| Brian Fisher edited the species Zasphinctus steinheili | History | over 7 years ago Link Activities | |
| Brian Fisher edited the species Zasphinctus steinheili | History | over 7 years ago Link Activities | |
| Brendon E. Boudinot added the species Zasphinctus steinheili to the genus Zasphinctus | History | over 8 years ago Link Activities |