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The subphylum Hexapoda (from Greek for 'six legs') or hexapods comprises the largest clade of arthropods and includes most of the extant arthropod species. It includes the crown group class Insecta (true insects), as well as the much smaller clade Entognatha, which includes three classes of wingless arthropods that were once considered insects: Collembola (springtails), Protura (coneheads) and ...
Springtails (class Collembola) form the largest of the three lineages of modern hexapods that are no longer considered insects.Although the three lineages are sometimes grouped together in a class called Entognatha because they have internal mouthparts, they do not appear to be any more closely related to one another than they are to all insects, which have external mouthparts.
Hexapoda: Insecta Entognatha: insects springtails, etc. Saturnia pavonia (Insecta, Lepidoptera) Interaction with humans Insects and scorpions on sale in a ...
Toggle Subphylum Hexapoda subsection. 1.1 Class Insecta (Insects) 1.1.1 Subclass Monocondylia or Monochlamydia. 1.1.2 Subclass Dicondylia. 1.2 Class Collembola.
The Entognatha are a class of wingless and ametabolous arthropods, which, together with the insects, makes up the subphylum Hexapoda. [1] [2] Their mouthparts are entognathous, meaning that they are retracted within the head, unlike the insects. [1] Entognatha are apterous, meaning that they lack wings.
Animals having coeloms are called coelomates, and those without are called acoelomates. There are also subtypes of coelom: [citation needed] schizocoelom: develops from split in mesoderm found in annelids, arthropods and molluscs; haemocoelom: true coelom reduced and cavity filled with blood found from Arthropoda to Mollusca
Hexapodidae is a family of crabs, the only family in the superfamily Hexapodoidea. [1] It has traditionally been treated as a subfamily of the family Goneplacidae, [2] and was originally described as a subfamily of Pinnotheridae.
Ecdysozoa (/ ˌ ɛ k d ɪ s oʊ ˈ z oʊ ə /) is a group of protostome animals, [8] including Arthropoda (insects, chelicerata (including arachnids), crustaceans, and myriapods), Nematoda, and several smaller phyla.