First record of Pachydiscus noetlingi Kennedy, 1999 (Ammonoidea) from the Maastrichtian type area (the Netherlands)

被引:3
|
作者
Jagt, JWM
Kennedy, WJ
机构
[1] Nat Hist Museum Maastricht, NL-6200 AW Maastricht, Netherlands
[2] Univ Oxford, Museum Hist Nat, Oxford OX1 3PW, England
关键词
ammonites; Maastrichtian; late cretaceous; the Netherlands; faunal incursions;
D O I
10.1017/S0016774600020898
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Two specimens of a pachydiscid ammonite, a fragmentary silicified phragmocone from the Kunrade Limestone facies at Kunrade (Schunck), and a partial external mould preserved in flint from the Nekum Member (both Maastricht Formation, Belemnitella junior Zone of authors) at the former Blom quarry (Berg en Terblijt), are identified as Pachydiscus (P) noetlingi Kennedy, 1999, a species previously known only from the Upper Maastrichtian of Baluchistan (Pakistan). This new record underscores the proposal of incursions of Tethyan biota into the type area of the Maastrichtian Stage, previously documented for other groups, including echinoderms and bivalves, as well.
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页码:303 / 307
页数:5
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