WCyclida is an order of fossil arthropods that lived from the Carboniferous to the Cretaceous. Their classification is uncertain, but they are generally treated as a group of maxillopod crustaceans.
WCallichimaera perplexa is a species of small crabs known from the Cretaceous Churuvita Group of Colombia and the Frontier Formation of the United States. Because it possesses a strange combination of anatomical features, it is said to be the "platypus of crabs". The presence of certain features in this species, such as its large claws and swimming limbs, confirm that those features were present in the crab lineage up to 95 million years ago. It evolved during the Cretaceous Crab Revolution.
WCarpopenaeus is an extinct genus of prawn, which existed during the Upper Jurassic and Cretaceous periods. It contains three species.
WEryonidae is a family of fossil decapod crustaceans which lived from the Upper Triassic to the Lower Cretaceous. It contains four genera: An aggregation of three unidentified eryonids was reported in 2012 inside a Late Jurassic ammonoid of the species Harpoceras falciferum; they represent the earliest evidence of gregarious behaviour in decapods.Cycleryon Glaessner, 1965 Eryon A. G. Desmarest, 1817 Knebelia Van Straelen, 1922 Rosenfeldia Garassino, Teruzzi & Dalla Vecchia, 1996
WEumorphocorystes is a genus of crab belonging to the Raninidae subfamily Notopodinae. Fossils of the genus have been found in the Late Cretaceous (Maastrichtian) Maastricht Formation of the Netherlands. Rathbun referred specimens from the Oligocene Stepovak Formation of Alaska to this genus.
WGlyphea is a genus of fossil glypheoid crustaceans that lived from the Jurassic to the Eocene. It includes the following species:
WHakelocaris vavassorii is an extinct species of prawn belonging to the family Penaeidae. It was named in 1994 by Alessandro Garassino, and is the only species in the genus Hakelocaris.
WThe Aeglidae are a family of freshwater crustaceans currently restricted to South America. They are the only anomurans to be found in fresh water except for a single hermit crab species, Clibanarius fonticola, on Espiritu Santo, Vanuatu. They live between 20° S and 50° S, at altitudes between 320 and 3,500 m (1,050–11,480 ft).
WHomarus hakelensis is a species of fossil lobster belonging to the family Nephropidae.
WHoploparia is a genus of fossil lobster belonging to the family Nephropidae. The type species of this genus is Hoploparia longimana.
WHoploparia longimana is a species of fossil lobsters belonging to the family Nephropidae. It is the type species of the genus Hoploparia.
WJeholops is an extinct genus of notostracan which existed in the Yixian Formation, inner Mongolia, China during the early Cretaceous period. It was described by Thomas A. Hegna and Ren Dong in 2010, and the only species is Jeholops hongi.
WCyclida is an order of fossil arthropods that lived from the Carboniferous to the Cretaceous. Their classification is uncertain, but they are generally treated as a group of maxillopod crustaceans.
WNephrops is a genus of lobsters comprising a single extant species, Nephrops norvegicus, and several fossil species. It was erected by William Elford Leach in 1814, to accommodate N. norvegicus alone, which had previously been placed in genera such as Cancer, Astacus or Homarus. Nephrops means "kidney eye" and refers to the shape of the animal's compound eye.
WNephrops is a genus of lobsters comprising a single extant species, Nephrops norvegicus, and several fossil species. It was erected by William Elford Leach in 1814, to accommodate N. norvegicus alone, which had previously been placed in genera such as Cancer, Astacus or Homarus. Nephrops means "kidney eye" and refers to the shape of the animal's compound eye.
WPalaeobenthesicymus is an extinct genus of prawns which existed in what is now Lebanon in the Late Santonian. It was described by Denis Audo and Sylvain Charbonnier in 2013, as a new genus for the species Penaeus libanensis, first described by P. Brocchi in 1875.
WThe Aeglidae are a family of freshwater crustaceans currently restricted to South America. They are the only anomurans to be found in fresh water except for a single hermit crab species, Clibanarius fonticola, on Espiritu Santo, Vanuatu. They live between 20° S and 50° S, at altitudes between 320 and 3,500 m (1,050–11,480 ft).