Dasyclad-like problematic fossils from the lower Cambrian of North Greenland

被引:6
作者
Peel, John S. [1 ]
机构
[1] Uppsala Univ, Dept Earth Sci Palaeobiol, S-75236 Uppsala, Sweden
来源
PALAEONTOLOGISCHE ZEITSCHRIFT | 2014年 / 88卷 / 04期
基金
瑞典研究理事会;
关键词
Problematica; Alga; Stem-group Dasycladales; Lower Cambrian; North Greenland; Taxonomy; SOUTH-AUSTRALIA; ALGAE; MORPHOLOGY; ORIGINS; CORAL;
D O I
10.1007/s12542-013-0202-4
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
The problematic fossil Kordesphecia nyeboensis gen. et sp. nov. from the lower Cambrian of North Greenland resembles the slightly younger, putative dasycladalean alga Amgaella Korde, 1957 in terms of its spirally arranged rhombic cells and central cavity. It differs in adding new cells through the sequential addition of roofing plates ('shingles') to pre-existing cell rows rather than encrusting lateral branches in dasycladalean fashion, in which character it seems comparable to the contemporaneous Lenaella Korde, 1959) from Siberia of unknown affinity. Kordesphecia is classified as incertae sedis but may be a stem-group dasycladalean.
引用
收藏
页码:367 / 374
页数:8
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