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Fig. 5 Pre-Clovis projectile points from the Debra L

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1 Fig. 5 Pre-Clovis projectile points from the Debra L
Fig. 5 Pre-Clovis projectile points from the Debra L. Friedkin site and other sites in North America. Pre-Clovis projectile points from the Debra L. Friedkin site and other sites in North America. (A) Triangular lanceolate point (AM9811-1), (B) lanceolate stemmed point (AM9875-2), (C) lanceolate stemmed point midsection with base and blade sections (AM ), (D) lanceolate stemmed point midsection with base and blade sections (AM6233-1), (E) lanceolate stemmed point midsection with base and blade sections (AM ), (F) point tip (AM4668-6), (G) lanceolate stemmed point base (AM ), (H) point midsection (AM4819-7), (I) beveled point tip (AM ), (J) beveled point tip (AM8380-3), (K) beveled point tip midsection (AM ), and (L) point tip (AM ). (M) Point from Iztapan Mammoth II, Mexico [from (29)], (N) point from Iztapan Mammoth II, Mexico [from (29)], (O) point from Iztapan Mammoth I, Mexico [from (29)], and (P) Miller point from Meadowcroft Rockshelter, Pennsylvania. Michael R. Waters et al. Sci Adv 2018;4:eaat4505 Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).


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