Maryland Geological Sukvey 83 



cuius (Conrad), OrUionola undulata Conrad, Pleurolomaria capillaria 

 Conrad ( ?), Bellerophon sp. 



Exposure at Millstone. — At the western end of Millstone village is 

 a blocky sandstone on the upper layers of which are good specimens 

 of Spirophyton velum (Vannxeni). This sandstone is perhaps the 

 one at the top of the Eonniey formation and is brought up at this 

 locality by a small anticlinal fold. Along the road east of this point are 

 olive, thin, micaceous shales, alternating with thin olive sandstones which 

 dip about 40° S., 10° E., and are in the lower part of the Jennings 

 formation. To the west of the anticline, the rocks dip westerly and 

 soon expose the olive shales and sandstones in the lower part of the 

 Jennings formation. No fossils were found in the Jennings shales in 

 the village although, probably, more careful search would reveal some. 



To the southeast of Millstone on the National Road about one-half mile 

 west of Licking Creek are yellowish, very argillaceous shales, much 

 spotted with red blotches from weathering, which contain Tropldnlepttis 

 cannatus (Conrad) in considerable abundance, Sp^rifcr inucronatus 

 (Conrad) and Chonetes; the complete list being as follows: Chonetes 

 mucronaius HaW, Chonetes setigcr (Hall), Tropidoleptus carinatus (Con- 

 rad), Spirifcr inucronatus (Conrad), Spirifer granulosus (Conrad), Sp-l- 

 rifer audacvlvs C Conrad), Bellerophon sp. 



A little farther west, a zone of quite heavy, massive sandstone crosses 

 the road which before weathering is grayish in color but aftei'wards has 

 a brownish tint. It is strongly arenaceous and breaks into rather small 

 blocks. A few fossils are to be found in it such as Spirifer; but they are 

 rath'er infrequent. Some 8 feet of the rock is shown with a dip of 70° 

 about N. For a few feet the roclfs are covered, then coarse sandy shales 

 appear and these in turn are followed by finer shales and then a sandstone 

 stratum 1 foot in thickness. This is probably an outcrop of the upper 

 sandstone of the Eomney formation. 



Exposure at Warren Point. — This outcrop occurs at the southern end of 

 the iron bridge crossing Licking Creek, ji;st over the state line in Penn- 

 sylvania, and a little more than 1 mile southeast of Warren Point. In 

 the cliff on the southern side of the creek, a short distance to the west;. 



