Fossils of
the Bay
We strongly recommend that you visit the Calvert Marine Museum located in Solomons
Island, just 14 miles south of our home. You will discover a wealth of
information about the fossils you will find on our cliffs at the Museum.
Fossils
are the remains of ancient life, which are preserved for millions of
years.
They can be found potentially everywhere. In someone’s backyard, on a
beach shoreline
or high up in the Rocky Mountains - all the same they are still fossils.
Fossils found along the Chesapeake Bay and on our beach are mostly from
the
Miocene era, (19 to 24 million years ago). These fossils are much
younger than
the dinosaurs, which became extinct sixty million years age. They are
much
older than man who first walked the Earth a couple of million years ago.
There
have been over 400 shells identified in the Calvert Cliff formations
located
directly near our property on the Bay. Of those 400, only 44 percent
still live
in the Chesapeake Bay. The scallop shell is one of the oldest and most
decorative shells found along the shoreline of the Bay. These shells can
vary
in size between the smallest compared to the size of a dime; to some of
the
largest being 10 inches long. Your children will have a great time
painting them and they will become part of your treasured memories.
Shark Teeth
From the Marko Shark to
the silky Shark, the shoreline of
the Chesapeake Bay is filled with all different kinds of shark’s teeth.
Fossil
records indicate that some of the first sharks lived some 300 million
years
ago. It is estimated that modern sharks had evolved between 70 million
to 100
million years ago. Sharks are known for their speed and maneuverability
in the
water. Most species can swim at speeds of 20 to 30 (32 to 48 kilometers)
miles
per hour, and the speed of the Marko has been recorded at more than 60
(97
kilometers) miles per hour. Sharks are among the oldest living water
creatures,
and they have remained essentially the same since the modern sharks
first
appeared.
Shark teeth are among
the hardest of all organic materials,
highly resistant to destruction by weather or wave action. Therefore you
can
find many washed up by waves on the shoreline of the Bay. (Look for
something
black and triangular). They vary in size, from barely visible to teeth 5
inches
long - teeth of the great white shark. Sharks have an unlimited supply
of
teeth, which are formed in layered rows. These teeth are not set firmly
in the
jaws, but are positioned in the gums. No cavities, permanently missing
teeth,
or tooth-aches for a shark! If a tooth is lost it is quickly replaced by
another. Any shark has numerous amount of teeth loss by the time is
reaches
adulthood. Don't be alarmed by the numerous teeth you find- remember
these are
about twenty million years old!
Paleontologist
discovered that many of the whale bones had
scratches and scars by teeth of sharks. It would appear that Miocene
sharks
were attracted to the Chesapeake Bay by the young whales that made easy prey.
Types of
Shark Teeth and Shells found on our Beach
We have a Fossil book at the house that depicts the type of shark teeth and shells you will discover on your walks on the bay. It is great fun identifying your treasures!
.
The Marko Shark's teeth
curve quite a bit and are very
large.
The Sand shark teeth
can easily be distinguished from the
other sharks due to the broad tip tri-pod like base.
Extinct Great white are large and pointy
Snaggletooth shark teeth have jagged edges
Scallop, calm, Arc,Oyster, Snail , Moon shells
Barnacle, coral ,sea urchin and Sand dollars