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Echinoids are found in all Cretaceous Formations. Listed below the scientific name is the Geological Formation each were found in. Some echinoids are found in multiple formations, others in only one. See the Central Texas Formations page for more specific finds from each Formation.
Paracidaris texanus
Paracidaris texanus
Glen Rose Formation
Polydiadema travisensis
Polydiadema travisensis
Glen Rose Formation
Leptosalenia texana
Leptosalenia texana
Glen Rose Formation
Pliotoxaster whitei
Pliotoxaster whitei
Walnut Formation
Heteraster texanus
Heteraster texanus
Glen Rose Formation
Heterosalenia (rykyrae)
Heterosalenia (rykyrae)
Glen Rose Formation
Heteraster obliquetus
Heteraster obliquetus
Glen Rose Formation
Tetragramma texanum
Tetragramma texanum
Walnut Formation
Pliotoxaster comanchei
Pliotoxaster comanchei
Glen Rose Formation
Hyposalenia phillipsae
Hyposalenia phillipsae
Glen Rose Formation
Holaster simplex
Holaster simplex
Georgetown Formation
Pygopyrina hancockensis
Pygopyrina hancockensis
Glen Rose Formation
Globator whitneyi
Globator whitneyi
Georgetown Formation
Unknown Echinoid
Unknown Echinoid
Walnut Formation
Goniophorus scotti
Goniophorus scotti
Del Rio Formation
Coenholectypus planatus
Coenholectypus planatus
Walnut Formation
Pednopsis engerrandi
Pednopsis engerrandi
Comanche Peak Formation
Loriolia rosana
Loriolia rosana
Glen Rose Formation
Goniopygus sp.
Goniopygus sp.
Glen Rose Formation
Phymosoma texanum
Phymosoma texanum
Walnut Formation
Goniopygus whitneyi
Goniopygus whitneyi
Glen Rose Formation
Tetragramma tenerum
Tetragramma tenerum
Glen Rose Formation
Globator parryi
Globator parryi
Comanche Peak Formation
Echinothurid plates
Echinothurid plates
Glen Rose Formation
Hemiaster bexari
Hemiaster bexari
Corsicana Formation
Codiopsis stephensoni
Codiopsis stephensoni
Corsicana Formation
Diplodetus (Plesiaster) americanus
Diplodetus (Plesiaster) americanus
Corsicana Formation
Leptosalenia mexicana
Leptosalenia mexicana
Walnut Formation
Parorthopsis comalensis
Parorthopsis comalensis
Glen Rose Formation
Goniopygus zitelli
Goniopygus zitelli
Edwards Formation
Leptosalenia sp.
Leptosalenia sp.
Glen Rose Formation
Micraster uddeni
Micraster uddeni
Austin Chalk Formation
Unknown Echinoid
Unknown Echinoid
Glen Rose Formation
Coenholectypus ovatus
Coenholectypus ovatus
Walnut Formation
Leptosalenia volana
Leptosalenia volana
Buda Formation
Hemiaster calvini
Hemiaster calvini
Georgetown Formation
Plagiochasma texana
Plagiochasma texana
Glen Rose Formation
Macraster texanus
Macraster texanus
Georgetown Formation
Washitaster sp.
Washitaster sp.
Del Rio Formation
Phymosoma bybeei
Phymosoma bybeei
Austin Chalk Formation
Macraster kentensis
Macraster kentensis
Duck Creek Formation
Pseudodiadema aguilerai
Pseudodiadema aguilerai
Glen Rose Formation
Tetragramma taffi
Tetragramma taffi
Walnut Formation
Macraster elegans
Macraster elegans
Duck Creek Formation
Balanocidaris Spines
Balanocidaris Spines
Glen Rose Formation
Balanocidaris Spine
Balanocidaris Spine
Glen Rose Formation
Balanocidaris Spine
Balanocidaris Spine
Glen Rose Formation
Balanocidaris Spine
Balanocidaris Spine
Glen Rose Formation
Cidarid Spine
Cidarid Spine
Cidarid Spine
Cidarid Spine
Echinoid Spine
Echinoid Spine
Size: 1/2 inch
Echinoid Tooth
Echinoid Tooth
Cidarid Echinoid Spine
Cidarid Echinoid Spine
Echinoid Spine
Echinoid Spine
Echinoid Spine
Echinoid Spine
Echinoid Spine
Echinoid Spine
Echinoid Mouthpart Rotulla
Echinoid Mouthpart Rotulla
Anorthopygus texanus
Anorthopygus texanus
(Not Central Texas)
Heteraster mexicanus
Heteraster mexicanus
(Not Central Texas)
Tetragramma taffi
Tetragramma taffi
(Not Central Texas)
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