168 



Report of the State Geologist. 



ville, or approximately 725 feet above the railroad level in Sherburne village, 

 which makes its altitude about 1,767 feet A. T. This outcrop belongs in the 

 Ithaca formation. A rather hasty search revealed the following fossils : 



1. Liorhyrbchus mesacostalis, Hall. (a) 



2. Spirifer granulosus (Con.), Hall (?). (rr) 



3. Spirifer, probably Sj>. mucronatus (Con.), Bill. (rr) 



4. Cyrtina Hctmiltonensis, Hall. (c) 



5. Chonetes scitula, Hall. (rr) 



6. Productella speciosa, Hall (?). (c) 



Very similar to specimens identified as this species at Ithaca. 



7. Xucula corbuliformis, Hall. (rr) 



XIX D 1 . At the corner of the second east and west road, north of the 

 Sherburne and Columbus turnpike, and one and one-half miles northwest of 

 XIX B 8 , is the head of the northeast branch of Mad brook. Beginning 

 immediately below the road, and appearing at intervals down the brook, are 

 blackish shales containing abundant fossils. An anticlinal roll crosses the 

 brook some distance below the road. These shales are on the Andrews farm, 

 two miles northeast of the Sherburne reservoir at Harris ville, and the upper 

 part of them is some 590 feet above the railroad at Sherburne. The abundant 

 fossils are all Hamilton species, and the shales are apparently in the upper 



part of the Hamilton formation. The following species were obtained: 



1. Spirifer mucronatus (Con.), Bill. (a) 



2. Spirifer granulosus (Con.), Hall. (c) 



3. Spirifer Ttdlius, Hall. (rr) 



4. Vitulina ' pustulosa, Hall. (rr) 



5. Tropidoleptus carinatus (Con.), Hall. (c) 



6. Chonetes scitula, Hall. (c) 



These resemble somewhat C. setigera, H., but are probably rather 

 short forms of the above. 



7. Zwngula punctata, Hall. (rr) 



8. Nucula corhuliforniis, Hall. (rr) 



9. Pakeon&ilo maxima (Con.), Hall (?). (rr) 

 Id. Jjiopteria, sp. (rr) 

 1 1. Dalmanites (Cryphaus) Jioothi (Green), Hall. (rr) 

 12. Phac<>j>s rana (Green), Hall. (rr) 



On r 1 i * - hill south of the creek and 1 5<» feet higher, are arenaceous iron- 

 stained shales that contain an occasional small lamellibranch and Liorli i/nchu.s. 



