The limestone contains marine fossils including crinoids, brachiopods, gastropods, horn corals, and bryozoans. The formation contains fossils of invertebrates including brachiopods, bryozoans, crinoids, gastropods, and pelecypods. Texas was home to brachiopods, cephalopods, crinoids, gastropods, ostracods, trilobites during the Mississippian. The locality is also rich in crinoids, gastropods, bivalves, brachiopods and bryozoans. The strata contain fossil corals, crinoids, sea urchins and ammonites. Other marine life included cephalopods, gastropods, crinoids, and trilobites. Other taxa to suffer declines in diversity include brachiopods, bryozoans, crinoids, and ostracodes. This sea was home to creatures including brachiopods, conodonts, crinoids, fish, and trilobites. Brachiopods, bryozoa, molluscs, hederelloids, tentaculitoids, crinoids and trilobites were abundant and diverse. It shows fossil evidence of trilobites, coral and primitive crinoids. Examples include ammonites, giant clams, crinoids, rudists, and squid. Common fossils of the cave include crinoids, blastoids, and gastropods. Lily-like crinoids were abundant, and trilobites were still fairly common. Marine life is especially rich in crinoids and other echinoderms. Amongst the echinoderms, the crinoids were the most numerous.