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Valley of the Mastodon · 5d ago

Fossil Friday – mastodon molar

This August we’re opening a major new exhibit and hosting an associated workshop at Western Science Center, Valley of the Mastodons. In the lead-up to the exhibit/workshop, I’m going to be t...
Valley of the Mastodon · 1W ago

Fossil Friday – Bison humerus

This rather stout bone is one of our best-preserved bison humeri. This is the left humerus, shown above in anterior view.  The distal end, at the elbow joint, is on the left, while the proxi...
Valley of the Mastodon · 2W ago

Fossil Friday – new mastodon CT scans

Almost two years ago we took Max’s lower jaw to California Imaging and Diagnostics for a CT scan. We got some fascinating data that raised a lot of new questions, so to help answer them we r...
Valley of the Mastodon · 3W ago

Fossil Friday – mammoth jaw

Most of the current collections growth at the Western Science Center comes in the form of mitigation projects, fossils and artifacts that are recovered during various construction projects. ...
Valley of the Mastodon · 1M ago

Fossil Friday – Paramylodon claw

Sloths are fascinating animals, with all kinds of strange anatomical features. One of their signature characters is their enormous claws.  Although bones from the ground sloth Paramylodon ar...
Valley of the Mastodon · 1M ago

Fossil Friday – proboscidean ulna

Over the last few weeks we’ve started pulling a lot of mastodon material from the collections (more on that in a future post). Some of the bones that are turning up are pretty interesting. T...
Valley of the Mastodon · 1M ago

Crazy dental pathology

This post was originally published on my old VMNH blog, “Updates from the Paleontology Lab”, on March 8, 2010. The post includes anatomical observations that are relevant to human evolution;...
Valley of the Mastodon · 1M ago

Fossil Friday – pea clam

While the Diamond Valley Lake fossil fauna is best known for its mammals, there were also thousands of mollusks recovered. These are mostly minute freshwater species, and even though we have...
Valley of the Mastodon · 1M ago

Fossil Friday – partial mastodon skeleton

California mastodons have been in the news lately, so I decided to go with one of our Diamond Valley Lake mastodons for Fossil Friday this week. The specimen shown above is a partially artic...
Valley of the Mastodon · 2M ago

Fossil Friday – possible bobcat tooth

Confession time: I’m not an expert on most of the organisms I feature on Fossil Friday, and it sometimes takes me a fair bit of research to work out what I’m going to say. Because of that, w...