2) (including the Guiana uplands, Evans and Meggers, 1960: Plate 8, contra Hammond et al., 2007). Their habitat was humid tropical rainforest, not savanna, according to pollen, phytoliths, stable carbon isotopes, and macrobotanical studies C59 wnt ic50 (Gnecco and Mora, 1997 and Mora, 2003:109–129; Roosevelt, 2000:468–471, 480–481; Roosevelt et al., 1996 and Roosevelt et al., 2002: 182–183, 189–203). Grasses are virtually absent from the ancient living sites. Subsistence was based primarily on cocosoid palm and small fish, supplemented with tree legume pods, tree fruits and nuts, and, where faunal remains were preserved in

Brazilian sites, medium-size fish, shellfish (Unionidae), turtles, tortoises, and medium-sized rodents. Mammals, otherwise, were very rare in their sites, and megafauna,

totally absent. Most of the fish were small catfish, chichlids, and characins, Fluorouracil in vitro but there also were piranhas and Hoplias malabaricus and a few very large fish, such as pirarucu (Arapaima gigas), a meter to 3 m long, the meter-long aruana (Osteoglossum bicirrhosum), and meter-long large catfish. All of the plant and animal species in Paleoindian sites still live in Amazonia. The early Amazonians put a distinctive esthetic stamp over a wide area by decorating rock outcrops with thousands of large, painted designs that are visible from low-flying aircraft (Fig. 3) (Davis, 2009, Roosevelt, 1999b and Roosevelt et al., 1996). According to 10 radiocarbon and 5 luminescence dates associated with abundant pigment at two sites, the artwork began early in their occupation, dated between 13,000 and 11,500 years Adenosine cal BP. by over 70 radiometric dates. This widespread monumental polychrome art was both a cultural marker and an astronomical

observation system linked to environmental cycles (Davis, 2009 and Davis, 2014). In many places where suitable bedrock is exposed in greater Amazonia, similar artworks are found (e.g., Pereira, 2003). At the same time Paleoindians arrived, forest disturbance species more than double from pre-human levels in the Amazon mouth paleoecological record (Haberle, 1997). The food and ecofactual remains in Paleoindian sites, described below, also suggest people may have altered the forests, cutting, burning, selecting, and possibly planting fruit trees, shrubs, and herbs they found edible or useful. Part-time foragers in the northwest Amazon today have measurable effects on forest composition from their treks (Politis, 2007: 240–246, 278–290, 333–335). At camps, they cut wood and discard seeds, which sprout into palm groves after they leave.