paleontology

That’s the shoulder and pelvic girdle of the plesiosaur (elasmosaur maybe) skeleton cast that the Fort Collins Museum of Discovery has on display.

Looks like three groups of marine diapsids, ichthyosaurs, mosasaurs, and thalattosuchians, all evolved “hypocercal” tail fins.

A Museum You Should Visit

If you happen to be in Casper, Wyoming, you should visit Tate Geological Museum. It’s a small, but very well done geology and paleontology museum. There’s interesting things for most family members, even well-informed 4-year-olds could have fun and learn things.