Bryozoa of the Upper Helderberg group. Plates and explanations ...
Hall, James, 1811-1898.
Bryozoa of the Upper Helderberg group. Plates and explanations ... - [Albany, 1866] - 29 p. 12 pl. 30 x 24 cm.
"Published in advance of the report of the state geologist for 1886, and of volume VI, Palæontology of New York, 1886."
gs 07000392
Bryozoa, Fossil.
Paleontology--Devonian.
QE798 / .H17
Bryozoa of the Upper Helderberg group. Plates and explanations ... - [Albany, 1866] - 29 p. 12 pl. 30 x 24 cm.
"Published in advance of the report of the state geologist for 1886, and of volume VI, Palæontology of New York, 1886."
gs 07000392
Bryozoa, Fossil.
Paleontology--Devonian.
QE798 / .H17