Cylindroporella sugdeni Elliott，1957，早白垩纪中东大环藻——修订版

IF 4.1 3区地球科学 Q1 PALEONTOLOGY

Journal of Micropalaeontology Pub Date : 2018-01-17 DOI:10.5194/JM-37-181-2018

B. Granier

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引用次数: 6

摘要

摘要本文报道了1957年苏格德尼·艾略特（Cylindroporella sugdeni Elliott）的模式材料。完全缺乏不育的侧枝，因此缺乏Cylindroporella属的诊断特征，即在同一轮生中不育和可育的侧枝的交替，导致其被排除在Cylindropolella Johnson属之外，1954年，归属于Holosporella Pia属，1930年。最近的地层调查表明，最初报告为早白垩纪的地层类型在年龄上更准确地说是豪特里夫阶或可能是早巴雷米亚阶。

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Cylindroporella sugdeni Elliott, 1957, an Early Cretaceous Middle Eastern Dasycladalean alga – a revision

Abstract. The type material of Cylindroporella sugdeni Elliott, 1957, is revised. The total lack of sterile laterals and consequently the absence of the diagnostic feature of the genus Cylindroporella, i.e., the alternation of sterile and fertile laterals within the same whorl, leads to its exclusion from the genus Cylindroporella Johnson, 1954, and to its ascription to the genus Holosporella Pia, 1930. Recent stratigraphic investigations suggest that the stratum typicum originally reported as Early Cretaceous in age is more precisely Hauterivian or possibly Early Barremian in age.

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来源期刊

Journal of Micropalaeontology 生物-古生物学

CiteScore

4.30

自引率

5.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Micropalaeontology (JM) is an established international journal covering all aspects of microfossils and their application to both applied studies and basic research. In particular we welcome submissions relating to microfossils and their application to palaeoceanography, palaeoclimatology, palaeobiology, evolution, taxonomy, environmental change and molecular phylogeny.