Inoceramids and biozonation across the Turonian – Coniacian boundary (Upper Cretaceous) at El Rosario, Coahuila, northeastern Mexico
Inoceramids and biozonation across the Turonian – Coniacian boundary (Upper Cretaceous) at El Rosario, Coahuila, northeastern Mexico
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墨西哥东北部科阿韦拉州埃尔罗萨里奥的 Inoceramids 和跨越土伦阶 - 科尼亚阶边界（上白垩纪）的生物分区
DOI：
10.1127/0078-0421/2014/0043
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发表时间：
2014
影响因子：
2.2
通讯作者：
W. Stinnesbeck
中科院分区：
文献类型：
--
作者：
C. Ifrim;F. Wiese;W. Stinnesbeck
墨西哥东北部科阿韦拉北部的罗萨里奥段包含了跨越都罗尼亚-科尼亚西亚边界的沉积物的完整记录。在这里，我们描述了双壳类的接种胺及其生物区划。在El Rosario中鉴定出长链拟线虫、草木霉属、不定形拟线虫、尖吻拟线虫、斜纹夜蛾、华氏拟线虫、华氏拟线虫、汉诺氏拟线虫、变形直立线虫和不定形线虫。与美国西部内陆和欧洲的部分地区相比，最上层的都罗尼亚Mytiloids scupini和C.waltersdorfensis W带和下部的Coniacian C.Crassus instants带具有很好的代表性，并且比美国西部内陆和欧洲的部分地区更大。虽然迄今为止极少有关于土伦伊恩-柯尼亚斯界线的数据，但也有锥形锥体底部的指数。菊石很罕见，大多是地方性的，跨越图罗尼亚-哥尼亚山脉边界提供的分辨率比诺维拉姆低得多。我们认为，在都罗尼亚-哥尼亚山脉边界观察到的各种顶峰是由当地或区域驱动的，而不是由全球原因驱动的。罗萨里奥段提供了一个扩大的沉积物和完整的接种层，记录了跨越都罗尼亚-科尼亚山脉边界的记录。
The Rosario section in northern Coahuila, northeastern Mexico, contains a complete record of sediment across the Turonian–Coniacian boundary. Here we describe the inoceramids and the biozonation based on these bivalves. Inoceramus longealatus, Mytiloides herbichi, M. incertus, M. scupini, Didymotis costatus, Cremnoceramus waltersdorfensis waltersdorfensis, C. waltersdorfensis hannovrensis, C. deformis erectus, and C. crassus inconstans, were identified at El Rosario. The uppermost Turonian Mytiloides scupini and C. waltersdorfensis w. zones and the lower Coniacian C. crassus inconstans zones are well represented and are much more expanded than in sections of the US Western Interior and Europe. The index for the base of the Coniacian, C. deformis erectus, is also present, although few data exist to date from the critical Turon ian–Coniacian boundary level. Ammonites are rare, mostly endemic and provide a much lower resolution across the Turonian–Coniacian boundary than inoceramids. We suggest that various acmes observed across the Turonian–Coniacian boundary are driven by local or regional rather than by global causes. The Rosario section provides an expanded sediment and complete inoceramid record across the Turonian–Coniacian boundary.
墨西哥东北部的上白垩纪（塞诺曼阶-土伦阶和土伦阶-科尼亚阶）开放海洋石灰岩矿床
DOI：
10.1127/0077-7749/2007/0245-0071
发表时间：
2008
影响因子：
0.8
作者：
Stinnesbeck
通讯作者：
Stinnesbeck