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Articulated thelodonts (Agnatha) of Scotland

Published online by Cambridge University Press:  03 November 2011

T. Märss  and
A. Ritchie
T. Märss
Affiliation:
Institute of Geology, Estonia Avenue 7, Tallinn EE0001, Estonia.
A. Ritchie
Affiliation:
The Australian Museum, 6-8 College Street, Sydney South, N.S.W.2000, Australia.
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Abstract

Articulated thelodonts, Loganellia scotica (Traquair), Shielia gen.n. taiti (Stetson), Lanarkia horrida Traquair, L. spinulosa Traquair and Turinia pagei (Powrie) from the Silurian and Devonian of Scotland are re-described. A new species, Lanarkia lanceolata sp.n. from the Wenlock, Lower Silurian, is established. For each species, diagnosis is specified, varieties of scale morphology are given, the branchial area is described and body morphology is detailed. A paired ventral fin in Shielia gen.n. taiti and Lanarkia lanceolata sp.n. has been discovered. A new reconstruction of Loganellia and Shielia, and diagnosis for thelodonts from Scotland are given. The locality list of Scottish agnathans is reviewed and the biostratigraphical distribution discussed.

Keywords

Palaeozoic agnathans (thelodonts)morphologysquamationbiostratigraphy
Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 88 , Issue 3 , 1997 , pp. 143 - 195
Copyright
Copyright © Royal Society of Edinburgh 1997

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