2 Sao 



3 Sao 



1 Sao 



6 Dalmanites 



6 Dalmanites 



7 Dalmanites 



Plate 



4 Sao 



8 Dalmanites 



HYPOPARIA 



12 Trinucleus I '13 Ampyx 



OPISTHOPARrA 



14 Atops 15 Conocoryphe f 16 Ptychoparia ^f f 17 Olenus H 18 Asaphus 



19 Iltenus V 20 Proetus " 21 Bronteus 22 Lichas ' 23 Acidaspis 



PROPARIA 



24 Placoparia 25 Encrinurus 26 Calymmene 27 Dipleura 28 Cheirurus 



Dalmanites \ I |/ 31 ChasmonsM 32 Acaste 33 Phacops 



CLASSIFICATION OF TRILOBITES 



