PQ looDoto ny 



The study of fossil plants, cf. Paleontology, Paleozoology. 



Paleocene 



The earliest geological epoch in the Tertiary period of 

 the Cenozoic era, which began about 75 million years ago 

 and lasted for about 17 million years. 



Paleoecology 



The study of Ecology of former geological periods. 



Paleogenic (Palaeogenic) 



See Paleozoic. 



Paleolithic 



Refers to the period of human history characterized by 

 food-gathering, fishing, and hunting, without cultivation; 

 and by the use of stone implements. 



Paleontology 



The study of the life of former geological epochs by 

 means of fossils, cf. Paleobotany, Paleozoology. 



Paleozoic 



One of the major geological eras, preceding the Mesozoic, 

 which began about 505 million years ago and ended about 

 205 million years ago. 



Paleozoology 



The study of animal fossils, cf. Paleontology, Paleobotany. 



Palingenesis 



The appearance during the development of an organism 

 of stages or structures which occurred in earlier forms dur- 

 ing its evolution, cf. Caenogenesis, Recapitulation. 



Paludel 



Refers to marshes. 



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