Echinoids
Paracidaris texanus
Glen Rose Formation
Polydiadema travisensis
Glen Rose Formation
Leptosalenia texana
Glen Rose Formation
Pliotoxaster whitei
Walnut Formation
Heterosalenia (rykyrae)
Glen Rose Formation
Heteraster texanus
Glen Rose Formation
Heteraster obliquetus
Glen Rose Formation
Tetragramma texanum
Walnut Formation
Pliotoxaster comanchei
Glen Rose Formation
Hyposalenia phillipsae
Glen Rose Formation
Pygopyrina hancockensis
Glen Rose Formation
Holaster simplex
Georgetown Formation
Globator whitneyi
Georgetown Formation
Plagiochasma texana
Glen Rose Formation
Goniophorus scotti
Del Rio Formation
Coenholectypus planatus
Walnut Formation
Pednopsis engerrandi
Comanche Peak Formation
Loriolia rosana
Glen Rose Formation
Goniopygus sp.
Glen Rose Formation
Phymosoma texanum
Walnut Formation
Goniopygus whitneyi
Glen Rose Formation
Tetragramma tenerum
Glen Rose Formation
Globator parryi
Comanche Peak Formation
Echinothurid plates
Glen Rose Formation
Hemiaster bexari
Corsicana Formation
Codiopsis stephensoni
Corsicana Formation
Diplodetus (Plesiaster) americanus
Corsicana Formation
Leptosalenia mexicana
Walnut Formation
Parorthopsis comalensis
Glen Rose Formation
Goniopygus zitelli
Edwards Formation
Leptosalenia sp.
Glen Rose Formation
Micraster uddeni
Austin Chalk Formation
Unknown Echinoid
Glen Rose Formation
Coenholectypus ovatus
Walnut Formation
Leptosalenia volana
Buda Formation
Hemiaster calvini
Georgetown Formation
Plagiochasma texana
Glen Rose Formation
Macraster texanus
Georgetown Formation
Washitaster sp.
Del Rio Formation
Tetragramma taffi
Walnut Formation
Pseudodiadema aguilerai
Glen Rose Formation
Macraster elegans
Duck Creek Formation
Anorthopygus texanus
(Not Central Texas)
Heteraster mexicanus
(Not Central Texas)
Tetragramma taffi
(Not Central Texas)
Balanocidaris Spine
Glen Rose Formation
Balanocidaris Spine
Glen Rose Formation
Balanocidaris Spines
Glen Rose Formation
Cidarid Spine
Cidarid Spine
Echinoid Spine
Size: 1/2 inch
Echinoid Tooth
Cidarid Echinoid Spine
Echinoid Spine
Echinoid Spine
Echinoid Spine
