BARYCRINUS (CRINOIDEA) FROM THE LOWER CARBONIFEROUS OF ENGLAND

被引:14
|
作者
DONOVAN, SK [1 ]
VELTKAMP, CJ [1 ]
机构
[1] UNIV LIVERPOOL,DEPT ENVIRONM & EVOLUT BIOL,LIVERPOOL L69 3BX,ENGLAND
关键词
D O I
10.1017/S0022336000020059
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
The Early Carboniferous (Mississippian) cyathocrinine cladid crinoid Barycrinus, which is common in North America, has hitherto been recognized from Britain only on the evidence of one species, Barycrinus ribblesdalensis (Wright), based on rare dorsal cups. Barycrinus sp. pluricolumnals and plurimeres are common in the Salthill Cap Beds (Chadian), Salthill Quarry, Clitheroe, Lancashire, but are not conspecific with B. ribblesdalensis. Salthill ossicles are never preserved as individual columnals due to the relative weakness of the intermeric versus the longitudinal ligaments.
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页码:988 / 992
页数:5
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