The Princeton area is also well known for its Eocene aged lake deposits. Sandstones, paper shales, siliceous shales and cherts occur throughout the region exposed at road cuts, along railway beds and at construction sites. A wide array of exquisitely preserved compression fossils, of both plants and animals, are found in the paper shales and siliceous shales. And the Princeton Chert is world renown for its cellular level preservation of plant structures.
A fabulous collection of local fossils and minerals is housed at the Princeton Museum. Most of the specimens were collected personally by Joe Pollard (deceased) and donated by his wife on the condition the collection not be broken up. Much of Joe's collection still remains in storage, but plans are being made to move the museum to a larger facility so his collection can be properly curated and displayed.
The Allenby Formation gets its name from the small abandoned mining camp/town of Allenby which is located across the Similkameen River from Princeton.
I will be posting photos of typical (and not so typical) fossils found in the Princeton area from the Allenby Formation. Many of the specimens are the result of collecting in the area on and off over the last 15 years.
To start things off I'd like to share a photo of what I believe is Stonebergia columbiana. This is the only specimen I have ever collected but Stonebergia is fairly common at some sites. This specimen is from the Coalmont Road Site.
middle Eocene Allenby Formation. This specimen measures 12.5 cm diagonally.
Edited by palaeopix, 25 January 2011 - 11:37 PM.