Reviewing these images is a long process if you go through the whole set. The idea is to notice all the differences and variability seen within each age. Then, as the age becomes greater, notice the increased variability. Also, note that some horses’ left and right sides are different, yielding a different age. The difference is caused by the horse’s tongue movement, jaw movement or both. The image data is the evidence I give for the horse’s age.
I call this group between 6 and 12 years the “Young Adult Horses.”
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⬇︎ Click or tap on any image to fully open it. Swipe or click the arrow to move through the gallery. ⬇︎
6-year-olds
Cups are evident on the occlusal surface of all lower incisors by 5 years of age. The cups start to disappear on the lower central incisors (301 and 401) during their 6th year. “Central cups are gone at 6.”
3/3/2008 = 06yr 3mo WB G 3/3/2008 = 06yr 3mo WB G 3/3/2008 = 06yr 3mo WB G 3/3/2008 = 06yr 3mo WB G 5/9/2008 = 06yr 1mo WB G 5/9/2008 = 06yr 1mo WB G 5/9/2008 = 06yr 1mo WB G 5/9/2008 = 06yr 1mo WB G 4/12/2008 = 06yr Belgian WB G 4/12/2008 = 06yr Belgian WB G 4/12/2008 = 06yr Belgian WB G 4/12/2008 = 06yr Belgian WB G 5/24/2007 = 06yr 5mo WB M 5/24/2007 = 06yr 5mo WB M 5/24/2007 = 06yr 5mo WB M – Horse M – Abnormally shaped #303 5/24/2007 = 06yr 5mo WB M Feb 14, 2007 = 06yr 6mo Appaloosa G Feb 14, 2007 = 06yr 6mo Appaloosa G Feb 14, 2007 = 06yr 6mo Appaloosa G Feb 14, 2007 = 06yr 6mo Appaloosa G 2007= 06yr Hanovarian M 2007= 06yr Hanovarian M 2007= 06yr Hanovarian M 2007= 06yr Hanovarian M 5/25/2007 = K = 06yr 2mo TB G 5/25/2007 = K = 06yr 2mo TB G 5/25/2007 = K = 06yr 2mo TB G 5/25/2007 = K = 06yr 2mo TB G 5/25/2007 = 06yr 2mo Trote y Galope G 5/25/2007 = 06yr 2mo Trote y Galope G 5/25/2007 = 06yr 2mo Trote y Galope G 5/25/2007 = 06yr 2mo Trote y Galope G 5/5/2007 = 06yr G WB 5/5/2007 = 06yr G WB 5/5/2007 = 06yr G WB 5/5/2007 = 06yr G WB
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7-year-olds
Cups are evident on the occlusal surface of all lower incisors by 5 years of age. The cups start to disappear on the lower middle incisors (302 and 402) during their 7th year. “Middle cups are gone at 7.”
4/25/2007 = 07yr old Gypsy Vanner mare – note the 305 canine in this dominant mare 4/25/2007 = 07yr old Gypsy Vanner mare 4/25/2007 = 07yr old Gypsy Vanner mare – note the 305 canine in this dominant mare 4/25/2007 = 07yr old Gypsy Vanner mare 4/29/2007 = 07yr Tattoo = K TB G (just castrated) 4/29/2007 = 07yr Tattoo = K TB G (just castrated) 4/29/2007 = 07yr Tattoo = K TB G (just castrated) 4/29/2007 = 07yr Tattoo = K TB G (just castrated) 2/18/2006 = 07yr 7 mo 2/18/2006 = 07yr 7 mo 2/18/2006 = 07yr 7 mo 7yr 2/18/2006 = 07yr 7 mo Feb 26, 2006 = 07yr 6mo TB G tattoo = J Feb 26, 2006 = 07yr 6mo TB G tattoo = J Feb 26, 2006 = 07yr 6mo TB G tattoo = J Feb 26, 2006 = 07yr 6mo TB G tattoo = J 2006 = 07yr tattoo = J TB G 2006 = 07yr tattoo = J TB G 2006 = 07yr tattoo = J TB G 2006 = 07yr tattoo = J TB G 4/26/2006 = 07yr 4mo 4/26/2006 = 07yr 4mo 4/26/2006 = 07yr 4mo 4/26/2006 = 07yr 4mo 2/9/2006 = 07yr 5mo TB M 2/9/2006 = 07yr 5mo TB M 2/9/2006 = 07yr 5mo TB M 2/9/2006 = 07yr 5mo TB M 6/2/2006 = 07yr 1mo WB G 6/2/2006 = 07yr 1mo WB G 6/2/2006 = 07yr 1mo WB G 6/2/2006 = 07yr 1mo WB G 10/7/2006 = 07yr 10/7/2006 = 07yr 10/7/2006 = 07yr 10/7/2006 = 07yr
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8-year-olds
Cups are evident on the occlusal surface of all lower incisors by 5 years of age. The cups start to disappear on the corner middle incisors (303 and 403) during their 8th year. “Corner cups are gone at 9” or “All cups gone at 9.”
