Morning with the local expert
Royal Tyrrell Museum geologist Dave Eberth donates time and expertise to help Callan’s students understand the Cretaceous-aged Horseshoe Canyon Formation in central Alberta.
dinosaurs
Armored mud balls
Ever seen an armored mud ball? In this post, Callan encounters a small herd of these geological oddities in a coulee in southern Alberta.
Pure silliness
Just because I felt like making something silly…
Two Sisters
All this talk about footprints and tail traces, and I haven’t even shown you any “for sure” dinosaur fossils. Well, let’s remedy that today. We return now to the scene: exposures of the Jurassic Morrison Formation, on the east side of the Bighorn Basin, just north of Shell, Wyoming. I was wandering around, finding things … Read more
Tall tail
Okay, so I was out photographing ripples and admiring lichens, and then I saw this: That’s a rippled slab of sandstone, but with a linear groove that obliquely cross-cuts the ripple marks. Smaller, parallel grooves lie within the main groove. Here’s another look at that same one, spun around and zoomed-in: It looks as if … Read more
Callan gets friendly with dinosaur
At the Sheridan College natural history museum, this past summer.
Team Rockies 2011
Our field class visited the Museum of the Rockies yesterday. Here’s the full team!
A major discovery
Visiting Butch Dooley and crew on a dinosaur dig in the Jurassic Morrison Formation on Wednesday morning, I did a lot of wandering around the area, dubbed the Two Sisters site. I noticed something in the sandstone at the top of one hillock, and thought it looked like a sauropod footprint: (The depression is filled … Read more
Scenes from the Virginia Museum of Natural History
The author describes a quick visit to the Virginia Museum of Natural History in Martinsville, Virginia, on his way back to DC from Thanksgiving travel. Highlights: a dinosaur, a giant stromatolite, encrusting crinoids (they do that?) and a giant ground sloth.