Paleontology. Excavation yields tantalizing hints of earliest marine reptiles.
Richard
R
Stone
D000818:Animals; D059001:Aquatic Organisms / Q000502:physiology; D002681:China; D053476:Extinction, Biological; D005580:Fossils; D009792:Oceans and Seas; D012104:Reptiles / Q000033:anatomy & histology / Q000502:physiology