Carniaster orchardi new genus and species (Echinodermata:Asteroidea), the first triassic asteroid from the western hemisphere

被引：0

作者：

Blake, DB ^{[1
]}

Zonneveld, JP

机构：

[1] Univ Illinois, Dept Geol, Urbana, IL 61801 USA

[2] Geol Survey Canada, Calgary, AB T2L 2A7, Canada

来源：

JOURNAL OF PALEONTOLOGY | 2004年 / 78卷 / 04期

关键词：

D O I：

10.1666/0022-3360(2004)078<0723:CONGAS>2.0.CO;2

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

Carniaster orchardi n. gen. and sp. (Echinodermata: Asteroidea) is only the fourth Triassic asteroid known from material complete enough to warrant a generic name. Data indicating familial and ordinal positions are not available. All four Triassic genera belong to the exclusively post-Paleozoic crown group. Carniaster does not appear to differ significantly from other described Triassic genera. and it probably represents a broadly basal lineage within the crown group diversification. Available morphological data suggest no ecologic parameters that would be unusual among living asteroids. Carniaster is the first complete Triassic asteroid known from beyond Europe.

引用

页码：723 / 730

页数：8

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