Meanings of same stratum in English

The shelf on the left belonged to the same stratum.

At the lower levels we meet the same stratum of phosphorescent rock that illuminates Omean.

Further, they are not a case of convergence, since their ancestry is not divergent but leads into the same stratum.

Nor would such an inference follow even from the occurrence of the remains in distant parts of the very same stratum.

We again find ourselves back in the same stratum of tradition with which the Hebrew narratives have made us so familiar.

This principle would imply that the same stratum of lizards always had variations ready to fit any changed environment, forests and deserts, rocks and swamps.