http://www.jcvi.org/reptiles/search.php?taxon=&genu s=&species=&subspecies=&author=&year=&common_name=& location=gobi&holotype=&reference=&submit=Search
http://www.jcvi.org/reptiles/search.php?taxon=&genu s=&species=&subspecies=&author=&year=&common_name=& location=NW+CHina&holotype=&reference=&submit=Searc h
http://www.jcvi.org/reptiles/search.php?taxon=&genu s=&species=&subspecies=&author=&year=&common_name=& location=mongolia&holotype=&reference=&submit=Searc h
http://www.jcvi.org/reptiles/search.php?taxon=&genu s=&species=&subspecies=&author=&year=&common_name=& location=SW+mongolia&holotype=&reference=&submit=Se arch
a z toho bych udělal geometrický průnik