What happened once early clan families became larger, more extended groups?

They formed into a unit of community or village.

Explanation:

Once early clan families became larger, more extended groups, they formed into a unit of community or village. These extended clan families formed their own local community and villages and interestingly, the villagers shared the same descent.Often the villages also interacted with other villages and inter-marriage among different villages started to take place. It led to the growth of varied and mixed generations.

Texas’ gulf coastal plains are the western extension of the coastal plain extending from the atlantic ocean to beyond the rio grande. its characteristic rolling to hilly surface covered with a heavy growth of pine and hardwoods extends into east texas. in the increasingly arid west, however, its forests become secondary in nature, consisting largely of post oaks and, farther west, prairies and brushlands.