Google Scholar
Kirk, E., 1940. Seven New Genera of Carboniferous Crinoidea Inadunata. Journ. Wash. Acad. Sci., 30, 321–334.Google Scholar
Kirk, E., 1943. A Revision of the Genus Steganocrinus, Journ. Wash. Acad. Sci., 33, 259–265.Google Scholar
Kirk, E., 1944. Cytidocrinus, new name for Cyrtocrinus Kirk, Journ. Wash. Acad. Sci., 34 15th March, No. 3.Google Scholar
Miller, J. S., 1821. A Natural History of the Crinoidea, Bristol.Google Scholar
Moore, R. C., and Laudon, L. R., 1941. Evolution and Classification of Paleozoic Crinoids. Geol. Soc. America, Special Paper No. 46.Google Scholar
Parkinson, D., 1926. The Faunal Succession in the Carboniferous Limestone and Bowland Shales at Clitheroe and Pendle Hill. Quart. Journ. Geol. Soc., lxxxii, pls. xii–xvii, 188–249.CrossRefGoogle Scholar
Phillips, J., 1836. Illustrations of the Geology of Yorkshire, pt. ii, London.Google Scholar
Portlock, J. E., 1843. Report on the Geology of the county of Londonderry and of parts of Tyrone and Fermanagh, Dublin.Google Scholar
Trautschold, H., 1867. Einige Crinoideen und andere Thierreste des jungeren Bergkalks im Gouvernement Moskau. Soc. Imp. Nat. Moscou, Bull. 3, pls. 1–5, 1–49.Google Scholar
Trautschold, H., 1879. Die Kalkbruche von Miatschkowa, Eine Monographie des oberen Bergkalks. Soc. Nat. Moscou Nouv. Mem., 14, pls. 12–18, 101–180.Google Scholar
Wachsmuth, C., and Springer, F., 1897. The North American Crinoidea Camerata. Mem. Mus. Comp. Zool., Harvard, 20 and 21, with atlas.Google Scholar
Wright, J., 1928. A Rare Euryocrinus from the Carboniferous Limestone of Coplow Knoll, Clitheroe. Geol. Mag., lxv, 246–254.CrossRefGoogle Scholar
Wright, J., 1942. New British Carboniferous Crinoids, Geol. Mag., lxxix, 4 pls., 269–283.CrossRefGoogle Scholar