The majority view at present is to order all eukaryotes into six supergroups: Excavata, Chromalveolata, Rhizaria, Archaeplastida, Amoebozoa, and Opisthokonta. The goal of this classification scheme is to create clusters of species that all are derived from a common ancestor.

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.

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.

Nov 23, 2024 · 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 is predicted to include at least ten distinct groups: jakobids, Malawimonas, Trimastix, Carpediemonas, retortamonads, diplomonads, Heterolobosea, oxymonads, parabasalids and Euglenozoa.

Aug 22, 2023 · Excavata is a major supergroup of unicellular organisms, largely comprising protists, that demonstrate various cellular morphologies and behaviours. One defining characteristic of the Excavata is the presence of an 'excavated' groove on …

Mar 23, 2024 · have one or two flagella that emerge from a pocket at one end of the cell, Some species can be both autotrophic and heterotrophic. Start studying Protist Phylogeny (Excavata). Learn vocabulary, terms, and more with flashcards, games, and other study tools.

Dec 15, 2021 · The majority view at present is to order all eukaryotes into six supergroups: Excavata, Chromalveolata, Rhizaria, Archaeplastida, Amoebozoa, and Opisthokonta. The goal of this classification scheme is to create clusters of species that all …

This diagram shows a proposed classification of the domain Eukara. Currently, the domain Eukarya is divided into six supergroups. Within each supergroup are multiple kingdoms. Dotted lines indicate suggested evolutionary relationships that remain under debate.

With more than 1,500 described species, the Euglenida class is numerically the most important among the Excavata. They are single-celled flagellates with one or two flagella, rarely more. They most often inhabit freshwater, rich in organic matter …