Gastropoda - Architectonicoidea - Mathildidae

Full reference: O. Haas. 1953. Mesozoic invertebrate faunas of Peru. Bulletin of the American Museum of Natural History 101:1-328

Belongs to Promathilda (Teretrina) according to W. Yu et al. 1974

Sister taxa: Promathilda (Teretrina) aculeata, Promathilda (Teretrina) eucycloides, Promathilda (Teretrina) intermedia, Promathilda (Teretrina) obtusa, Promathilda (Teretrina) terebraeformis, Promathilda (Teretrina) tilarniocensis

Type specimen: Its type locality is Cerro de Pasco area, Ninacaca, loc86, which is in a Rhaetian marine limestone in Peru.

Ecology: epifaunal carnivore