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A sailback lizard, Edaphosaurus 



Almost six feet long, from the Red Beds of Texas. TI?e only one ivith perfect 

 skull and all skeleton from a sini^le individual 





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Unique mount of Ophiacodon 



About four feet long, from the Red Beds of Texas. Laid dozvv about one 

 hundred avd eighty iiiillion years ago 



Photos bv G. Xelson 



Unique type of Dynodontosaiirus olheroi Roiner 

 from southern Brazil 



Three of George Nelson's finest fossil reptiles 



