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@doktrock@toad.social
2026-08-14 16:42:43

Selkirk Member of the Ordovician Red River Formation, aka Tyndall Stone commercially, as seen in Winnipeg, Canada.
Complex 3D burrows are interpreted as Thalassinoides; the color difference is due to dolomite vs calcite matrix. #FossilFriday urban #geology

The outside of Winnipeg Art Gallery WAG
Blocks of Tyndall Stone as seen on the outside of the Winnipeg Art Gallery
Closer view of the Tyndall Stone; the mottles are a few centimeters across
Base of the statue is Tyndall stone. Statue of Dale Hawerchuk, who, according to a plaque "put the Winnipeg Jets Hockey Club on the map the day he arrived in our city in 1981, and his love for our community and remarkable Hall of Fame career will keep it there for many generations to come. Our players, alumni and fans will forever be inspired by his passion for the game and his commitment to his team. Bronze statue by Erik Blome, inspired by a photograph by Bruce Bennett. Dedicated October 2022
@doktrock@toad.social
2026-08-01 12:52:10

Rare and most complete #mammoth #fossil discovery in North Dakota being excavated from beneath a garage!
Funds were allocated by the North Dakota legislature specifically for this project. #FossilFriday

@doktrock@toad.social
2026-09-05 14:20:37

A few Cretaceous age dinosaur bones have been discovered in #Minnesota - jaw portions of Terminonaris, and a tail vertebra of a hadrosaur. The state #fossil is the Giant Beaver; this specimen is from Saint Paul.
Crossover post

Fossil display, collection of the Science Museum of Minnesota The Time of the Dinosaurs Lots of Life, but Few Dinos Towards the end of the time of the dinosaurs, an ocean covered much of Minnesota. Its warm, shallow waters teemed with sharks, long-necked marine reptiles, and ancient crocodiles! But dinosaurs only lived on land, so their fossils are extremely rare here. Crocodilian Jaw Portion Terminonaris robusta About 95 million years old Cretaceous Period Calumet, Minnesota Cast SMM P68.56.1 …
Display of a giant beaver skeleton.
Sign: Meet Minnesota's State Fossil: The Giant Beaver At the end of the last ice age, this rodent of unusual size inhabited waterways and glacial lakes throughout North America. With its buck teeth and aquatic lifestyle, it probably looked a lot like modern beavers. But you would have noticed at least one big difference: weighing up to 200 pounds, it was the size of a small bear. Size isn't the only difference between this ice age giant and its modern cousins. Scientists think the giant beaver …