Oceans of Kansas Paleontology

http://oceansofkansas.com/

Well known  paleontologists who have discovered fossils in Kansas   Systematics and morphology of American mosasaurs by Dale Russell "The best publication about mos

Chelicerata

https://www.scientificlib.com/en/Biology/Animalia/Arthropoda/Chelicerata.html

have been classified by paleontologists as scorpions, but described as wholly aquatic as they had gills rather than book lungs or tracheae. Their mouths are also completely under
Chelicerata, Online Biology, Biology Encyclopedia, Science

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