Jangziceras

Jangziceras is a genus of fossil nautiloid cephalopods from the Middle Silurian of southern China belonging to the Orthocerida incertae sedis, its familial association undetermined. The type is "Jangziceras sichuanense" Lai Chai-Geen . Its description falls within the characters of the Orthocerida.
"Jangziceras sichuanense" was found in the Middle Silurian (Telychian) Lojoping Formation in Szechuan and Kweichow Provinces associated with orthoderids such as "Sichuanaceras" and "Neosichuanoceras" and oncocerids such as "Oocerina" and "Guangyuanoceras" among other nautiloid genera in reefal environments