Engineering:Simpson point
From HandWiki
The Simpson point is a Paleo-Indian projectile point with a wide blade noted for exhibiting a narrowed 'waist' (middle section). It also features a concave base and eared basal corners. It was named in 1962 by Ripley P. Bullen. Points are mostly dated to 9000BC [1] and are considered to be a typical example of the Middle Paleo-Indian subperiod (9000-8500 BC).[2]
References
- ↑ Hranicky, William J. (2010). North American Projectile Points (revised ed.). AuthorHouse. p. 393. ISBN 978-1-4520-2632-9. https://books.google.com/books?id=ctw4OPNR540C&pg=PA393.
- ↑ Ward, H. Trawick; Davis, R. P. Stephen (1999), Time before history: the archaeology of North Carolina, UNC Press Books, p. 31, ISBN 978-0-8078-4780-0, https://books.google.com/books?id=0vVOdOSIv_cC
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