"Spirifer disjunctus"
Subtitle: its evolution and paleoecology in the Catskill delta.
Published: 1957
Place of publication: New Haven
Language: eng
Number of pages: 75
Subjects: Spiriferidae, Fossil.; Paleontology -- New York (State); Paleontology -- Pennsylvania.
Notes: Bibliography: p. [69]-70.
Thesis--Yale University.