First Mesozoic amphipod crustacean from the Lower Cretaceous of SE England

Edmund A Jarzembowski (1, 2) , Cédric Chény (3) , Yan Fang (1) , Bo Wang (1)

1 NIGPAS-CAS - Nanjing Institute of Geology and Palaeontology
2 NHM - The Natural History Museum [London]
3 GR - Géosciences Rennes

Long predicted but not found, a Mesozoic amphipod is finally reported from the lower Weald Clay Formation (late Hauterivian) of the County of Surrey in Southeast England, UK. Occurring in non-marine Wealden deposits, and sideswimmer-like, this lilliputian is referred to a new senticaudatan collective group and named Gammaroidorum vonki gen. et sp. nov. Future search should focus on finer-grained insect beds to elucidate the history of small, little-known, but significant crustaceans.

Mots clés: amphipod: earliest: gammaroid: Wealden: new taxa: palaeoenvironment

Domaines: Paléontologie; Stratigraphie

Edmund A Jarzembowski, Cédric Chény, Yan Fang, Bo Wang. First Mesozoic amphipod crustacean from the Lower Cretaceous of SE England. Cretaceous Research, 2020, 112, pp.104429. ⟨10.1016/j.cretres.2020.104429⟩. ⟨insu-02495739⟩