Answer:
What animal are dinosaurs most closely related to?
reptiles. Dinosaurs are part of the reptile group, and they're loosely related to all kinds of reptiles, including lizards, snakes, crocodiles, and turtles. After birds, crocodiles are the most closely related to dinosaurs.
What organisms are crocodiles most closely related to?
Crocodilians are actually more closely related to birds and dinosaurs than they are to other reptiles, i.e., lizards, snakes, and turtles.
What is a common ancestor of crocodiles and turtles?
Turtles, have been found to be the closest relatives of crocodiles and alligators, according to an analysis of the largest available collection of reptile genes. ... "The results provide strong evidence that the turtle is the crocodile's closest living relative
What is a common ancestor of mammals and turtles
Both mammals and turles are vertebrates. Both of them are descendants of the amniotes, the first reptilian like creature to lay an amniotic egg. After that, the amniotes split into sauropsids which lead to reptiles, birds, turtles, dinosaurs etc and synapsids which led to us and all the rest of the mammals. So this last common ancestral amniote before the split into sauropsid and synapsids happened is the common ancestor. Need to go back more than around 300 million years ago to meet it in the carboniferous epoch.