Ceratiocaridae from the upper Devonian Measures in Warren county.
Subtitle: Eurypteridae from the lower productive coal measures in Beaver county, and the lower carboniferous, pithole shale, in Venanzo county
By: by James Hall.
Contributors: Hall, James, 1811-1898.
Series: Report of progress. PPP (Second Geological Survey of Pennsylvania)
Publisher: Board of Commissioners of the second Geological Survey
Published: 1884
Place of publication: Harrisburg
Language: eng
Number of pages: 39
Subjects: Ceratiocaridae; Eurypterida; Paleontology -- Pennsylvania; Paleontology -- Devonian; Paleontology -- Carboniferous
Notes: Publications of the second geological survey of Pennsylvania: p. 1-8