Perot Museum of Nature and Science in Dallas is chipping away at the fossilized remains of the prehistoric marine reptile.

During high school, Caldwell spent his summers in eastern Montana, “digging up dinosaurs” and volunteering for the Carter County Museum in Ekalaka, where he continues to teach every summer at ...

Long before neighborhoods sprawled across North Texas, ancient seas teemed with formidable marine reptiles. One of those long ...