Skip to content Skip to navigation

Article: Aspects of crinoid palaeontology of the North Esk Inlier, Scotland (Silurian, Llandovery, Telychian)

Publication: Palaeontology
Volume: 54
Part: 2
Publication Date: March 2011
Page(s): 241 252
Author(s): Stephen K. Donovan, Fiona E. Fearnhead, Euan N. K. Clarkson and Mark Donovan
Addition Information

How to Cite

DONOVAN, S. K., FEARNHEAD, F. E., CLARKSON, E. N. K., DONOVAN, M. 2011. Aspects of crinoid palaeontology of the North Esk Inlier, Scotland (Silurian, Llandovery, Telychian). Palaeontology54, 2, 241–252.

Online Version Hosted By

Wiley Online Library
Get Article: Wiley Online Library [Pay-to-View Access] |

Abstract

The described fauna of well-preserved Llandovery (Telychian) echinoderms from the North Esk Inlier, including six crinoids, one echinoid and seven starfish species, is mainly allochthonous. Most of these taxa are known only from starfish beds, channel fill deposits probably representing submarine mass flows and preserving a biota probably derived from elsewhere, presumably shallower water. Only one crinoid species, Pisocrinus cf. campana Miller, is recognized as a common fossil away from the starfish beds and is a biostratigraphic marker for the base of the Wether Law Linn Formation, forming part of the Skenidioides-Cyrtia Association. Crinoid columnals preserved perpendicular to bedding (that is, in putative life position) in Lamont’s bivalve bed, Deerhope Formation, are tentatively interpreted as being in situ by comparison with a similar occurrence in the Silurian of Arisaig, Nova Scotia. Two new species of crinoid are described, the cladid Dendrocrinus? sp. and the columnal morphospecies Pentagonocyclicus (col.) lamonti sp. nov.
PalAss Go! URL: http://go.palass.org/5fy | Twitter: Share on Twitter | Facebook: Share on Facebook | Google+: Share on Google+