User:Abyssal/Prehistory of North America/DYK/34
![](http://upload.wikimedia.org/wikipedia/commons/thumb/5/54/Coalball.jpg/100px-Coalball.jpg)
- ... that coal balls are not made of coal?
- ... that the extinct Jamaican Flightless Ibis developed unique club-like wings that could be used as a flail?
- ... that plates in the pre-Columbian Wulfing style, likely made by the same workshop at Cahokia, have been found as far apart as Oklahoma, Illinois, and Florida?
- ... that Puppigerus, an extinct sea turtle, had a specialized jaw structure which kept it from accidentally inhaling water?
- ... that the North Atlantic breakup resulted in the separation of Eurasia from North America, forming the North Atlantic Ocean?
- ... that a mummy was found in a cave in Wyoming?
- ... that archaeological excavations in Frightful Cave, in Coahuila, Mexico, recovered over 950 fibre sandals and the remains of an aged woman?
- ... that over the course of the history of stegosaur research, their iconic back plates have been thought to function as armor plating, to regulate body temperature, or to attract mates?
- ... that a new dinosaur (pictured) discovered in North and South Dakota has been nicknamed the "chicken from hell"?
- ... that the extinct Phlebotominae sandfly Pintomyia falcaorum is known only from Miocene age Dominican amber found on Hispaniola?