First Dinosaur Found In Washington State

First Dinosaur Found In Washington State

Why it took so long to find a dinosaur fossil in Washington
state by Stephanie Klein, MyNorthwest.com, May 20, 2015
http://mynorthwest.com/11/2763755/Why-it-took-so-long-to-find-a-dinosaur-fossil-in-Washington-state

Yours,

Paul H.

Pseudocoprolites, Miocene, Washington State

Pseudocoprolites, Miocene, Washington State

Pseudo-poo! All that glitters isn’t fecal gold
by Andrew Farke, PLOS Blogs, July 23, 2014
http://blogs.plos.org/paleo/2014/07/23/pseudo-poo-glitters-isnt-fecal-gold/

The papers that this article cites are:

Mustoe, G. E., 2001, Enigmatic origin of ferruginous “coprolites”:
Evidence from the Miocene Wilkes Formation, southwestern
Washington. Geological Society of America Bulletin vol. 113
no. 6, pp. 673–681.
http://bulletin.geoscienceworld.org/content/113/6/673

Seilacher, A., C. Marshall, H. C. W. Skinner, and T. Tsuihiji,
2001, A fresh look at sideritic “coprolites.” Paleobiology.
vol. 27, no. 1, pp. 7–13.
http://paleobiol.geoscienceworld.org/content/27/1/7.abstract

Spencer, P. K., 1993, The “coprolites” that aren’t: The
straight poop on specimens from the Miocene of
southwestern Washington State. Ichnos. vol. 2, no. 2,
pp. 231–236.
http://www.tandfonline.com/doi/abs/10.1080/10420949309380097

Yancey, T. E., G. E. Mustoe, E. B. Leopold, and M. T.
Heizler, 2013, Mudflow disturbance in latest Miocene
forests in Lewis County, Washington. PALAIOS.
vol. 28, no. 6, pp. 343–358.
http://palaios.sepmonline.org/content/28/6/343.short

A wikipedi image is "File:Pseudocoprolite.jpg" at
http://commons.wikimedia.org/wiki/File:Pseudocoprolite.jpg
Yours,

Paul H.

Washington Obsidian Source - Obsidian Outcrops

Washington Obsidian Source - Obsidian Outcrops

In “Washington Obsidian Source” at
http://lists.drizzle.com/pipermail/rockhounds/2012-June/037936.html
Sonja Kassa wrote,

“Still, I am an amateur, and would like advice/knowledge
about obsidian outcrops and how they occur or if anyone
has run into a similar situation and has advice! I would love
to hear it!”

Go look at:

1. the “U. S. and Canada Obsidian Source Catalog” at
http://www.sourcecatalog.com/

2. the “World Obsidian Source Catalog” at
http://www.obsidianlab.com/sourcecatalog/s_home.html

and 3. “Northwest Research Obsidian Studies Laboratory
Map Library “at
http://www.obsidianlab.com/image_maps/image_maps.html

Best wishes,

Paul H.