Chinese Journal of Nature ›› 2009, Vol. 31 ›› Issue (4): 201-.
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ZHANG Zhifei①, WANG Yan②, Christian C Emig ③
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Abstract: Lingulids(Lingulidae)made their first appearance in the Early Cambrian, which are ordinarily considered as one of the most ancient “living fossils” based on the characteristic shell shape and the supposed absence of morphoanatomical changes. Comparison between the morphoanatomical characters of the Early Cambrian Lingulide Lingulella chengjiangensis and Lingulellotreta malongensis from the Chengjiang Lagersttte of southern China, does little to support the widespread notion that the morphology of the lineage has remained remarkably constant since their first occurrence.
Key words: Early Cambrian, Chengjiang Lagersttte, Lingulidae, living fossils, evolution
ZHANG Zhi-Fei;WANG Yan;Christian C Emig . Lingulids: the Evolutionary “Living Fossils”[J]. Chinese Journal of Nature, 2009, 31(4): 201-.
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https://www.nature.shu.edu.cn/EN/Y2009/V31/I4/201