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Origin of Amphibia
Example sentences from the Web for amphibia
These are extinct Amphibia with a greatly developed dermal exoskeleton, which is generally limited to the ventral surface.The Vertebrate Skeleton|Sidney H. Reynolds
No bone of this animal shows the deep pitting and heavy ornamentation characteristic of many primitive Amphibia.A New Order of Fishlike Amphibia From the Pennsylvanian of Kansas|Theodore H. Eaton
The difference in the development of the segmental duct in the two types (Amphibia and Elasmobranchii) is very important.
In Amphibia the single late formed and radiately striated (Waldeyer) membrane would appear to be a zona radiata.
At first sight the differences between their development and that of Amphibia would appear to be very great.The Works of Francis Maitland Balfour, Volume III (of 4)|Francis Maitland Balfour