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Description: | Craighead Inlier, Girvan, Ayrshire, Scotland Lady Burn Starfish Beds near the top of the Drummock Group, Farden Member, South Threave Formation, Drummock Group, bed CL/A2, anceps zone,Rawtheyan, Ordovician Dr Julliette Shackleton identified this on 24th November 2000 by email: "Hi Neil
Re: starfish - you've got a Urasterella thraivensis Spencer (long
spindly one) and the other is Promopalaeaster elizae Spencer. The
Promopalaeaster doesn't have four well-developed rows of tube feet in the
distal arm, but the proximal arm region shows the typical slanted
ambulacral ridges that indicate four rows were developed proximally.
They are both nice specimens but the Promopalaeaster is excellent because
it is rare to see so many ambulacrals visible on the oral surface in these
starfish (usually the adambulacral collapse inwards and cover the groove)." | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | ECHMASTEZMISC : FOSSIL : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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