The large animals gradually became extinct as the glaciers melted, the climate grew warmer, and the plant life changed. The native Louisianians were forced by necessity to hunt smaller animals and to supplement their diet with shellfish. The people of the Archaic Period moved from place to place leaving behind huge mounds of discarded shells which eventually increased the elevation of area and reduced flooding. During this period they developed such tools as spear—throwers, knives, scrapers, drills, and darts.
Poverty Point Period (1700-200 BC):
In northeastern Louisiana, near Epps, is an ancient village site called Poverty Point. It contains a unique bird effigy mound and a large geometrical village. Houses of palmetto were built on ridges of earth arranged in an octagon east of the 600 foot long and 70 foot high bird mound.
Since they did not have clay pottery, food was cooked by placing it in an earthen pit lined with hot baked clay balls. Tools, called micro-flints, were made from stone slivers to open shellfish, nuts, and seeds.
There are also indications of developing trade with other areas.
Tchefuncte Period (200 BC-400 AD):
In coastal Louisiana much of the old Archaic tradition of shellfish gathering, augmented by hunting, continued long after the Poverty Point culture was 1,000 years old. About 200 BC crude pottery was added to the basic Archaic Culture on the coast and around Lake Ponchartrain. They continued to eat shellfish, supplemented with small game and wild plants. They lived on shell middens in circular houses made from poles and thatch.
Marksville Period (100-550 AD):
The development of agriculture during this period freed the early Louisianians from daily hunting and food gathering which allowed them time for more religious and recreational activities. They began making fine pottery and flint projectile points for ceremonial and burial purposes rather than for purely utilitarian uses.
They continued building earthen mounds and added rather elaborate burial practices by placing the deceased in the mound with pottery and recreational items such as chunkey stones. Some of these burial artifacts were made from materials from as far away as Yellowstone Park and marine shells from the Gulf. Their artifacts included copper items.