The following typology has been largely, although not entirely, adapted from William A. Ritchie's (1971) Typology and Nomenclature for New York Projectile Points.  This work is a classic reference for point styles from New York and it is largely applicable to the Northeast region of the U.S. and Southern Ontario as a whole.
    Use the links to any of the point styles found below to see a digital images of artifacts that exemplify the type and to read a brief description of their most prominent morphological attributes.  The representative artifact examples are authentic and, unless otherwise noted, are from my own personal collection. In some cases, where rarity and quality were significant factors, casts were used to provide the best representation of certain projectile point types. For organizational purposes the point styles are listed from the oldest cultural period to the most recent.  

PALEO  12,000 - 10,000 BC
      Debert Clovis
      Barnes
TRANSITIONAL PALEO  10,000 - 7,000 BC
      Crowfield
    Agate Basin
      Hi-Lo
EARLY ARCHAIC  8,000 - 5,000 BC
MIDDLE ARCHAIC  5,000 - 2,000 BC
    Vosburg
    Otter creek
    Brewerton Side-Notched
    Brewerton Corner-Notched
    Lamoka
    Normanskill
    Brewerton Eared-Notched
    Brewerton Eared-Triangle
    Genesee
TRANSITIONAL AND LATE ARCHAIC  2,000 - 1,000 BC
    Snook Kill
    Poplar Island
    Bare Island
    Rossville
    Perkiomen Broad
    Susquehanna Broad
    Orient Fishtail
    Steubenville Stemmed
    Steubenville Lanceolate
EARLY WOODLAND  1,000 BC - 100 BC
    Meadowood
    Fulton Turkey Tail
    Adena
MIDDLE WOODLAND  100 BC - 900 AD
    Snyders
    Jack's Reef Corner-Notched
    Jack's Reef Pentagonal
    Port Maitland
LATE WOODLAND  500 - 1,500 AD
    Levanna
    Madison