 The specific epithet "longicervia" is derived from the Latin "longus" ("long") and "cervicarius" ("with a neck"), in reference to the characteristic constriction in the pitcher-like structures of this species.All known fossil material of "A. longicervia" originates from the Jianshangou Formation in Beipiao, western Liaoning, China.These Early Cretaceous beds constitute the lower part of the Yixian Formation, which is dated at 124.6 million years old.