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II.—Notes on Drepanaspis Gmündenensis, Schlüter

Published online by Cambridge University Press:  01 May 2009

R. H. Traquair
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Extract

This most remarkable fish, from the Lower Devonian Roofing Slate (Hunsrückschiefer) of Gmünden, in Western Germany, was named, but very imperfectly described, by Schlüter in 1887, as his material was at that time of a very fragmentary nature. He apparently considered the creature to be allied to Cephalaspis. In Dr. Smith Woodward's “Catalogue” (pt. ii, 1891, p. 311) it is only mentioned by name along with a number of other imperfectly known forms (Aspidichthys, Anomalichthys, etc.) which he considered as “perhaps for the most part” referable to the Coccosteidæ.

Type
Original Articles
Information
Geological Magazine , Volume 7 , Issue 4 , April 1900 , pp. 153 - 159
Copyright
Copyright © Cambridge University Press 1900

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References

page 159 note 1 In Coccosteus itself the pectoral spine is so small that in my description of the skeleton of C. decipiens (Ann. Mag. Nat. Hist., Feb., 1890) I described and figured it merely as a process of the interlateral plate, from which it is, however, quite distinct. There certainly is a ‘Bruststachel’ in Coccosteus, but as it is not only very small, but absolutely fixed, it can hardly be called a ‘Ruderorgan.’