Abundance: 0.02 to 9.23% (median 3.60%)

Latitudinal range: 23.4° to 45.3°

Habitats: (11) only

Found in 11 samples

China: Wuyun Cave (Middle Pleistocene)

United States: Zesch Cave (Late Pleistocene), Fort Center Mound A (Holocene), McLelland (Holocene), Watson Brake (6.4 mm fraction) (Holocene), Harris Creek (Holocene), Kincaid Shelter (Late Pleistocene), Bridge Ranch (Middle Miocene), Buckner Ranch (Middle Miocene), Farish Ranch (Middle Miocene), Antelope Creek (SDSM V582) (Late Eocene)

See also Alligator mississippiensis, Alligator prenasalis, Alligator sinensis