User:Abyssal/Prehistory of North America/DYK/8

... that a small fetus is preserved in the holotype fossil of the extinct stingray Asterotrygon?
... that James L. Swauger continued his archaeological work with petroglyphs for fifteen years after his nominal retirement?
... that what is now the southwestern United States was at one time connected to East Antarctica according to the SWEAT model?
... that the extinct rose species Stonebergia columbiana is named for its type locality of British Columbia?
... that the Classic Period Maya archaeological site of Quiriguá in Guatemala has what is possibly the largest free-standing worked monolith (pictured) in the New World?

... that paleontologists have discovered the fossilized eggs of cephalopods, fishes, and reptiles, with some dinosaur eggs (pictured) being preserved with pathological shell deformities?
... that fossils of the extinct hazelnut relative Coryloides were informally identified as palm nuts first?
... that the Ph.D dissertation of taphonomist Kay Behrensmeyer suggested that sauropods were terrestrial?
... that the extinct sumac Rhus rooseae was described from fossils over 35 million years old?
... that the extinct hazel species Corylus johnsonii (fruit pictured) resembles three modern hazels found in China?