GEOLOGICAL SUMMARY 



OF THE 



College Collection of Palaeontology. 



Tlie paleeontological material described in the body of the 

 catalogue is in the following summary given a clironological 

 arrangement. The species are broadly grouped zoologically^ 

 proceeding from lower to higher, under their respective Geologic 

 Ages and Periods, beginning with the earliest, thus giving the 

 classification which is most convenient and useful for a museum. 



The number before each name is the list number of the cata- 

 logue. 



The numbers in brackets are the numbers of casts, as recorded 

 at our Museum, and as published in the old " Catalogue of 

 Casts." These numbers will be plainly marked on both the 

 specimens and the labels accompanying them. 



Species of small size are usually represented by more than one 

 specimen. The number may slightly vary, but will always be 

 sufficient to fairly represent the species. 



CAMBRIAN AND SILURIAN. 



PROTOZOA. 



No. 506. Eozoon Canadense, Dawson. 



PORIFERATA. 



No. 493. Astraeospongia meniscus, Roem. 

 No. 495. [1164] Brachiospongia digitata, Owen. 

 No. 497. Cryptozoon protiferum, Hall. 

 No. 501. Receptaculites Oweni, Hall. 



CCELENTERATA. 



No. 490. G-raptolithus (Monoprion) clintonensis, Hall. 

 No. 491. Climocograptus typicalis, Hall. 

 No. 492. Diplograptus pristis, Hall. 



