德国南部上侏罗统微棘虫Schweigert和Schlampp, 2020(蛛形虫科，细尾虫科)

Q2 Earth and Planetary Sciences

Volumina Jurassica Pub Date : 2020-12-18 DOI:10.7306/vj.18.6

G. Schweigert, Victor Schlampp

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引用次数: 0

摘要

报道了在Franconia最顶端Platynota带或底部Hypselocyclum带的床层中发现的微螺，与新近引进的晚侏罗世aspidoceratoid鹦鹉螺ge - nus Hypowaagenia Schweigert and Schlampp, 2020相对应。这一记录表明，这些外来的菊石发现并不是长期漂流的坏死性浮游生物的贝壳，而是来自特提斯移民后散布在这一地区的动物。

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A microconchiate Hypowaagenia Schweigert and Schlampp, 2020 (Aspidoceratidae, Hybonoticeratinae) from the Upper Jurassic of Southern Germany

The previously unknown microconch which corresponds to the recently introduced Late Jurassic aspidoceratoid ammonite ge nus Hypowaagenia Schweigert and Schlampp, 2020, is reported from beds of the topmost Platynota Zone or basal Hypselocyclum Zone of Franconia. This record indicates that these exotic ammonite findings are not of long-drifting necroplanktonic shells, but stem from animals that have spread over this area after immigration from the Tethys.

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来源期刊

Volumina Jurassica Earth and Planetary Sciences-Stratigraphy

CiteScore

3.40

自引率

0.00%

发文量