List of prehistoric malacostracans

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.

The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomina dubia), or were not formally published (nomina nuda), as well as junior synonyms of more established names, and genera that are no longer considered malacostracans.

[1] The majority of the genera are from the order Decapoda, for which a recent synopsis allows invalid names to be excluded.

[2]

Branchioplax ( Decapoda : Brachyura )
Aeger elegans ( Aegeridae )
Palaeonephrops browni ( Bearpaw Shale , Cretaceous )
Eryma mandelslohi ( Jurassic )
Thalassinoides , an ichnofossil produced by a thalassinidean ( Israel , Middle Jurassic )
Eryon arctiformis ( Solnhofen Limestone , Tithonian )
Claws of an Eocene hermit crab of the genus Dardanus
Harpactocarcinus ( Eocene )
Megokkos alaskensis ( Late Eocene )
Pulalius ( Oligocene )
†Aenigmacaris cornigerum SCHRAM & HORNER 1979 from the Mississippian Heath Formation of Bear Gulch, Montana
Nahecaris stuertzi at the Museum für Naturkunde, Berlin
Isopod inclusion in Baltic amber ( Eocene )
† Tyrannophontes acanthocercus from the Mississippian Heath Formation of Bear Gulch, Montana