A middle Ordovician graptolite fauna from near the contact between the Ledbetter slate and the Metaline limestone in the Pend Oreille mine, northeastern Washington State
By: by Claire Carter.
Series: U.S. Geological Survey bulletin -- 1860-A; Shorter contributions to paleontology and stratigraphy
Publisher: U.S. G.P.O.
Published: 1989
Place of publication: [Washington]
Language: eng
Number of pages: 23
Subjects: Graptolites -- Washington (State); Paleontology -- Ordovician.; Paleontology -- Washington (State) -- Ordovician.
Notes: "Descriptions and illustrations of a rich and stratigraphically important graptolite fauna from Washington State."

Includes bibliographical references (p. 22-23).