Rhinocarcinosoma
…Formation just east of Lock Haven, Pennsylvania. Rhinocarcinosoma is classified as part of the family Carcinosomatidae, a family within the superfamily Carcinosomatoidea, alongside the genera Carcinosoma, Eocarcinosoma, Eusarcana and possibly Holmipterus. The first cladogram below is adapted from a larger cladogram…