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Insects are thought to have evolved from a group of crustaceans. [2] The first insects were landbound, but about 400 million years ago in the Devonian period one lineage of insects evolved flight, the first animals to do so. [ 1 ]
Arthropleurideans were ancient myriapods that are now extinct, known from the late Silurian to the Permian. The most famous members are from the genus Arthropleura , which was a giant, probably herbivorous , animal that could be up to 2.63 metres (8 ft 8 in) long, [ 34 ] but the group also includes species less than 1 cm (0.39 in).
Pneumodesmus newmani is a species of myriapod.It is originally considered that it lived during the late Wenlock epoch of the Silurian period around 1] [2] [3] However, a 2017 study dates its occurrence based on zircon data analysis as the Early Devonian (). [4]
Rhyniognatha, which was once thought to be the oldest insect fossil, is also found in the Rhynie Chert. [52] Three species, one scutigeromorph ( Latzelia ) and two scolopendromorphs ( Mazoscolopendra and the poorly known Palenarthrus ), have been described from the Mazon Creek fossil beds , which are Carboniferous , 309–307 mya. [ 53 ]
Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of arthropods that are a part of the subphylum Crustacea (/ k r ə ˈ s t eɪ ʃ ə /), a large, diverse group of mainly aquatic arthropods including decapods (shrimps, prawns, crabs, lobsters and crayfish), seed shrimp ...
Members of the Branchiopoda are unified by the presence of gills on many of the animals' appendages, including some of the mouthparts.This is also responsible for the name of the group [1] (from the Ancient Greek: βράγχια, gills, akin to βρόγχος, windpipe; Greek: πούς, foot). [2]
Entomology (from Ancient Greek ἔντομον (entomon) 'insect' and -λογία 'study') [1] is the branch of zoology that focuses on insects. Those who study entomology are known as entomologists. Those who study entomology are known as entomologists.
Among extant insect taxa they are some of the most evolutionarily primitive; they appeared in the Middle Devonian period at about the same time as the arachnids. Specimens that closely resemble extant species have been found as both body and trace fossils (the latter including body imprints and trackways) in strata from the remainder of the ...