Origin of carinate
Examples from the Web for carinate
It must have been that of the struthious birds or that of the carinate birds, or something different from both.
Calyx 5- (rarely 6-) parted; its lobes long-acuminate, with carinate midrib.
If it was that of the carinate birds, how did the struthious birds and Dinosauria independently agree to differ?
Carinate, keeled, furnished with a sharp ridge or projection on the lower side.The Elements of Botany|Asa Gray
All other existing birds belong to the second division, and are called (from the keel on the breast-bone) carinate birds.