Cleoniceras besairei Ammonite
Geologic Time: Middle Cretaceous, Albian Stage
Size (25.4 mm = 1 inch): 180 mm diameter (each)
Fossil Site: Tulear, Madagascar
Fossil Code: MA031
Price: $195.00
 Description:
The fossil show in Tucson is the first place that many unusual and
novel fossil specimens come to light, and this spectacular ammonite
and a few others like it I was able to secure are a case in point.
A spectacular ammonite is a Cleoniceras besairei from Madagascar which
has been split in half and polished to show the wonderful detail within.
Some of the individual chambers are open and filled with rich black
colored Calcite crystals, with the septa (divisions) between each
chamber preserved as white Calcite, making for a superb display piece
with a striking geode-like appearance. The rich color is most likely
a result of infusion of the deposit with Manganese, affording the
unusual black and deep brown specimens you see offered here for the
first time in my 7 years of traveling to the show. This is a fine
example of an ammonite from the Albian (112 m.y.a) deposits of Madagascar,
one that is sure to be a fine addition to any ammonite collection. |
