Hans Hillewaert:
Caecum bucerium
Hans Hillewaert:
Caecum bucerium
Hans Hillewaert:
Caecum bucerium
Hans Hillewaert:
Caecum cf. subornatum
Hans Hillewaert:
Caecum dalli
Hans Hillewaert:
Caecum derjugini
Hans Hillewaert:
Caecum floridanum
Hans Hillewaert:
Caecum glabrum
Hans Hillewaert:
Caecum glabrum
Hans Hillewaert:
Caecum glabrum
Hans Hillewaert:
Caecum glabrum
Hans Hillewaert:
Caecum gurgulio
Hans Hillewaert:
Caecum pulchellum
Hans Hillewaert:
Caecum regulare
Hans Hillewaert:
Caecum sepimentum
Hans Hillewaert:
Caecum sp. 1
Hans Hillewaert:
Caecum sp. nov.
Hans Hillewaert:
Caecum trachea
Hans Hillewaert:
Caecum trachea
Hans Hillewaert:
Meioceras nitidum