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Anemetocrinus N.G. A Five-armed Poteriocrinid from the Lower Carboniferous Limestones of Scotland

Published online by Cambridge University Press:  01 May 2009

James Wright
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Extract

In the Scottish Lower Carboniferous limestones there are known to occur at least sevenspecies of Dicyclic Inadunate crinoids belonging to the family Poteriocrinidae, one of the main characters of which is the possession of five simple unbranched arms. One species is also known from the Carboniferous of the Isle of Man. Two of the Scottish species have been assigned to the genus Ulocrinus, viz. U. globularis de Koninck and U. doliolus Wright. The former species is now referred to U. bockschii (Geinitz), which has priority, and the Scottish specimens as they commonly occur appear to be indistinguishable from it. The cup in these two species is specially characteristic, the shape being for the most part globular and the anal area, while sometimes of normal character, is more commonly occupied by a large RA with anal X and rt surmounting it and comparatively small. The arms are rather long, uniserial, and formed of narrow cuneiform brachials (Plate XIV, Figs. 1–6). (Bather, 1916–17; Wright, 1927, 1936.)

Type
Original Articles
Information
Geological Magazine , Volume 75 , Issue 8 , August 1938 , pp. 337 - 346
Copyright
Copyright © Cambridge University Press 1938

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References

REFERENCES

Bather, F. A., 1916–1917. “Some British Species of Ulocrinus ,” Trans. Geol. Soc. Glasgow, xvi, 207.Google Scholar
Jaekel, O., 1895. “Beiträge zur Kenntnis der paläozoischen Crinoiden Deutschlands,” Palaeont. Abhandl. Jena, neue Folge, iii, 1–116, pl. vii.Google Scholar
Laudon, L. R., 1933. “The Stratigraphy and Palaeontology of the Gilmore City Formation of Iowa,” University of Iowa Studies, xv, 2.Google Scholar
Laudon, L. R., and Beane, B. H., 1937. “The Crinoid Fauna of the Hampton Formation at LeGrand, Iowa,” University of Iowa Studies, xvii, 6.Google Scholar
Miller, S. A., and Gurley, W. F. E., 1895. “Descriptions of New Species of Palaeozoic Echinodermata,” Illinois State Mus. Nat. Hist. Bull. No. 6, pl. iv, figs. 12 and 13.Google Scholar
Miller, S. A., and Gurley, W. F. E., 1896. “New Species of Echinodermata, etc.,” Illinois State Mus. Nat. Hist. Bull. No. 10, pl. v, figs. 10 and 11.Google Scholar
Schmidt, W. E., 1930. “Die Echinodermen des deutschen Unterkarbons,” Jahrb. Preuss. Geol. Landesanst., 122, 1–92, pls. 1–3.Google Scholar
Trautschold, H., 1867. “Einige Crinoideen und andere Thierreste im Gouvernement Moskau,” Bull. Soc. Imp. des Nat. de Moscou, XL, iii, 1–49, pls. i–iv.Google Scholar
Trautschold, H., 1879. “Die Kalkbruche von Myatsehkowa,” Eine Monographic des Oberen Bergkalks, Nouv. Mem. Soc. Nat. Moscou, xiv, 101–180, pls. xiv–xv.Google Scholar
Wachsmuth, C., and Springer, F., 1886. “Revision of the Palaeocrinoidea,” Proc. Acad. Nat. Sci. Philad., iii, 249.Google Scholar
Wetherby, A. G., 1880. “Descriptions of New Crinoids from the Cincinnati Group of the Lower Silurian and Sub-Carboniferous of Kentucky,” Journ. Cincin. Soc. Nat. Hist. (4), 245–253, pl. xvi.Google Scholar
Wood, Elvira. 1914. “The Use of Crinoid Arms in Phylogeny,” Ann. New York Acad. Sci., xxiv, 1–17, pls. i–iv.CrossRefGoogle Scholar
Wright, J., 1927. “Some Variations in Ulocrinus and Hydreionocrinus ,” GEOL. MAG., LXIV, 353–372.CrossRefGoogle Scholar
Wright, J., 1934. “New Scottish and Irish Fossil Crinoids,” Geol. Mag., LXXI, 241–268.CrossRefGoogle Scholar
Wright, J., 1936. “New Scottish Carboniferous Crinoids,” Geol. Mag., LXXIII, 385–412.CrossRefGoogle Scholar
Wright, J., 1938. “Notes on Some British Platycrinidae ,” Geol. Mag., LXXV, 285.Google Scholar