Upper Tithonian Vallupinae (Radiolaria) from the Taman Formation, east-central Mexico
Upper Tithonian Vallupinae (Radiolaria) from the Taman Formation, east-central Mexico
复制标题
墨西哥中东部塔曼组的上提通阶 Vallupinae（放射虫）
DOI：
10.2307/1485463
复制
发表时间：
1989
影响因子：
1.5
通讯作者：
E. Pessagno
中科院分区：
文献类型：
--
作者：
Qun Yang;E. Pessagno
瓦卢皮纳亚科（Vallupinae Pessagno and MacLeod）在提通阶晚期达到其发展的顶峰。在墨西哥中东部的塔曼组提通阶上部描述了两个新属（新瓦卢普斯属Neovallupus和超瓦卢普斯属Supervallupus）以及七个新种；新种包括对生双瓦卢普斯虫（Bivallupus oppositus）、原始双瓦卢普斯虫（B. primigenus）、杜米特里凯新瓦卢普斯虫（Neovallupus dumitricai）、适度新瓦卢普斯虫（N. modestus）、卓越原瓦卢普斯虫（Protovallupus excellens）、黑克利超瓦卢普斯虫（Supervallupus haeckeli）和宽松瓦卢普斯虫（Vallupus laxus）。此外，对瓦卢皮纳亚科的定义进行了修订。许多属于瓦卢皮纳亚科的分类单元分布范围窄、特征明显且具有全球性——在北方区和特提斯区地层中均有出现。瓦卢皮尼类群已被证明在为北美洲提通阶上部建立有意义的放射虫分带方面是有用的。
The pantanelliid subfamily Vallupinae Pessagno and MacLeod reached its acme of development during the late Tithonian. Two new genera (Neovallupus and Supervallupus) and seven new species are described from the upper Tithonian portion of the Taman Formation, east-central Mexico; new species are Bivallupus oppositus, B. primigenus, Neovallupus dumitricai, N. modestus, Protovallupus excellens, Supervallupus haeckeli, and Vallupus laxus. In addition, the definition of the subfamily Vallupinae is emended. Many taxa belonging to the Vallupinae are short-ranging, distinctive, and cosmopolitan-occurring in both Boreal and Tethyan strata. Vallupinid taxa have proven to be useful in developing a meaningful radiolarian zonation for the upper Tithonian of North America.