How do we know dinosaurs were reptiles?

How Can We Know That Dinosaurs Were Reptiles? For amateur dinosaur lovers out there, there are many questions that come to mind when contemplating the existence of these giant extinct beasts. One such question revolves around the assertion that dinosaurs were reptiles. read more

If we were to follow a strict cladistic definition, then "Reptilia" would probably include mammals, dinosaurs, and birds as well as all the things we think of as "reptiles", because each of those groups descended from reptiles (I am simplifying, remember). read more

For amateur dinosaur lovers out there, there are many questions that come to mind when contemplating the existence of these giant extinct beasts. One such question revolves around the assertion that dinosaurs were reptiles. read more

Like dinosaurs, some animals alive today like the great white shark, leatherback sea turtle and tuna do not fit easily into either category, Grady added. 'A better answer would be 'in the middle.' By examining animal growth and rates of energy use, we were able to reconstruct a metabolic continuum, and place dinosaurs along that continuum. read more