HORIZONS AND FOSSILS 348 



77) in the shale just beneath (3:83) the Furnace ville. ore (9:22, G8), 

 wrongly identified b,y him with the u^^per (Wolcott Furnace) ore. The 

 fossils are: 



Lingula ohlata CUcnoilontaf lata 



Lingula suhclUptica OrtJiodesma curtiim 



Palceoglossa acutirostris Cuncmnya alvcata 



Pterinea leptonota {emaccruta?) FyrcnomvcuH curicatu.s 



Modiolopsls suhalata Gyclora f suhula la 



Ctenodouta machcerifonnis Buvun'ui bvUupuinta 



Cteiiodonta curta JJatcsoiioccras anu'ricannnt:' 

 Gtenodonta mactrwformis 



The three feet of beds below the Furnaceville ore at Kochester formerly 

 embraced in either the lower shale (8: 13) or the lower limestone (12: 

 305) are referred to this horizon (compare Conrad^s annual report for 

 1836, page 176) and are believed to be the source of all the fossils re- 

 ported from the lower shale, both here and at Ontario, including the 

 crinoid of 3 : 181, plate Axli, figure 6, of which a nearly entire specimen 

 is at hand from Eochester. If distinct from the Martville, the Bear Creek 

 shale will lie above rather tlian below it. (See the Lakcport well.) 



OTSQUAGO SANDSTO^']'] 



This heavily cross-bedded red laminated sandstone is typically seen in 

 and near the Otsquago Creek (spelled also Otsquak and Squak) below 

 Vanhornsville (1: 80-81), wlience it extends westw^ard with gradual loss 

 of color to near New Hartford (1 : 85), where it seems to merge into the 

 supposed Martville. From Vanuxem's belief (1: 83) that it was cut off 

 Avestward by the disconformity seen at the toj^ of Blackstone's quarry, it 

 may be a distinct member wedging in above the ^'Martville," or equiva- 

 lent to the Bear Creek. The record of the Lakeport well favors the last 

 (see figure 4), as does the occurrence of Pyrenomceus near Iltica. No 

 other fossils seem to be reported from it. 



• A typical illustration of the remarkable structure of this stratum is 

 given in plate 2 of Hartnagel's paper on the Oneida (7, opposite 32). 



FURNACEVILLE IRON ORE 



Hartnagel, 1907 (8: 11). The lowest Clinton ore 1)ed anywhere recog- 

 nized in 'New York extends from the Orleans-Monroe County line (letter 

 from Ira Edwards) unbrokenly to Sterling Station, supposedly reappears 

 as an oolitic ore in the Brewerton and Lakeport wells, l)ut fails at A^erona 

 and eastward. As noted by Schuchert (12:305), it is (locidedly a slial- 



