Taoqupognathus为潘德尔刺类的一多分子器官属。其特征明显：单维，片状，具有不同发育程度的后缘隆起。该属仅在澳大利亚东部和中国上奥陶统分布，已知有4种，而且具有较精确的区域对比价值。形态特征的支序分析显示：在晚奥陶世中期（Eastonian),T.philipi-T.blandus-T.tumidus谱系代表了该属的主要演化趋向。Taoqupognathus属的分布表明，澳大利亚东部和中国在当时有着密切的生物地理联系。该属可能在Eastonian早期起源于新南威尔世中部地区，在中－晚Eastonian期时达到发展高潮，并已扩展到中国各板块。继而可能在Eastonian末期和Bolindian早期全部绝灭。

Taoqupognathus is a multimembrate panderodontid conodont, consisting of distinctive, blade-like, coniform elements with various degrees of posterior bulging. The genus is restricted in distribution to the Upper Ordovician of eastern Australia and China, where the four known species are useful for precise regional correlation. A cladistic analysis of morphological characters indicates that the mian evolutionary trend of Taoqupognathus appears to follow the lineage: T.philipi-T.blandus, and T.tumidus during the Eastonian (middle Late Ordovician), with T.philipi as the most primitive form. The distribution of Taoqupognathus suggests a close biogeographical link between eastern Australia and China with the genus apparently originating in central New South Wales in the early Eastonian. It then migrated to Chinese crustal blocks during the summit of its development in the mid-late Eastonian, and probably became extinct in the latest Eastonian or early Bolindian.

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