文章基本信息

标题：Additional evidence for the drilling behavior of Paleozoic gastropods
本地全文：下载
作者：FOREST J. GAHN ; ALEX FABIAN ; TOMASZ K. BAUMILLER 等
期刊名称：Acta Palaeontologica Polonica
印刷版ISSN：0567-7920
电子版ISSN：1732-2421
出版年度：2003
卷号：48
期号：1
页码：156-156
语种：English
出版社：Institute of Paleobiology PAS
摘要：Although the record of Paleozoic drillholes is long and extensive, evidence pertaining to the identity of the drillers is sparse. The most conclusive evidence, a driller "caught in the act", has been documented only once (Baumiller 1990). In that example, a drillhole in the calyx of a crinoid was found directly beneath an attached platyceratid gastropod. Additional evidence for drilling by platyceratids has been circumstantial, i.e., based on the association of platyceratids with certain blastoids and crinoids, and the presence of drillholes in other crinoid and blastoid taxa. To a skeptic, the lack of congruence between drilled and platyceratid-infested crinoids and blastoids is not sufficient evidence that platyceratids were the drillers. More conclusive evidence requires examples of drillholes in taxa that are known to have been platyceratid-infested, preferably from localities where both infested specimens and drilled specimens co-occur.