Boreholes in Mississippian spiriferide brachiopods and their implications for Paleozoic gastropod drilling

被引：50

作者：

Baumiller, TK ^{[1
]}

Leighton, LR

Thompson, DL

机构：

[1] Univ Michigan, Museum Paleontol, Ann Arbor, MI 48109 USA

[2] Univ Michigan, Dept Geol Sci, Ann Arbor, MI 48109 USA

[3] Friends Univ Michigan Paleontol Museum, Ann Arbor, MI 48109 USA

来源：

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY | 1999年 / 147卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

brachiopods; Mississippian; gastropods; predation; parasitism;

D O I：

10.1016/S0031-0182(98)00165-5

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

Bored specimens of the spiriferide brachiopod genera Brachythyris and Spirifer from several localities of the Mississippian Fort Payne Formation (Kentucky, USA) represent 7.0% of the total sampled population. The boreholes are typically single, complete, circular in plan view, and with their long axes perpendicular to the valve. These traits and stereotypy with respect to the pedicle valve and the fold and sulcus are consistent with a predatory/parasitic origin of the holes. The presence of platyceratid gastropods in the Fort Payne localities with bored brachiopods, the previously documented drilling abilities of these gastropods, and the occurrence of a platyceratid snail attached to specimen of a bored Devonian brachiopod, Atrypa, argue for platyceratids as the most probable culprits. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：283 / 289

页数：7

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