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. 2009 Apr 6;106(16):6561–6566. doi: 10.1073/pnas.0901846106

Fig. 2.

Fig. 2.

Unit X block excavation at the Riverton site showing the location of house floors, hearths, and features. Species listed for each feature are from ref. 15 (seed counts listed, nut species listed if present). (Feature 1) Midden deposit: 100 “bony” chenopod, 5 carbonized chenopod, 1 cf. Hordeum sp., 4 elderberry, butternut, walnut, hickory, bitternut hickory, hazelnut, acorn. (Feature 1B) Nutshell concentration (3820 cal B.P.): 207 “bony” chenopod, 4 carbonized chenopod, 2 elderberry, butternut, walnut, hickory, hazelnut. (Feature 4) Midden deposit: 1 carbonized chenopod, walnut, hickory, bitternut hickory, hazelnut, acorn. (Feature 6) Midden deposit: 3 carbonized chenopod, walnut, hickory. (Feature 6A) Midden deposit: 200 “bony” chenopod. (Feature 8) Midden deposit: 1 walnut, hickory. (Feature 8A) Nutshell concentration (3690 cal B.P.): 23 carbonized chenopod, 1 sunflower seed, 11 polygonum, 1 persimmon, 2 Cucurbita rind fragments, butternut, walnut, hickory, bitternut hickory, acorn. (Feature 11) Oval storage pit: bitternut hickory. (Feature 13A) Small pit filled with charred nutshell (3810 cal B.P.): 30 “bony” chenopod, 3 Cucurbita rind fragments, butternut, walnut, hickory, bitternut hickory, acorn. (Feature 15) Burned sandstone concentration: 2 “bony” chenopod, 4 carbonized chenopod, bottle gourd rind fragment, butternut, walnut, hickory, bitternut hickory, hazelnut, acorn. (Feature 16) Midden deposit: 2 “bony” chenopod, butternut, walnut, hickory, bitternut hickory. (Feature 18) Burned sandstone concentration: hickory. (Feature 25N) Midden deposit: 4 carbonized chenopod, 1 persimmon, walnut, hickory, bitternut hickory, acorn. (Feature 29) Circular pit filled with fine gray ash (3620 cal B.P.): 8 carbonized chenopod, carbonized marshelder seeds, hickory, acorn. (Feature 32) Midden deposit: 3 carbonized chenopod, walnut, hickory, bitternut hickory, hazelnut, acorn.