覆盖志留系腹足动物的苔藓虫:一个分类窗口及其对生物多样性的影响

IF 1.8 3区地球科学 Q2 PALEONTOLOGY

Acta Palaeontologica Polonica Pub Date : 2022-01-01 DOI:10.4202/app.00964.2021

C. Buttler, L. Cherns, L. McCobb

引用次数: 1

摘要

志留系腹足动物外壳的苔藓虫:一个地层学窗口及其对生物多样性的影响。古生物学报67 (X): xxx-xxx。在英国什罗普郡德尔伯里采石场采集的勒德洛系列上Leintwardine组的志留系转角腹足动物，都被冠状体苔藓虫(Homotrypa cochlea sp. 11)包裹。没有发现苔藓虫包裹任何其他壳类动物，因此似乎优先选择腹足动物的壳。对这两种生物之间的关系进行了研究，以确定苔藓虫是否以死去的、空的软体动物壳为基质，它们是否与活的腹足类动物共生，或者这些壳是否由非腹足类动物宿主居住。有证据表明苔藓虫包裹着活着的腹足类动物的外壳，但在软体动物死后继续生长，外壳可能被贝壳虫占据。苔藓虫包裹着腹足类动物的壳，在软体动物死亡后，内部腔变成了一个“封闭”的微环境，壳在这里形成，有时再结晶的壳被保存下来。这些腹足动物的文石壳在成岩作用早期容易溶解，没有一种腹足动物是没有苔藓虫外壳的。在大多数早古生代壳类动物群中，软体动物的数量明显稀少，因此，苔藓生长导致了软体动物的局部分类窗口——即所谓的“软体动物缺失”现象。

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来源期刊

Acta Palaeontologica Polonica 地学-古生物学

CiteScore

2.80

自引率

5.60%

发文量

审稿时长

12.5 months

期刊介绍： Acta Palaeontologica Polonica is an international quarterly journal publishing papers of general interest from all areas of paleontology. Since its founding by Roman Kozłowski in 1956, various currents of modern paleontology have been represented in the contents of the journal, especially those rooted in biologically oriented paleontology, an area he helped establish. In-depth studies of all kinds of fossils, of the mode of life of ancient organisms and structure of their skeletons are welcome, as those offering stratigraphically ordered evidence of evolution. Work on vertebrates and applications of fossil evidence to developmental studies, both ontogeny and astogeny of clonal organisms, have a long tradition in our journal. Evolution of the biosphere and its ecosystems, as inferred from geochemical evidence, has also been the focus of studies published in the journal.