IO SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 65 



suggesting in form the fresh-water cray fishes found in the streams 

 and ponds all over the world. 



These fossils are the oldest animal remains now known, and the 

 algal deposits which occur at intervals for several thousand feet 

 below the shales containing the crustaceans, are the oldest authentic 

 vegetable remains. It is also most interesting that two types of 

 bacteria have been found in a fossil state in the rock in association 

 with the algal remains. 



On the north side of the Gallatin River, two very rich beds of 

 algal remains were found, many of which, on account of the fossil 

 being silicified and embedded in a softer limestone, were weathered 

 out in relief, as shown by figure 8. 



Fig. 11. — Calvert Cliffs, Chesapeake Bay, Maryland, showing outcrop of 

 Miocene bryozoan beds. Photograph by Bassler. 



STUDIES IN COASTAL PLAIN STRATIGRAPHY AND 

 PALEONTOLOGY 



Dr. R. S. Bassler, curator of paleontology, U. S. National Museum, 

 was engaged during the month of June, 19 14, in a study of the 

 Tertiary paleontology and stratigraphy of the Atlantic Coast Plain 

 with special reference to the bryozoan faunas. This work was for 

 the purpose of making further collections and of determining the 

 stratigraphic relations of these bryozoan faunas for publication in 

 the Monograph of North American Early Tertiary Bryozoa, now in 

 course of completion by Ferdinand Canu of Versailles, France, and 

 Dr. Bassler. 



