The British Silurian Crinoidea

Monographs of the Palaeontographical Society Pub Date : 2012-12-31 DOI:10.1080/25761900.2022.12131818

S. Donovan, Rosanne E. Widdison, D. N. Lewis, F. E. Fearnhead

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引用次数: 1

Abstract

ABSTRACT In Part 3, we describe the British Silurian crinoids of the subclass Camerata, including the orders Diplobathrida (five genera, nine species) and Monobathrida (12 genera, 34 species), and morphotaxa based on disarticulated columnals and pluricolumnals (four morphogenera, nine morphospecies), including those taxa left in open nomenclature. Six new nominal species of monobathrid are described, namely the periechocrinid Periechocrinus? bulbosus (Ramsbottom MS) sp. nov., the carpocrinids Carpocrinus verminosus Widdison sp. nov. and Carpocrinus ramsbottomi Widdison sp. nov., the eucalyptocrinitids Calliocrinus rugiferus (Ramsbottom MS) sp. nov. and Eucalyptocrinites aberrans Widdison sp. nov., and the hapalocrinid Cordylocrinus rugobrachialis (Ramsbottom MS) sp. nov. A new crinoid columnal morphospecies is named Floricolumnus (col.) lefewi Donovan sp. nov. In an addendum to Part 2, the dendrocrinid 'Dendrocrinus' obscurus sp. nov. is described (Middle Llandovery Newlands Farm Formation, Ayrshire). About 120 species of crinoid are identified from the Silurian of the British Isles including those in open nomenclature and columnal morphotaxa. Over half are known from the Much Wenlock Limestone Formation of Dudley, Worcestershire.

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英属志留纪克里诺纪

第三部分介绍了英国志留纪的菊科，包括双石竹目(5属9种)和单石竹目(12属34种)，以及以断节柱状和多柱状为基础的形态分类群(4个形态属9种)，包括开放命名的分类群。本文描述了6个新的单卵蛾名义种，即卵卵蛾属。一种新的菊科植物柱状形态种被命名为Floricolumnus (col.) lefewi Donovan sp. 11 .(第2部分的增增本)。描述了在艾尔郡中部Llandovery Newlands Farm Formation发现的树突蛙'Dendrocrinus' obscurus sp. 11 .。从英伦三岛志留系已鉴定出120种海百合，包括开放命名和柱状形态分类。超过一半的岩石来自伍斯特郡达德利的多温洛克石灰岩地层。

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Monographs of the Palaeontographical Society

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