1887] Geology and Paleontology. 67 
wicks and Haddonfield. Their position may be in the Lower 
Marl-beds or in the clays proper. More study and investigation 
is necessary to determine this point. Lower down in the clay 
fossil plants occur cretaceous in character (Newberry). 
The Lower Green Marls hold most of the cretaceous fossils, 
and this fact, together with a showing of the comparative rich- 
ness in fossils of the entire series discussed, is made evident by 
the following tables : 
Summary of Lamellibranchiata. 
Formations. amilies. Genera. Species. 
Plastic Clays 4 4 5 
Camden Clays I 12 
ower Marls 27 76 155 
Middle Marls 8 II 
Base of Upper Marls 12 13 16 
Eocene Upper Marls 12 t7 23 
Total 31 89 222 
j Summary of Gastropods. 
rmations. Families. Genera. Species. 
Plastic Clays ‘us kis 1? 
den Clays bèr sis ae 
Lower Marls 25 60 125 
Middle Marls 5 6 y 
Base of Upper Marls 7 8 8 
Eocene Upper Marls 2I 29 52 
Total 31 80 190 
Summary of Cephalopods. 
Species. 
Lower Marls wO 
Middle Marls ; I 
Eocene Marls 2 
General Summary of Species. 
retaceous. Eocene. 
Brachi opods 5 2 
Lamellibranchiata 199 s4 
138 52 
= nade Ae A 12 2 
Total 354 79 
The fossils are usually restricted to single beds, at most only 
four molluscan forms, arate from one bed to another. The 
of this age, only Be species bein ngr seat, all Terebratulide. 
Of the brachiopods, Terebratula harlani and T. lachryma occur 
in South Carolina, and T. foridana in Alabama. 
