Echinoderm fossil modelo 3D almost 2 years 1 Balanocidaris marginata Echinoid modelo 3D almost 4 years 93 Echinoid Encope tamiamiensis modelo 3D almost 4 years 63 Crinoid stem segments modelo 3D almost 4 years 58 Actinocrinites gibsoni Crinoid modelo 3D almost 4 years 83 Clypeaster cortesei Echinoid modelo 3D almost 4 years 41 Echinoids Parascutella paulensis modelo 3D almost 4 years 42 Eucalyptocrinus Crinoid modelo 3D almost 4 years 36 Heterocentrotus mamillatus Echinoid modelo 3D almost 4 years 86 Eucalyptocrinites caelatus Crinoid modelo 3D almost 4 years 48 Echinoid modelo 3D almost 4 years 78 Schizaster Echinoid modelo 3D almost 4 years 48 Sand dollar conglomerate modelo 3D almost 4 years 39 Hemipneustes striatoradiatus Echinoid modelo 3D almost 4 years 34 Archaeocidaris immanis Echinoid modelo 3D almost 4 years 48 Stereocidaris hudspethensis Echinoid modelo 3D almost 4 years 40 Eupatagus antillarum Echinoid modelo 3D almost 4 years 37 Conulus albogalerus Echinoid modelo 3D almost 4 years 58 Daedalocrinus Crinoid modelo 3D almost 4 years 43 Melocrinus williamsi Crinoid modelo 3D almost 4 years 51 Agaricocrinus americanus Crinoid modelo 3D almost 4 years 50 Platyceras Gastropod on Crinoid modelo 3D almost 4 years 35 Echinocardium orthonotum Echinoid modelo 3D almost 4 years 43 Phymosoma texanum Echinoid modelo 3D almost 4 years 38 Crinoid stem segments modelo 3D almost 4 years 53 Clypeaster reticulatus Echinoid modelo 3D almost 4 years 39 Eucidaris tribuloides Echinoid modelo 3D almost 4 years 101 Phymosoma texanum Echinoid modelo 3D almost 4 years 53