Types and the corresponding rules in the International Code of Zoological Nomenclature are crucial for taxonomy and are meant to provide nomenclatural stability. In the case of neotypification, especially diligent taxonomic work is required to retain continuity. In the present communication, we first outline the main principles of typification and neotypification. We then discuss a critical case, using a current example from the marine planktonic tintinnid genus Tintinnopsis Stein, 1867 (Alveolata, Ciliophora). This diverse and ubiquitous genus is nonmonophyletic, but its revision and the erection of new related genera is currently prevented by the uncertain affiliation of its type species.

中文翻译：

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类型物种的重要性及其正确识别：tintinnid ciliates（Alveolata、Ciliophora、Spirotricha）的一个关键例子

《国际动物命名法典》中的类型和相应规则对分类至关重要，旨在提供命名稳定性。在新类型化的情况下，需要特别勤奋的分类工作来保持连续性。在本次交流中，我们首先概述了典型化和新典型化的主要原则。然后，我们使用来自海洋浮游 tintinnid 属Tintinnopsis Stein，1867 年（Alveolata，Ciliophora）的当前示例讨论一个关键案例。这种多样化和普遍存在的属是非单系的，但目前由于其模式种的不确定从属关系而阻止了它的修订和新相关属的建立。