INTRODUCTION 



j 



} [as in -58]. 



56 Palaeontology. 



560 Form divisions [see Table B]. 



56( 1 1 ) Stratigraphical. 



[divided as in Table C]. 



56(3-9) Regional. 



[divided as in Table C]. 



56 : Relation divisions. 



561 Fossil plants. 



'5612 Phanerogams 



5613 Dicotyledons 



5614 Monocotyledons 



5615 Gymnosperms 



5616 Cryptogams 



5 6 1 7 Pteridophy tes 



5618 Bryophytes 



5619 Thallophytes 



562-569 Fossil animals. 



562 Invertebrates i 



5631 Protozoa 



5632 Eadiata 



*5 6 33 Coelenterata 



564 Mollusca 



565 Articulata 



566 Vertebrates 



567 Fishes 



5676 Amphibia 



5681 Keptiles 



5682 Birds 



569 Mammals 



57 Biology. 



570 Form divisions [see Table B]. 



57 : Relation divisions. 



571 Prehistoric archaeology. 



- [as in -59], 



16 



