Camanchia is a genusofsynziphosurine,[1]aparaphyletic 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 periodinIowa, in the United States.[7][2] Alongside Venustulus, Camanchia is one of the only Silurian synziphosurine with fossil showing evidence of appendages.[1]
| Camanchia
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| Reconstruction of Camanchia grovensis | |
Scientific classification 
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| Domain: | Eukaryota |
| 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 prosomaofCamanchia 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]
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