Collaborative Decision Making (CDM) Welcome to Collaborative Decision Making (or CDM), stop three of your tour! CDM is a phrase that has very broad implications. It is really more a philosophy on how to conduct business between the various components of aviation transportation, both government and industry. There are 24 airlines currently participating in this initiative.
Frequently Asked Dinosaur Questions. Question #11: How many dinosaurs were there? Answer: There are over dinosaur 500 genera (the plural of genus) that have been found, named and scientifically accepted. There are about an additional 100 genera that are dubious (these are frequently referred to as nomen dubium).
1 Lemur Species. 2  There are many more species of Lemurs than most people realize. 3  It is believed that that there are at least 99 of them that still survive including subspecies. 4  There are also many that are believed to already be extinct over millions of years ago.