Search results
Results From The WOW.Com Content Network
Ecdysozoa (/ ˌ ɛ k d ɪ s oʊ ˈ z oʊ ə /) is a group of protostome animals, [9] including Arthropoda (insects, chelicerata (including arachnids), crustaceans, and myriapods), Nematoda, and several smaller phyla.
Uncus dzaugisi is an extinct species of animal which lived approximately 560 to 550 Ma ago during the late Ediacaran of Southern Australia.Its morphology suggests that it was a member of Ecdysozoa, which would make it the oldest member of the clade known so far, [1] as well as one of the oldest known bilaterians.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
Saccorhytus (from Latin saccus "bag" and Ancient Greek ῥύτις rhytis "wrinkle") is an extinct genus of animal possibly belonging to the superphylum Ecdysozoa, [3] and it is represented by a single species, Saccorhytus coronarius (from Latin attributive coronarius "[of a] crown").
Protostomia (/ ˌ p r oʊ t ə ˈ s t oʊ m i. ə /) is the clade of animals once thought to be characterized by the formation of the organism's mouth before its anus during embryonic development.
Adult Rhopalomyia solidaginis fly, emerging from pupal case Process of ecdysis of a cicada.. Ecdysis is the moulting of the cuticle in many invertebrates of the clade Ecdysozoa.
This implies that tardigrades evolved from an ancestral ecdysozoan with a longer body and more segments. [68] Tardigrade body plan compared to arthropods, onychophora, and annelids. Tardigrades have lost the whole middle section of the ecdysozoan body plan, and its Hox genes. [68] [67]
Cycloneuralia is a proposed clade of ecdysozoan animals including the Scalidophora (Kinorhynchans, Loriciferans, Priapulids), the Nematoida (nematodes, Nematomorphs), and the extinct Palaeoscolecida. [1] [2] It may be paraphyletic, or may be a sister group to Panarthropoda. Or perhaps Panarthropoda is paraphyletic with respect to Cycloneuralia. [3]