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).
There have been about 20 000 species described from Australia, but several thousand more are known in collections and the true number may exceed 30 000. Curculionidae is the largest family, with more than 6000 Australian species.Scarabaeidae and Chrysomelidae each has about half that number, Carabidae about 2500, and Staphylinidae, Tenebrionidae and Cerambycidae each between 1200 and 1500 species.here have been about 20 000 species described from Australia, but several thousand more are known in collections and the true number may exceed 30 000. Curculionidae is the largest family, with more than 6000 Australian species.