Ecdysozoa (/ ˌɛkdɪsoʊˈzoʊə /) is a group of protostome animals, [9] including Arthropoda (insects, chelicerates (including arachnids), crustaceans, and myriapods), Nematoda, and several smaller phyla.

The Ecdysozoa comprise one of the major groups within the animal kingdom, and it is also the largest since it includes both the arthropods (insects, spiders, and crustaceans) and the nematodes.

2024年11月23日 · Superphylum Ecdysozoa. The superphylum Ecdysozoa contains an incredibly large number of species. This is because it includes two of the most diverse animal groups: Phylum Nematoda (the roundworms) and Phylum Arthropoda (the arthropods).

Ecdysozoa is a major clade within the Bilateria that includes various animal phyla such as arthropods, nematodes, and tardigrades. The defining characteristic of Ecdysozoans is the presence of a cuticle that is molted periodically, a process known as ecdysis.

Both the nematodes and arthropods belong to the superphylum Ecdysozoa that is believed to be a clade consisting of all evolutionary descendants from one common ancestor. The name derives from the word ecdysis, which refers to the shedding, or molting, of the exoskeleton.

2021年2月28日 · What you’ll learn to do: Identify the common characteristics of superphylum Ecdysozoa. The superphylum Ecdysozoa contains an incredibly large number of species. This is because it contains two of the most diverse animal groups: phylum Nematoda (the roundworms) and Phylum Arthropoda (the arthropods).

2024年5月21日 · Ecdysozoa is a proposed super-grouping of eight animal phyla (out of approximately 37) -- Arthropoda, Onychophora, Tardigrada, Kinorhyncha, Priapulida, Loricifera, Nematoda and Nematomorpha.

2017年8月24日 · Twenty years after its proposal, the monophyly of molting protostomes—Ecdysozoa—is a well-corroborated hypothesis, but the interrelationships of its major subclades are more ambiguous than is commonly appreciated.

Ecdysozoans: animal superphylum corresponding to one of the two main branches of protostomes whose members shed their exoskeleton through a molting process (ecdysis). You might find these chapters and articles relevant to this topic. D.M. Takiya, A.P.M. dos Santos, in Encyclopedia of Evolutionary Biology, 2016.

2008年1月11日 · Ecdysozoa is a clade composed of eight phyla: the arthropods, tardigrades and onychophorans that share segmentation and appendages and the nematodes, nematomorphs, priapulids, kinorhynchs and loriciferans, which are worms with an anterior proboscis or introvert.