Excavata is an extensive and diverse but paraphyletic group of unicellular Eukaryota. [1][2] The group was first suggested by Simpson and Patterson in 1999 [3][4] and the name latinized and assigned a rank by Thomas Cavalier-Smith in 2002.

古虫界（excavate或Excavata）是单细胞真核生物的一个大的界。 古虫界包含了许多自由生存或共生的原生生物，以及一些重要的 人体寄生虫。 命名为“古虫”，是因为在真核生物的系统发生树处于底部位置，与细菌、古菌等外群关系较近，线粒体可能缺失或功能原始。 许多古虫界的物种缺乏典型的线粒体，被称作“无线粒体 原生生物 ”（amitochondriate），虽然大多数可能包含了功能上类似于线粒体、形态有很大变化的细胞器。 其它的古虫界的生物有线粒体， 线粒体嵴 呈管状、盘 …

这次给大家介绍真核生物中最鲜为人知，也是最为神秘的类群——古虫（Excavata）。 古虫这一名词最早由著名的分类学家，系统发育学家Thomas Cavalier-Smith（一个熟悉的名字）在2002年所提出，词源来自于拉丁语‘excavātus’，意为“挖掘”，表示其身体一侧具有一个取食用的口沟（取食槽，feeding groove）。 古虫类在后续诸多研究中，被作为单系群进行处理，且通常放置在双鞭毛生物的基干位置。 但是，在今年的一项研究中，Caesar Al Jewari与Sandra L. Baldauf对古虫 …

Many of the protist species classified into the supergroup Excavata are asymmetrical, single-celled organisms with a feeding groove “excavated” from one side. This supergroup includes heterotrophic predators, photosynthetic species, and parasites. Its subgroups are the diplomonads, parabasalids, and euglenozoans.

2024年11月23日 · Excavata are a supergroup of protists that are defined by an asymmetrical appearance with a feeding groove that is “excavated” from one side; it includes various types of organisms which are parasitic, photosynthetic and heterotrophic predators. Excavata includes the protists: Diplomonads, Parabasalids and Euglenozoans.

Many of the protist species classified into the supergroup Excavata are asymmetrical, single-celled organisms with a feeding groove “excavated” from one side. This supergroup includes heterotrophic predators, photosynthetic species, and parasites. Its subgroups are the diplomonads, parabasalids, and euglenozoans.

The excavates are a major assemblage of protists, often known as Excavata. The phylogenetic category Excavata contains a variety of free-living and symbiotic forms, and includes some important parasites of humans.

EXCAVATE翻译：发掘;挖出, （尤指用机器）开凿，挖（洞），挖空。 了解更多。

必应词典为您提供excavate的释义，美 [ˈekskəˌveɪt]，英 [ˈekskəveɪt]，v. 挖掘；发掘； 网络释义： 挖出；开凿；采掘；

To allow renovations to be completed, scientists pioneered a new technique to excavate the bones. 为了使其复原, 科学家倡导用新技术挖掘骨头. Fill and level up of the third week of driveway, but excavate. 第三星期马路填平了, 可又挖开了. The researchers plan to excavate the second pliosaur when they return to Spitsbergen this summer. 研究者计划在这个夏季返回斯匹次卑尔根群岛挖掘第二具化石.