Title: A new chelydrid turtle Protochelydra zangerli from the late Paleocene of North Dakota
First published: 1973
Subjects: Paleontology, Protochelydra zangerli
Places: North Dakota, Billings Co
Time periods: Paleocene
LC classification: Q11 .S2683 vol. 2, no. 2, QE862.C5 .S2683 vol. 2, no. 2