sp. aff. Albrechtiaustriae
Time: Lower Cretaceous (112 MA)
by 17.8 inches (about 80 pounds)
Coastal Sahara Desert in Morocco
is a truly massive marine fossil from the time of dinosaurs. Coming
from Aptian-age limestone in Morocco, it dates to about 112 million
years old. While the species has yet to be taxonomically described,
as is the case for many Moroccan fossils, Procheloniceras is found
in many localities worldwide (e.g., Texas, Hungary and France).
Consequently, the genus is sometimes used as an index to mark the
Aptian-Albian stage transition of the Lower Cretaceous.
of this enormous size (80 pounds) are difficult to come by, and
authentic specimens of such size are even harder to find. Procheloniceras
is a favorite fossil within the local cottage industry to carve
rather than dig and clean; a white chalky patina, lack of contrast
between the shell cast and matrix and just a bit too much perfection
betray such contrived specimens.
ammonite pictures to enlarge