User:Abyssal/Prehistory of North America/DYK/2


 * ... that a fossil of the extinct monitor lizard Saniwa preserves cartilage, scales, and even a wind pipe?
 * ... that Adolf Carl Noé challenged disbelief in the possibility of North American coal balls (example pictured) by presenting a wheelbarrow full of them?
 * ... that the extinct stingray Heliobatis (pictured) has been found with up to three stings on its tail?
 * ... that Leurospondylus ultimus was so named as it was originally thought to be the last occurrence of a plesiosaur?
 * ... that Cliff Palace (pictured) is the largest cliff dwelling at Mesa Verde National Park, a World Heritage Site in Colorado?
 * ... that Cottonwood Limestone from Kansas was used to build landmarks like the Kansas State Capitol, Great Overland Station, and Bill Snyder Family Football Stadium (pictured)?
 * ...that the exposed bedrock of the Duluth Complex was formed from magma emitted when the North American plate began to split apart in the Midcontinent Rift?
 * ... that the collection of the Arizona Mining and Mineral Museum includes a specimen of native copper that is 8 ft (2.4 m) long?
 * ... that the extinct wasps Dryinus grimaldii and Dryinus rasnitsyni are distinguishable by the modified claws on their front legs?
 * ... that the Miocene maple Acer latahense is most similar in appearance to the living Honshū maple?