A Reconstruction of the Lophophore of Devonian Rhynchonellids (Brachiopoda) by Using X-Ray Micro-CT

被引：3

作者：

Pakhnevich, A. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Borissiak Paleontol Inst, Profsoyuznaya ul 123, Moscow 117997, Russia

来源：

PALEONTOLOGICAL JOURNAL | 2017年 / 51卷 / 02期

基金：

俄罗斯科学基金会;

关键词：

lophophore; soft tissue; Sharovaella mirabilis; micro-CT; contrast inclusions; SOFT-PART PRESERVATION; SOUTH CHINA; PEDICLE; ENGLAND; TISSUE; FAUNA;

D O I：

10.1134/S0031030117020113

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

The X-ray microtomographic study has revealed contrast inclusions (possibly iron compounds) in several shells of Devonian (Emsian-Famennian) rhynchonellids (Brachiopoda) from Transcaucasia. Judging by the location of inclusions, they may correspond to soft tissues of lophophores. The spire-shaped inclusion in the shell of the holotype of the Late Devonian Sharovaella mirabilis Pakhnevich, 2012 has typical features of spirolophe and is interpreted as a part of one of lophophore spires. This find suggests that in the Late Devonian the spirolophe already existed in rhynchonellids. The dorsoventrally directed spirolophous lophophore is an ancient conservative feature of the order Rhynchonellida.

引用

页码：143 / 154

页数：12

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