A large slab of sandstone containing the negative impressions of the lower Cretaceous Jellyfish Kirklandia texana caster. The slab consist of one complete and a partial along the edge of a very fine grained beach sandstone.
Cretaceous jellyfish are extremely rare in the fossil record.
There are only three known localities in the north Texas area that produce these fossils. Two of them no longer exist. This particular slab was collected along the shore of Lake Texoma where numerous specimens have been found. However this locality is producing fewer and fewer specimens. A monograph is available for review that describes and names the specimens after the original discoverer a Mr. Forrest Kirkland.