In the mobile mount.
In the mobile mount
In the mobile mount.
In the mobile mount.
In the mobile mount.
Heliolithus knoxii Steurbaut, 1998
Steurbaut, E. 1998. High–resolution holostratigraphy of Middle Paleocene to Early Eocene strata in Belgium and adjacent areas. Palaeontographica Abteilung A Palaeozoologie Stratigraphie. 247: 91-256.
Heliolithus knoxii
Steurbaut, 1988
Late Paleocene
Helfaut outcrop section, North France