Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
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15 Slab with Spirifera cycloptera, Hall and Rhynchonella nucleata, Hal.
Lower Helderberg group. Clarksville, N.Y.
16 Schizodus ? fissa, Hall.
Schoharie grit Clarksville, N.Y.
17 Platyceras n.sp.
Lower Helderberg group. Jerusalem Hill, Herkimer Co. N.Y.
18 Pholidops ovata, Hall. Shaly limestone
Lower Helderberg group Clarksville, N.Y.
19 Chonetes n.sp. Shaly limestone
Lower Helderberg group. Clarksville N.Y.
20 Tropidocaris alternata Beecher.
Waverly group. Warren Pennsylvania,
21 Strophodonta punctulifera, Conrad.(intima of ventral valve)
Shaly limestone, Lower Helderberg group. Clarksville, N.Y.
22 Platyceras n.sp.
Lower Helderberg group. Hudson (Beecrafts Mt.) N.Y.
23 Dalmanites pteropteryx, Green Shaly limestone
Lower Helderberg group. Clarksville, N.Y.
24 Avicula securiformis, Hall (right valve) Shaly limestone
Lower Helderberg group. Clarksville, N.Y.
25 Receptaculites infundibuliformis Eaton, Shaly limestone
Lower Helderberg group. Clarksville N.Y.
26 Eurypterus remipes, DeKay Waterlime group.
Jerusalem Hill, Herkimer Co. N.Y.
27 Mediomorpha mytiloides, Conrad.
Hamilton group. Pratt's Falls. Oneida Co. N.Y.
28 Strophodonta leadbeyana, Hall. Shaly limestone
Lower Helderberg group Clarksville, N.Y.