Abundance: 0.25 to 4.65% (median 1.65%)

Latitudinal range: 35.8° to 45.9°

Habitats: (4) only

Found in 4 samples

China: Dazhushan (Late Pleistocene), Songhua River (Late Pleistocene), Yujiagou (Layer 3B) (Late Pleistocene), Xiaonanshan (Early Pleistocene)

See also Spirocerus sp., Spirocerus wongi