Camanchia

Camanchia is a genus of synziphosurine,^[1] a paraphyletic group of fossil chelicerate arthropods.^[2][3] Camanchia was regarded as part of the clade Prosomapoda.^[4][5][6][3] Fossils of the single and type species, C. grovensis, have been discovered in deposits of the Silurian period in Iowa, in the United States.^[7][2] Alongside Venustulus, Camanchia is one of the only Silurian synziphosurine with fossil showing evidence of appendages.^[1]

Camanchia Temporal range: Silurian PreꞒ Ꞓ O S D C P T J K Pg N
Reconstruction of Camanchia grovensis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Clade:	Euchelicerata
Clade:	Prosomapoda
Genus:	†Camanchia Moore et al., 2011
Type species
†Camanchia grovensis Moore et al., 2011

The prosoma of Camanchia covered by a smoothly curved subtriangular carapace with broad doublure (ventral thickening run through the margin of carapace).^[1] Detail of the 6 prosomal appendage pairs (chelicerae+5 leg pairs) obscure, at least the first leg pair (appendage II) have spur-like terminations.^[1] Opisthosoma is externally 10-segmented with tergites possess blunt pleurae (lateral extension).^[1] The last 3 opisthosomal segments forming a narrow postabdomen with short pleurae.^[1] Telson is yet to be discovered.^[1] The carapace margin and pleurae possess tubercles.^[1]