Acrosalenia hemicidaroides
Phylum Echinodermata, Class Echinoidea (sea urchin)
Geological Time: Middle Jurassic, Upper Bajocian Stage
Size (25.4mm=1 inch): Plate size is 260 mm x 150 mm (10.5” x 6”) Individual fossils average 1.3 cm to 2 cm
Fossil Site: Neufchateau, France
Fossil Code: PFO194
Price: $175.00 - sold
 Description:
Presented is a rarely offered large plate of approximately 15 complete
to partial Acrosalenia hemicidaroides spiny echinoids. Notice the
spines aesthetically surrounding the specimens. The spines quickly
fell away after the death of the individual echinoid. The specimens
are fully 3D and contrast well against the surrounding matrix. This
genus is presumed to represent the earliest stem group members of
the Salenioida. |
