carinatae造句

• Beginning in the 1980s, Carinatae was given several phylogenetic definitions.
• The current definition of Carinatae now includes all extant birds.
• He rejected the Ratitae-Carinatae classification that separated tinamous and ratites.
• I looked at Carinatae which still claims that the turkey has no carina.
• An alternate definition was provided in 2001, naming Carinatae an apomorphy-based clade defined by the presence of a keeled sternum.
• Huxley still placed the tinamous with the Carinatae of Merrem because of their keeled sterna, and thought that they were most closely related to the Galliformes.
• Although the wings and breastbone were very modern in appearance ( suggesting strong flight ability and placing it with modern birds in the advanced group Carinatae ), the jaws had numerous small, sharp teeth.
• "' Carinatae "'is the group of all birds and their extinct relatives to possess a keel, or " carina ", on the underside of the breastbone used to anchor large flight muscles.
• Historically, the presence or absence of a pronounced keel structure was used as a broad classification of birds into two orders : Carinatae ( from " carina ", " keel " ), having a pronounced keel; and ratites ( from " ratis ", " raft " & mdash; referring to the flatness of the sternum ), having a subtle keel structure or lacking one entirely.