A possible archaic precursor of the octocoral structural plan from the Ordovician of Estonia

IF 2.3 2区地球科学 Q1 PALEONTOLOGY

Papers in Palaeontology Pub Date : 2024-09-10 DOI:10.1002/spp2.1593

Sergey V. Rozhnov

引用次数: 0

Abstract

A new species and genus of colonial coral, Lindaphylon solovjevi, from the Upper Ordovician of Estonia is described in detail. The colony has a zonation similar to the zonation structure of the mesogleal skeleton of octocorals, since it consists of a narrow axis and a surrounding wide cortex of small calcite sclerites and a system of large solenia. Corallites present 12 sclerosepta in a wide shallow cup. A new family Lindaphylonidae and an order Lyndaphylonaceae are based on these features, and a new order placed in the subphylum Anthozoa as incertae sedis. A comparative study of skeleton formation and mesenteric apparatus symmetry in different groups of coral polyps is considered in detail.

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爱沙尼亚奥陶纪八瓣珊瑚结构图的可能前身

本文详细描述了爱沙尼亚上奥陶纪的一个新种和新属--Lindaphylon solovjevi。该珊瑚群的分带结构类似于八珊瑚中柱骨架的分带结构，因为它由一个狭窄的轴和周围由小方解石硬片组成的宽皮层以及一个大的单孔系统组成。珊瑚虫在宽大的浅杯中有 12 个硬壳。根据这些特征，建立了一个新的林达菲龙科（Lindaphylonidae）和一个林达菲龙目（Lyndaphylonaceae），并将这一新目置于安氏动物亚门（Anthozoa）中，作为非现生动物（incertae sedis）。对不同珊瑚虫群的骨骼形成和中肠器对称性进行了详细的比较研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Papers in Palaeontology PALEONTOLOGY-

CiteScore

4.50

自引率

4.30%

发文量

期刊介绍： Papers in Palaeontology is the successor to Special Papers in Palaeontology and a journal of the Palaeontological Association (www.palass.org). The journal is devoted to the publication of papers that document the diversity of past life and its distribution in time and space. Papers in Palaeontology is devoted to the publication of papers that document the diversity of past life and its distribution in time and space. As a sister publication to Palaeontology its focus is on descriptive research, including the descriptions of new taxa, systematic revisions of higher taxa, detailed biostratigraphical and biogeographical documentation, and descriptions of floras and faunas from specific localities or regions. Most contributions are expected to be less than 30 pp long but longer contributions will be considered if the material merits it, including single topic parts. The journal publishes a wide variety of papers on palaeontological topics covering: palaeozoology, palaeobotany, systematic studies, palaeoecology, micropalaeontology, palaeobiogeography, functional morphology, stratigraphy, taxonomy, taphonomy, palaeoenvironmental reconstruction, palaeoclimate analysis, biomineralization studies.