Carcinosomatidae
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Carcinosomatidae is a family of eurypterids, an extinct group of aquatic arthropods. They were members of the superfamily Carcinosomatoidea, also named after Carcinosoma. Fossils of carcinosomatids ha
Carapaces of Rhinocarcinosoma, as figured by John Mason Clarke and Rudolf Ruedemann in 1912
Mixopterids were the closest relatives of the carcinosomatids
Model of a Eusarcana on a Silurian seafloor
Rhinocarcinosoma
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Rhinocarcinosoma is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of Rhinocarcinosoma have been discovered in deposits ranging of Late Silurian age in the United States, Canad
Carcinosomatidae
…helped contribute to the common name of eurypterids becoming 'sea scorpions'. The family contains five, possibly six, genera: Carcinosoma, Eusarcana, Rhinocarcinosoma, Cruinnopterus, Tigrisopterus, and possibly the problematic genus Holmipterus. It is unlikely that the carcinosomatids were strong and active swimmers…
Reconstruction of Eusarcana, a close relative of Rhinocarcinosoma
The Eurypterida of New York figure 111 115