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Date: Wed, 16 May 2001 14:20:24 -0600 (MDT)
From: kinman@usa.net
To: phylocode@ouvaxa.cats.ohiou.edu
Subject: My classification of coelurosaurs
I think it was Scott who said he didn't know what I was talking abou= t when I said intermediate clades don't have to be formally named. = Below is a good example, my preliminary classification of avetheropo= ds posted on DML this morning. Intermediate clades like avetheropods, coelurosaurs, avialae, etc., are encoded, but not "formally" recognized i= n my cladisto-eclectic classifications (The Kinman System, 1994). = *************************************** Dear All, I decided to begin seriously constructing a cladisto-eclectic classification of Order Saurischiformes. Below is my preliminary classification of coelurosaurs, plus its immediate allosaurid sister grou= p (so it is really a classification of the avetheropod clade). = Please note that I recognize broader families (as traditionalists te= nd to do). Perhaps the tyrannosaur implosion of genera will translate into a s= light implosion of family taxa as well (more like mine)? In any case, comments= are welcome. -----Ken Kinman Order Saurischiformes (in part) ...... 4 Allosauridae (=3D Carnosauria) 5A Ornitholestidae (possibly paraphyletic) B Compsognathidae 6 Tyrannosauridae ? Coeluridae 7 Ornithomimidae 8 Therizinosauridae 9 Caudipter(yg)idae _a_ Oviraptoridae 10A Alvarezsauridae B Avimimidae 11 Troodontidae 12 Dromaeosauridae (=3D Deinonychosauria) 13 Plesion _Rahonavis_ 14 {{Aves}} ****************************************** NOTES: For those of you who recognize a single clade for Therizinosauridae, Caudipteridae, and Oviraptoridae---- you would simply change the 9 to 8B (and then renumber = 10-14 to 9-13). The capital letters indicate subclades (the main clades are numbered in the order they split off). The coding symbol _a_ shows that= Oviraptoridae is an exgroup from Caudipteridae. You could combine them i= nto an expanded holophyletic Oviraptoridae, but I wouldn't recommend this (be= cause it could become doubly paraphyletic if the cladograms change significantl= y). = Also note that I only put in one plesion, but others may be added when th= e classification is completed. And the {{Aves}} marker shows the cladistic= placement of the exgroup Class Aves. Sister group "nesting" is not sacri= ficed as in traditional eclectic classifications. = ____________________________________________________________________ Get free email and a permanent address at http://www.netaddress.com/?N=3D= 1