* [http://www.ucmp.berkeley.edu/diapsids/pterosauria.html Berkeley: Introduction to the Pterosauria: The Flying Reptiles] {{Webarchive|url=https://web.archive.org/web/20040611204511/http://www.ucmp.berkeley.edu/diapsids/pterosauria.html |date=11. juni 2004 }}
* [http://www.dinodatabase.com/dinothry01.asp dinodatabase.com: Flying Dinosaurs] {{Webarchive|url=https://web.archive.org/web/20040620102242/http://www.dinodatabase.com/dinothry01.asp |date=20. juni 2004 }} Citat: "...pterosaurs...were not dinosaurs, although they were related to them; they were flying reptiles..."
* [http://teacher.scholastic.com/researchtools/articlearchives/dinos/flying.htm teacher.scholastic.com: Answers to Kids' Questions About: Dinosaurs – Flying Reptiles] {{Webarchive|url=https://web.archive.org/web/20040604114950/http://teacher.scholastic.com/researchtools/articlearchives/dinos/flying.htm |date= 4. juni 2004 }} Citat: "...The flying guys were pteranodons, flying reptiles. The biggest was quetzalcoatlus, 43 feet wide! That's as wide as a fighter jet airplane! (Don Lessem)..."
* [http://sped2work.tripod.com/cloud-dragon.html QUETZALCOATLUS: Dragon of the Clouds] {{Webarchive|url=https://web.archive.org/web/20040614045816/http://sped2work.tripod.com/cloud-dragon.html |date=14. juni 2004 }}
* [http://news.bbc.co.uk/1/hi/sci/tech/4223658.stm 8 September 2005, BBC News: Flying reptiles just got bigger] {{Webarchive|url=https://web.archive.org/web/20050910085904/http://news.bbc.co.uk/1/hi/sci/tech/4223658.stm |date=10. september 2005 }} Citat: "...Pterosaur trackways recently found in Mexico suggest the animals could achieve a wingspan of 18m. There are also Romanian and Brazilian fossils from creatures that reached 13 or 14m (42-45ft) across..."
* [http://www.caller2.com/1999/october/15/today/national/1577.html October 15, 1999, caller.com: Flying dinosaur was mean, graceless] {{Webarchive|url=https://web.archive.org/web/20040520065927/http://www.caller2.com/1999/october/15/today/national/1577.html |date=20. maj 2004 }} Fiercesome bird may have been first flying feathered animal to evolve. (Associated Press) Citat: "...Archaeoraptor liaoningensis..."
* [http://www.cnn.com/2003/TECH/science/10/30/flying.reptile.reut/  October 30, 2003, CNN: Scientists: Flying dinosaur cousins nimbler than birds] {{Webarchive|url=https://web.archive.org/web/20040828134614/http://www.cnn.com/2003/TECH/science/10/30/flying.reptile.reut/ |date=28. august 2004 }} Citat: "..."Despite their antiquity, they could have outperformed modern birds and bats," Unwin added..."
* Mytologisk?: [http://www.angelfire.com/mi/dinosaurs/flyingserpent.html Pterosaurs in the Bible] {{Webarchive|url=https://web.archive.org/web/20040626005052/http://www.angelfire.com/mi/dinosaurs/flyingserpent.html |date=26. juni 2004 }}
Geologi