Bryozoa of the Upper Helderberg group
Subtitle: Plates and explanations ...
Published: 1866
Place of publication: [Albany
Language: eng
Number of pages: 29
Subjects: Bryozoa, Fossil.; Paleontology -- Devonian.
Notes: "Published in advance of the report of the state geologist for 1886, and of volume VI, Palæontology of New York, 1886."