2/15/2006 = 8 yr old WB G 2/15/2006 = 8 yr old WB G 2/15/2006 = 8 yr old WB G 2/15/2006 = 8 yr old WB G 10/23/2006 = 08yr WB G (born in Argentina) 10/23/2006 = 08yr WB G (born in Argentina) 10/23/2006 = 08yr WB G (born in Argentina) 10/23/2006 = 08yr WB G (born in Argentina) 5/21/2006 = 08yr 1mo WB G 5/21/2006 = 08yr 1mo WB G 5/21/2006 = 08yr 1mo WB G 5/21/2006 = 08yr 1mo WB G 5/13/2006 = 08yr 0 mo QH mare 5/13/2006 = 08yr 0 mo QH mare 5/13/2006 = 08yr 0 mo QH mare 5/13/2006 = 08yr 0 mo QH mare 4/12/2006 = 08yr TB G who cribs. Tattoo = J 4/12/2006 = 08yr TB G who cribs. Tattoo = J 4/12/2006 = 08yr TB G who cribs. Tattoo = J 4/12/2006 = 08yr TB G who cribs. Tattoo = J 4/15 2005 = 08yr 4mo tattoo = I TB G 4/15 2005 = 08yr 4mo tattoo = I TB G 4/15 2005 = 08yr 4mo tattoo = I TB G 4/15 2005 = 08yr 4mo tattoo = I TB G 8yr 4/16/2005 = 08yr 4mo WB M 4/16/2005 = 08yr 4mo WB M 4/16/2005 = 08yr 4mo WB M 4/16/2005 = 08yr 4mo WB M 7/3/2005 = 08yr 0mo Rocky Mountain Horse mare 7/3/2005 = 08yr 0mo Rocky Mountain Horse mare 7/3/2005 = 08yr 0mo Rocky Mountain Horse mare 8yr 7/3/2005 = 08yr 0mo Rocky Mountain Horse mare 5/28/2005 = 08yr Hackney G 5/28/2005 = 08yr Hackney G 5/28/2005 = 08yr Hackney G 5/28/2005 = 08yr Hackney G 4/15/2005 = 08yr TB G Tattoo I = 2005 4/15/2005 = 08yr TB G Tattoo I = 2005 4/15/2005 = 08yr TB G Tattoo I = 2005 4/15/2005 = 08yr TB G Tattoo I = 2005
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9-year-olds
Same as 8 year old
3/11/2005 =09yr 2mo TB G Tattoo = I 3/11/2005 =09yr 2mo TB G Tattoo = I 3/11/2005 =09yr 2mo TB G Tattoo = I 3/11/2005 =09yr 2mo TB G Tattoo = I 4/15/2005 09yr 1mo Oldenburg G 4/15/2005 09yr 1mo Oldenburg G 4/15/2005 09yr 1mo Oldenburg G 4/15/2005 09yr 1mo Oldenburg G 4/24/2005 = 09yr WB G 4/24/2005 = 09yr WB G 4/24/2005 = 09yr WB G 4/24/2005 = 09yr WB G 2/18/2004 = 09yr 9mo – Zangershire G 9yr 2/18/2004 = 09yr 9mo – Zangershire G 2/18/2004 = 09yr 9mo – Zangershire G 2/18/2004 = 09yr 9mo – Zangershire G 5/13/2004 = 09yr 4mo 5/13/2004 = 09yr 4mo 5/13/2004 = 09yr 4mo 5/13/2004 = 09yr 4mo 5/15/2004 = 09yr 3mo M 5/15/2004 = 09yr 3mo M 5/15/2004 = 09yr 3mo M 5/15/2004 = 09yr 3mo M 5/3/2004 = 09yr tattoo = H TB G 5/3/2004 = 09yr tattoo = H TB G 5/3/2004 = 09yr tattoo = H TB G 5/3/2004 = 09yr tattoo = H TB G 2/27/2004 = 09yr 3mo WB G 2/27/2004 = 09yr 3mo WB G 2/27/2004 = 09yr 3mo WB G 2/27/2004 = 09yr 3mo WB G 3/19/2004 = 09yr QH G 3/19/2004 = 09yr QH G 3/19/2004 = 09yr QH G 3/19/2004 = 09yr QH G
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10-year-olds
“Galvayne’s groove” is an indentation (or groove) that occurs on the upper corner incisors (103 and 203). It is located on the labial surface and parallels the front and back edge of the tooth. Between 10 and 20 years, it will progressively extend the length of the tooth. Between 21 and 30 years, it will progressively disappear, starting at the gum line until it is gone by 30. It is first seen as a slight indentation at the gum line appearing as the tooth gets to the 10th year of eruption.
Ollie 10yr Paint G Ollie 10yr Paint G Ollie 10yr Paint G Ollie 10yr Paint G 5/20/2004 = 10yr WB G 5/20/2004 = 10yr WB G 5/20/2004 = 10yr WB G 5/20/2004 = 10yr WB G 5/15/2004 = 10yr Morgan M 5/15/2004 = 10yr Morgan M – note the labial ware due to rubbing her 102 on the metal bars for more hay. 5/15/2004 = 10yr Morgan M 5/15/2004 = 10yr Morgan M 2003 = 10yr tattoo = G TB M 2003 = 10yr tattoo = G TB M 2003 = 10yr tattoo = G TB M 2003 = 10yr tattoo = G TB M 7/12/2003 = 10yr 1mo Fresian G 7/12/2003 = 10yr 1mo Fresian G 7/12/2003 = 10yr 1mo Fresian G 7/12/2003 = 10yr 1mo Fresian G 2/18/2003 = 10yr 6mo QH G – lower incisors are in a straight line 2/18/2003 = 10yr 6mo QH G – lower incisors are in a straight line 2/18/2003 = 10yr 6mo QH G – lower incisors are in a straight line 
