Upper and Lower Glen Rose Formation
Aprox. 106- 110 Million Years Ago
Ammonite Hypacanthoplites mayfieldensis
Ammonite Platiknemiceras flexuosum
Ammonite Dufrenoyia dufrenoyi
Echinoid Leptosalenia texana
Echinoid Coenholectypus planatus
Echinoid Heteraster texanus
Echinoid Heteraster obliquetus
Echinoid Pliotoxaster comanchei
Echinoid Heterosalenia (rykyrae)
Echinoid Leptosalenia sp.
Echinoid Goniopygus whitneyi
Echinoid Paraorthopsis comalensis
Echinoid Plagiochasma texanum
Echinoid Hyposalenia philipsae
Echinoid Pygopyrina hancockensis
Echinoid Polydiadema travisensis
Echinoid Tetragramma tenerum
Echinoid Phymosoma texanum
Echinoid Pseudodiadema aguilera
Echinoid Paracidaris texanus
Echinoid Balanocidaris Spines
Echinoid Echinothurid Plates
Ray Pseudohypolophus mcnultyi
Crab Leg Pagurus banderensis
Crinoid Isocrinus annulatus
Crinoid Isocrinus annulatus
Crinoid Isocrinus annulatus
Crinoid Isocrinus annulatus
Crinoid Solanocrintes sp.
Coral Heliopora labyrinthicum
Gastropod Tylostoma lewisi
Gastropod Tylostoma lewisi
Gastropod Nerinea boyseni
Gastropod Nerita bonnellensis
Gastropod Trochactaeon gardnerae
Gastropod Monocyphus brittsi
Gastropod Fusus haysensis
Gastropod Cassiope branneri
Gastropod Drepanochilus sp.
Gastropod Nerinea harrisi
Gastropod Pleutomaria glenrosensis
Gastropod Anchura monolifera
Gastropod Tylostoma regina
Gastropod Pseudomelania pupoides
Gastropod Nerinea colligata
Gastropod Cassiope paluxiensis
Gastropod Cerithium bullardi
Gastropod Cassiope burnsi
Gastropod Tylostoma casteeli
Gastropod Amauropsis comalensis
Gastropod Nerinea aquilina
Gastropod Purpuroides harperi
Gastropod Lunatia praegrandis
Bivalve Laternula simodsi
Bivalve Mytilus hugoensis
Bivalve Cardium congestum
Bivalve Fimbria hamiltonae
Bivalve Inoperna concentricecostellata
Bivalve Neithea occidentalis
Bivalve Trigonia wendleri
Bivalve Granocardium pseudopendens
Bivalve Plicatula parkerae
Bivalve Homomya comalensis
Bivalve Idonearca terminalis
Bivalves Ludbrookia arivechensis
Bivalve Arctica comalensis
Bivalve Homomya knowltoni
Bivalve Fimbria hamiltonae
Bivalve Arctica cf comalensis
Bivalve Granocardium pendens
Bivalve Trigonia wendleri
Bivalve Granocardium pseudopendens
Bivalve Mytilus hugoensis
Bivalve Arctica naviclaria
Bivalve Cardita staffordi
Bivalve Cucullaea blancoensis
Bivalve Idonearca gracilis
Bivalve Protocardia texana
Oyster Peilinia crenulimargo
Bivalve Ceratostreon texanum
Bivalve Ceratostreon hilli
Rudiest Monpleura marcida
Rudist Caprinuloidea occidentalis
Rudist Monopleura subtriquetra
Bryozoan Oncousoecia khirar
Foraminifera Orbitolina texana
Foraminifera Orbitolina texana
Foraminifera Nodosaria cf
Worm Pyrgopolon squamosus