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Crustaceans have a rich and extensive fossil record, most of the major groups of crustaceans appear in the fossil record before the end of the Cambrian, namely the Branchiopoda, Maxillopoda (including barnacles and tongue worms) and Malacostraca; there is some debate as to whether or not Cambrian animals assigned to Ostracoda are truly ...
Illustration of a P. politus fossil viewed from the side. A crustacean of moderate size, Harbort (1905) noted that larger specimens of Protastacus are around 10 cm (3.9 in) long. [2] The carapace is smooth and subcylindrical in shape, with a deep cervical groove stretching across its surface. This groove first bends down the carapace sides ...
They are small crustaceans, typically around 1 mm (0.04 in) in size, but varying from 0.2 to 30 mm (0.008 to 1 in) in the case of the marine Gigantocypris. The largest known freshwater species is Megalocypris princeps , which reach 8 mm in length.
Fossilized remains of various marine animals are preserved in the Speeton Clay Formation, with those of belemnites being the most abundant. [39] Ammonites, crustaceans, and the teeth of sharks and rays (including Cretorectolobus, Spathobatis, Dasyatis and Synechodus) are also commonly recorded from these deposits. [8] [40] [41]
Prehistoric crustaceans Cambrian · Ordovician · Silurian · Devonian · Carboniferous · Permian · Triassic · Jurassic · Cretaceous · Paleocene · Eocene · Oligocene · Miocene See also: Category:Extinct crustaceans
Branchioplax (Decapoda: Brachyura). This list of prehistoric malacostracans illustrates the genera from the fossil record that have ever been considered to be malacostracans, a class of crustacean arthropod, excluding purely vernacular terms.
Anthracocaris is an extinct genus of crustaceans which lived during the Early Carboniferous period in Scotland.It is the only genus in the family Anthracocarididae.The genus contains a single species, A. scotica, which was first named as a species of Palaeocaris in 1882, but later recognized to belong in a separate genus.
The Glypheoidea (containing the glypheoid lobsters), is a group of lobster-like decapod crustaceans which forms an important part of fossil faunas, such as the Solnhofen limestone. These fossils included taxa such as Glyphea (from which the group takes its name), and Mecochirus, mostly with elongated (often semichelate) chelipeds.