
Odontornithes is an obsolete and disused taxonomic term proposed by O. C. Marsh for birds possessing teeth, notably the genera Hesperornis and Ichthyornis from the Cretaceous deposits of Kansas. In 1875 March divided this `subclass` into Odontolcae, with the teeth standing in grooves, and Odontotormae, with the teeth in separate alveoles or sock.....
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http://en.wikipedia.org/wiki/Odontornithes

• (n. pl.) A group of Mesozoic birds having the jaws armed with teeth, as in most other vertebrates. They have been divided into three orders: Odontolcae, Odontotormae, and Saururae.
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http://thinkexist.com/dictionary/meaning/odontornithes/
O·don`tor·ni·'thes noun plural [ New Latin , from Greek
'odoy`s ,
'odo`ntos , a tooth + ..., ..., a bird.]
(Paleon.) A group of Mesozoic birds having the jaws armed with teeth, as in most other vertebrates. They have been divided into three orders: Odontolcæ, Odont...
Found on
http://www.encyclo.co.uk/webster/O/12
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