And because not every rock can be dated radiometrically, relative dating with fossils continues—and in fact, it predominates—today. “All of us are using the Principle of Faunal Succession,” she says.

Faunal succession means that fossil species succeed one another in a definite and recognizable order. For example fossils in older rock show increasingly greater differences from plant and animal ...

principle of faunal succession: Fossil species succeed each other in a definitive, recognizable order and once a species goes extinct, it disappears and cannot reappear in younger rocks.

Today, it is called the "principle of faunal succession", and this idea holds that because fossils succeed one another in order, rocks containing similar fossils are similar in age. This principle ...

The new fossils are identified as a spiral-horned antelope named Prostrepsiceros cf. vinayaki. ... Mio-Pliocene faunal exchanges and African biogeography: The record of fossil bovids ...

One persistent mystery involves our own clade, eutherian mammals. Though many fossil eutherians are known from the Cretaceous, only a single small clade is known from South Asia, and none at all from ...

Discovering Faunal Succession. When Smith was little, fossil brachiopods may have been nothing more than marbles, and he might have forgotten fossils altogether had he lived at a different time. But ...

principle of faunal succession: Fossil species succeed each other in a definitive, recognizable order and once a species goes extinct, it disappears and cannot reappear in younger rocks.

Though many fossil eutherians are known from the Cretaceous, only a single small clade is known from South Asia, and none at all from other Gondwanan regions. In contrast, they achieve a global ...