The spinicaudatan Tylestheria and biostratigraphic significance for the age of dinosaur eggs in the Upper Cretaceous Majiacun Formation, Xixia Basin, Henan Province, China
The spinicaudatan Tylestheria and biostratigraphic significance for the age of dinosaur eggs in the Upper Cretaceous Majiacun Formation, Xixia Basin, Henan Province, China
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DOI：
10.1016/j.cretres.2008.09.002
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发表时间：
2009-04-01
影响因子：
2.1
通讯作者：
Batten, David J.
中科院分区：
文献类型：
--
作者：
Li, Gang;Chen, Peiji;Batten, David J.
棘尾类Tylestheria是首次在黑龙江、吉林松辽盆地嫩江组上泥盆统一段的蚌类Halysestheria yui带中发现的。该属的代表以前只在这个盆地被发现。本文描述了产于河南西峡盆地马家村组中的一个新种，命名为西峡泰勒虫Tylestheriaxixiaensissp. nov.。这一地层的年代至今仍不确定，早白垩世和晚白垩世都有确定。其中T xixiaensis的发现表明，含化石地层可与嫩江组一段对比，因此也属于土仑期。(C)2008爱思唯尔有限公司保留所有权利。
The spinicaudatan Tylestheria was first described from the clam shrimp ("conchostracan") Halysestheria yui Zone in the upper Turonian First Member of the Nenjiang Formation, which crops out in the Songliao Basin in Heilongjiang and Jilin provinces, north-east China. Representatives of the genus have been found previously only in this basin. The species described herein as Tylestheria xixiaensis sp. nov. was recovered from the dinosaur-egg-bearing Majiacun Formation in the Xixia Basin, south-west Henan Province. The age of this formation has been uncertain hitherto, with both Early and Late Cretaceous determinations having been made. The recovery of T xixiaensis from it suggests that the fossil bearing strata can be correlated with the First Member of the Nenjiang Formation and are, therefore, also of Turonian age. (C) 2008 Elsevier Ltd. All rights reserved.