Paracas lacked a central figurehead or government, and were instead composed of local chiefdoms. These communities were joined by shared religion and trade, but maintained economic and political autonomy. Early Paracas communities were within the
Chavín sphere of interaction and formed their own versions of the cult. Though one of the smaller sites in the valley, it has still been subject to intensive research and is useful for understanding the political evolution of Paracas. The site is composed of a monumental
platform mound with two sunken courts surrounded by agricultural fields. In contrast, there are abundant Paracas remains in the Ica, Pisco, and Chincha valleys, as well as the Bahía de la Independencia. He noted that the southern Nazca region, which became the most populous region of its culture, was never an important area of Paracas occupation. He believes that initial settlement of the region by Paracas populations and subsequent population growth mark the beginning of Nazca society. Many Paracas sites were later inhabited by the Topará tradition, and the decline of the Paracas culture is often thought to be associated with the "invasion" of the Topará culture the north at approximately 150 BCE. This is largely based on Topará-style ceramics found at late Paracas and initial Nazca sites. However, this theory has recently been called into question; the termination ritual at Cerro del Gentil and other Chincha Valley sites precedes any Topará occupation, and the sites show no sign of resistance to an invading culture. Radiocarbon dates show that the earliest accepted Topará site, Jahuay, was first occupied ~165 years after the closure of Cerro del Gentil. This suggests that the decline of Paracas and the Paracas-Nazca transition was already underway when the Topará tradition emerged. == Ceramics ==