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Are
Fossils Important? |
Compared to what? -- Medical advances?
Aviation inventions? Understanding the origin of the universe?
Who won the last 10 World Series games? Importance is a
relative term. What is important to one person may be of
no interest to someone else.
Fossils do play a role in modern society. Oil, natural gas
and coal are fossil fuels. They exist because of previous
life forms. Oil and gas are created by the decay of marine
plants and animals. Coal is formed by the compression and
alteration of the remains of land plants.
Fossil-bearing rock is widely used in building stone. Indiana
Limestone or Bedford Stone is one of the most widely used
building stones in the world. It can be found in the Falls
of the Ohio State Park Interpretive Center. Look at it up
close. Those sand grains are actually microscopic fossils.
Use a magnifying glass to see them better.
What can we learn from fossils?
Fossils tell us about life long ago. A fossil is the evidence
or remains (usually in rock) of previously existing life.
More than just a curiosity of nature, in the proper context,
a fossil can tell us about environments and organisms of
long ago. We can learn about the climate and weather. One
can decipher current flow in ancient oceans or streams by
the alignment of fossils. We can learn if an area was covered
by an ocean (such as at the Falls of the Ohio), river, or
desert by the type of fossils observed in the rock. There
is more...
Fossils give us insight into the development of organisms.
Which life forms came first? Which share a common ancestry?
How have certain organisms changed over time? Fossils can
help answer many of these questions!
Evolution is the process by which life changes over time.
This process is almost immeasurable over the life spans
of a handful of human generations. A million years is needed
for a species to change to a new one. Yet the outcomes --
extinctions and changes that evolve new species -- can be
found throughout nature.
Changes may evolve from sudden catastrophic phenomena of
nature (meteorites, major volcanic eruptions) or through
gradual processes like continental drift, mountain building
or shifts in the climate. Whatever the cause -- change is
a constant force in nature.
Are fossils valuable?
Some fossils are rare -- one (or few)-of-a- kind. Other
fossils are widespread. However rarity does not always play
a role in the value. Paleontologists can only assign one
form of value -- scientific value. The dollar value is assigned
like everything else -- by the market -- how much someone
is willing to pay for it. How can someone assign a monetary
value to something that is priceless or irreplaceable?
Complete dinosaurs are rare. Only a handful exist in the
world. Their value in scientific terms is immeasurable.
In dollars perhaps hundreds of thousands. Dinosaur bones
are not rare in certain rock layers, and it is possible
to purchase a chunk of bone for a couple of dollars.
Rare fossils do not have to be dinosaurs. Certain species
of corals or brachiopods are rare, but not valuable in monetary
terms because most fossil collectors do not have an interest
in them. The most "valuable" fossils rate because
they are "cute" or "beautiful." Complete
crinoids or trilobites fall into that category. Indeed,
for the paleontologist, the scientific value makes the monetary
value irrelevant. Unfortunately, museums often cannot find
funds to purchase rare fossils from collectors or dealers.
Like art work, there are probably many great "pieces"
in private hands. Like art, private ownership is okay. Eventually
some will end up in museums, while others will be discarded
or destroyed due to the lack of knowledge by the owner.
Should fossils be considered a renewable or non-renewable
resource?
Most paleontologists consider fossils to be a renewable
resource, although specific sites may have limited numbers.
Fossils are destroyed by the natural forces of erosion and
weathering and human intervention (construction, quarrying)
much faster than they can be salvaged by professional and
amateur paleontologists. (There have never been, nor ever
will be, enough paleontologists to preserve more than a
tiny percent of the fossils exposed by nature or humans.)
Where can I get fossils identified?
Museums and university geology departments are the most
common places people go to get fossils identified. No paleontologist
can identify every fossil. There are too many different
kinds of fossils and paleontologists tend to specialize
with specific organisms. Most can provide general assistance
and lead you in the right direction to get something identified
with at least a general name.
In recent years, professional paleontologists have joined
cowboys in becoming a dying breed. Jobs in the petroleum
industry are drying up. Universities, colleges and museums
have been eliminating positions. Government paleontologists
are losing their jobs as part of "down-sizing."
There are many states where the number of professional paleontologists
can be counted on one hand! Many paleontologists end up
working in other geology fields. There are hundreds of amateur
paleontologists in the United States able to identify different
kinds of fossils. In fact, amateurs may be better "generalists"
than the professionals. Some amateurs are as knowledgeable
as professionals and contribute to the scientific literature.
In Indiana, paleontologists can be found scattered across
the state. The Falls of the Ohio State Park, the Indiana
State Museum and Geological Survey, Indiana University and
some of the regional branches, and some of the other colleges.
Look for them now, because in 20 years the situation may
be much different!
Should you collect or buy fossils?
Why not? Fossils are a part of our natural world. They tell
stories about the earth of long ago. Some make great decorator
pieces. (If a starship captain can have one, why not you?)
Fossils are found on every continent across the globe. Indiana
and Kentucky hold thousands of species in the bedrock. A
word of caution is necessary. Observe state and federal
laws and the rules of common sense when collecting. Do not
collect in parks or preserves. Get permission before collecting
on private property. Be courteous when collecting. If you
find something you cannot identify -- get help. Buy or go
to the library and read fossil books. Join a local geology
club if one is available. This can be a fun and educational
hobby for an individual or the whole family!
Are fossils important to you?
The following list of contacts can help you get fossils
identified. Remember to call or write before you bring the
fossils in to be identified!
Falls
of the Ohio State Park
201 W. Riverside Dr.
Clarksville, IN 47129
(P.O. Box 1327 Jeffersonville, IN 47131-1327)
(812) 280-9970
Park naturalists |
Kyana
Geological Society
(A Louisville area hobby group)
Meets 3rd Tuesday of the month,7:30 PM, at Bank One
office at Brownsboro Road and Chenoweth Lane.
Visitors are welcome! |
Indiana
State Museum
202 N. Alabama St.
Indianapolis, IN 46204
(317) 232-1647
Curator of Paleobiology |
Mid
America Paleontological Society -
an international amateur organization
Dale Stout
2237 Meadowbrook Dr., S.E.
Cedar Rapids, IA 52403 |
Indiana
University
Department of Geosciences
1005 E. Tenth St.
Bloomington, IN 47405
(812) 855-5582
Paleontologist |
Indiana
Paleontological Society
Margaret Kahrs
9145W U.S. Hwy 50 East
Seymour, IN 47274 |
University
of Louisville
Dept. of Geography & Geosciences
Belknap Campus
Louisville, KY 40292
(502) 852-6821
Paleontologist |
Kentucky
Paleontological Society
Dan Phelps
365 Cromwell Way
Lexington, KY 40503 |
University
of Kentucky
Department of Geological Sciences
101 Slone Building
Louisville, KY 40506-0053
(606) 257-1401
Paleontologist |
The
Paleontological Society - mostly professionals and serious
amateurs.
The Paleontological Society Secretary,
c/o Allen Press
P. O. Box 1897
Lawrence, KS 66044-8897 |
Kentucky
Geological Survey
228 Mines and Minerals Bldg.
University of Kentucky
Lexington, KY 40506-0107
(606) 257-5500
Paleontologist |
Falls
Fossil Festival
Held in September at State Park.
Call (812) 280-9970 for more information. |
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