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The Scottish Species of Allagecrinus

Published online by Cambridge University Press:  01 May 2009

James Wright
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Extract

SINCE the publication of Carpenter and Etheridge’s paper in 1881, in which the characters of Allagecrinus were first made known to us, few records have been noted of any other Scottish specimens belonging to the genus. The specimens figured and described by the above authors were obtained from shale collected by the late Mr. Bennie of the Scottish Geological Survey, the localities being Carlops; Catcraig, near Dunbar; Burlage, near Dunbar; Whitebaulks, near Linlithgow; Addiewell and Roscobie, all in what may be called the East of Scotland; together with a few from Howood and Carluke in the West of Scotland.

Type
Original Articles
Information
Geological Magazine , Volume 69 , Issue 8 , August 1932 , pp. 337 - 366
Copyright
Copyright © Cambridge University Press 1932

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References

page 337 note 1 Annals and Mag. Nat. Hist., 5, 281–97.Google Scholar

page 338 note 1 “ Neue Beiträge zur Kenntnis der Permischen Echinodermen von Timor, I, Allagecrinus” 1929; and III, “ Hypocrininae, Paracatillocrinus und Allagecrinus dux,” 1930.Google Scholar

page 338 note 2 “ Die Permischen von Timor,” 1924.Google Scholar

page 338 note 3 “ Extrait de tome xlvi des Bulletins du Comité Geologique,” 181–91, 1927.Google Scholar

page 338 note 4 The American Geologist, xvi, No. 4, 219–20.Google Scholar

page 338 note 5 Illinois State Geol. Survey, Report of Investigations, No. 21, Urbana, Illinois, 1930.Google Scholar

page 338 note 6 Ill. State Mus. Nat. Hist. Bull., 40–3.Google Scholar

page 338 note 7 Smithsonian Miscellaneous Coll., lxxvi, No. 3.Google Scholar

page 339 note 1 Trans. Geol. Soc. Glas., xvi, iii, 1917–1918.Google Scholar

page 340 note 1 Geol. Surv. Memoirs: “ Economic Geology of the Ayrshire Coalfields,” Area III, 1930, 31.Google Scholar

page 349 note 1 I have tried to determine whether there are two plates here—an upper and lower—but cannot see any suture line. Although invisible, it is probable that there is a suture about the middle of the long anal plate shown on Text fig.12. Since studying these specimens, I have found another calyx which shows that in some cases at least there were two anal plates, a lower, somewhat broad plate, and an upper tapering one. The specimen in question has only the lower plate in position with the joint surface for the upper plate clearly visible.

page 351 note 1 Compare with our Plate XXIII, Figs. 14, 15, 16, and 17.

page 351 note 2 Dr. Bather has interpreted the pore in Haplocrinus and Allagecrinus as? anus + hydropore, but Professor Wanner now thinks from the study of his Timor Allagecrini that the pore subserved one function only, i.e. hydropore, and that the orals had the power of opening themselves to a certain degree.

page 363 note 1 Wish regard to Rowley's A.americanus., probably Mr. Weller would not have removed this species into another genus had he been aware of the presence of an oral arch plate, etc., as has been shown here to be typical of A.austinii.