422 



R. S. Lull — Life of the Connecticut Trias. 



Geologic Section of the Newark System of Connecticut 

 (modified from Schuchert). 



Character of 

 sediments 



Thickness 



Characteristic fossils 



Upper series of sand- 

 stones and shales 

 with local conglom- 

 erates 



3,500 ft. + 



The great majority of known footprints 

 of all varieties, vertebrate and inver- 

 tebrate ; also Mormolucoides articu- 

 latus. 



Anchisaurus spp., Am mosaurus and 

 Podokesaurus, among dinosaurian 

 skeletons. 



Stegomus longipes, skeleton. 



Posterior trap sheet 



150 ft. 





Black bituminous zone 



100 ft. 



Plants and fishes 



Posterior shales 



1,200 ft. 



Dinosaur tracks. First plant-feeding 

 dinosaur footprints known. Mt. Tom 

 East, Middlefield, etc. 



Main trap sheet 



500 ft. 





Anterior shales 



LOCO ft. 



First known dinosaurian footprints. 

 Carnivores. Mt. Tom West and Mt. 

 Holyoke ; Higby, Conn. 



Black shales 



50 to 100 ft. 



Plants and fishes 



Anterior trap sheet 



250 ft. 





Lower series 

 granitic, 

 coarse'sandstone 



(With intrusive trap 

 sheet, 500-600 feet 

 thick) 



5,000 to 

 6,500 ft. 



Rhytidodon validus, Simsbury, Conn. 

 Stegomus arcuatus, New Haven, Conn. 

 Estheria sp. West Holyoke, Mass. 



Sandstone 



200 to 300 ft. 





Gneisses, schists, and 

 granites 

 Pre-Mesozoic 







