Taxa described in 2023

Mobulavermis () (meaning "Mobula worm") is an extinct genus of Cambrian kerygmachelid lobopodian from the Pioche Shale, the Combined Metals Member of the Pioche Formation in Nevada; USA. The type species is M. adustus, known from the holotype and paratype.

Baiyuerius is a genus of spiders in the family Agelenidae, subfamily Coelotinae. The genus was described in 2023 and contains 24 species distributed across southern China and northern Vietnam.