Vachonisia

Vachonisia is a Devonian marrellomorph known from the Lower Devonian Hunsrück Slate.^[1] It grows in a similar fashion to the other Hunsruck marrellomorph, Mimetaster,^[2] and is closely related to the Silurian Xylokorys.^[3] It is known from 20 specimens; its whole body is covered by a shield-like carapace.^[3]

Vachonisia Temporal range: Lower Devonian PreꞒ Ꞓ O S D C P T J K Pg N
Ventral view of Vachonisia rogeri (reconstruction)
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Marrellomorpha
Order:	†Acercostraca
Family:	†Vachonisiidae
Genus:	†Vachonisia Lehmann, 1956
Species:	†V. rogeri
Binomial name
†Vachonisia rogeri (Lehmann, 1955)
Synonyms
Vachonia Lehmann, 1955 (preoccupied) Vachonia rogeri Lehmann, 1955