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Megalodon
Shark Tooth Collector's Guide.
I am often asked what to look for when buying a tooth?
Since the Megalodon tooth is the most collected fossil, this guide
includes information on what collectors look for when purchasing one.
Collectors look for different things when shopping for teeth, including
condition, size, price, restoration, shape, color and .
CONDITION!!!
The
condition of the enamel, bourrelet, serrations, tip, and root will add
or detract from the value of the tooth.
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Enamel. Smooth enamel is an Important feature of Meg
teeth. The enamel on the tooth on the left is peeled, while the
tooth on the right has smooth enamel |
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Root
A complete and perfect root separates a nice tooth from an exceptional
tooth. This tooth has nubs on each side which is a rare feature
in Megalodon Teeth. |
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bourrelet is the thin triangular band of enamel between the
blade and the root. Because the bourrelet is so thin, very few teeth
have a full bourrelet |
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Serrations.
One thing that amazes collectors is that millions of years later,
these sharp and delicate serrations remain as sharp as the blade
on a knife.
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SIZE
!!!
The
size of a Megalodon tooth is measured I different ways. When people
give the size of a tooth in inches, they are generally referring to
the diagonal length of the tooth. Another important determination
of the size of the tooth is its weight.
Diagonal
Length
The
diagonal length Is determined by measuring from the tip of the blade
to the corner of the root. When someone tells you that they have a 5"
tooth they are saying that the diagonal length of the longer size is
5". When purchasing a tooth, people usually would like to know the length
of both sides of the tooth. This is why you usually see references to
two lengths when people are selling a tooth. L1 is the length of the
longer side and L2 is the length of the shorter tooth.
The
white line in the picture represents the length of the longer
side (L1) while the darker gray line represents the length of
the shorter side (L2). |
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When
purchasing a tooth be aware what the person describing the tooth used
to measure it. The length cannot be accurately determined by using a
ruler. A caliper measures lengths to 1/1000 of an inch. Some dealers
give an approximate measurement. This is fine until you find that your
6" tooth is only 5.95". This may not seem like much of a difference,
but it can sometimes mean that the tooth is not as valuable. The difference
in value between a 5.95" tooth and a 6" tooth can easily be hundreds
of dollars.
Always
be suspicious when someone trying to sell a tooth tells you that a tooth
is 5" or 5-1/2" exactly. This is a sign that they eyeballed the length
with a ruler and it is probably not accurate. The tooth may measure
5.47", but they round it to 5-1/2" hoping to get more money than the
tooth is worth.
We always measure with a caliper and show the exact measurement
to 1/100 of an inch.
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Appearances
Can be Deceiving.
This
tooth looks like it measures close to 5",
but at 4.72" the actual measurement is less than 4-3/4". |
Weight
Just looking at the length of a tooth is not enough. The weight of a
tooth adds to its overall effect as much as the length does. Two teeth
with the same diagonal length can have very different weights. Similarly,
the weight of a tooth usually increases greatly with length. An average
5" tooth is not just an inch longer than an average 4" tooth. It can
weigh more than twice as much as the 4" tooth. In addition, the value
of similar teeth increases greatly with size.
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The
picture above shows a 3" tooth, 4" tooth, 5" tooth and 6-1/8"
tooth side by side. It is clear that there is more to the size
difference than simply a 1" difference in length from tooth to
tooth. They weigh 2.5oz. 4oz. 7oz. and 15 oz. respectively |
Price!!!
The
hardest thing about selling Meg teeth is determaning the price. Every
tooth is different. Decide what you want in a tooth, look around and
ask questions. It is hard to show what a tooth is really like in a few
pictures. Call the seller on the phone and get their assessment of the
tooth. See if it is what you really want. Don't settle for second best.
RESTORATION !!!
When looking for an investment grade tooth, be sure that the tooth has
not been repaired, restored or altered. Again, ask the seller
questions. Does he know the history of the tooth? Some people are artists
and can make alterations that are virtually undetectable. They will
add back peeled enamel, a missing root corner or a chipped off tip.These
teeth are fine if you are looking for a $50 showpiece or an impressive
inexpensive gift.
If
you are looking for an investment grade tooth that will cost hundreds
of dollars, or more, make sure it is unaltered. There are only two ways
to be sure that you are getting an unaltered tooth. The first and most
practical way is to get it from a trusted source. The only other way
to be sure that your tooth has not been restored is to find it yourself.
SHAPE !!!
Some people prefer teeth that have a certain
shape. Just like with human teeth, the shape of a shark tooth is determined
by the tooth's jaw position. A tooth in the front of the jaw differs
in shape from a tooth towards the back of the jaw. A tooth in the upper
jaw differs in shape from a tooth in the lower jaw.
The
Megalodon had hundreds of teeth in its massive mouth.There were up to
four rows each of upper and lower teeth. These rows were stacked behind
one another.When a shark shed a tooth, it had plenty of other teeth
to assist it in eating. Each row could contain as many as 30 teeth at
one time.
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Upper
Teeth.
Teeth in the upper jaw are wider than lower teeth. |
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Lower
Teeth.
The lower teeth tend to be narrower than upper teeth.They have
a dagger-like shape and the root has a deep V shape |
The types of teeth
are divided into three categories, They are Anterior, Posterior and
Lateral.
Anterior
teeth
The
teeth in the very front of the Meg's mouth are anterior teeth.These
teeth are wider and longer and have a symmetrical shape.
Many
people collect anterior teeth because of their shape and size.
Many of the larger teeth are anterior teeth. |
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Posterior Teeth
Teeth
in the very back of the Megalodon's mouth are called posterior
teeth and are short wide.This picture shows a pair of posterior
teeth, one upper and one lower.
These
are a favorite of many collectors because of their unusual shape. |
Lateral
Teeth
These
teeth sit between the anterior and posterior teeth. They are thinner
than anterior teeth and have a curve or hook.
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The picture
above shows part of a row of Megalodon teeth. A full row of teeth
would not fit on this 64" stand. |
COLOR
!!!
Some
people ask if you can determine the age of a tooth by the color. The
answer is that you cannot. The sediment in which it was buried while
fossilizing, not the age of the tooth, determines the tooth's color.
As the tooth decayed, it absorbed the minerals around it which helped
to determine the tooth's color.
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The enamel can come in several colors. Some collectors prefer one
color over another. The teeth above have brown, gray and black enamel. |
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