Van Winkle, K., 1918. Paleontology of the Oligocene of the Chehalis Valley, Washington. University Of Washington Publications In Geology, 1 (2 ): 69 -92 .
(4.62 MB)
New Species-Group Names:
- washingtonensis Van Winkle, 1918. p. 92. pl. vii. f. 9.
Van Winkle, K., 1918. Paleontology of the Oligocene of the Chehalis Valley, Washington. University Of Washington Publications In Geology, 1 (2 ): 69 -92 .