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Huffman Dam Isotelus maximus Trilobite Fossil
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Huffman Dam Isotelus maximus Trilobite Fossil
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Description
Title
Huffman
Dam
Isotelus
maximus
Trilobite
Fossil
Subject
Plants and Animals
Geography and Natural Resources
Fossils
Trilobites
Place
Fairborn (Ohio)
Greene County (Ohio)
Description
The
Huffman
Dam
trilobite
,
seen
here,
is
one
of
largest
complete
trilobites
ever
found
,
measuring
14.5
inches
long
and
10
inches
wide
(35.56
x
25.40
cm)
.
It
was
discovered
in the
summer
of
1919
during
excavation
for the
outlet
conduits
at
Huffman
Dam
,
near
Fairborn
,
Ohio
. The
trilobite
is
of the
genus
Isotelus
maximus
,
one
of the
largest
trilobites
,
which
lived
during
the
Ordovician
Period
.
Trilobites
,
Ohio's
state
fossil
, are a
type
of
arthropod
(like
centipedes
,
crab
, and
shrimp)
.
Members
of this
animal
group
have
hard
outer
skeletons
.
Arthropods
have
bodies
that are
divided
into
segments
, and
paired
,
jointed
limbs
. This
entire
class
of
marine
arthropods
is
now
extinct
.
Trilobites
died
out
toward
the
end
of the
Permian
Period
,
about
250
million
years
ago
,
during
a
period
of
widespread
extinction
that
affected
many
invertebrate
animal
groups
. This
animal
is
named
"
trilobite
"
because
two
long
grooves
divide
its
body
into
three
parts
: the
central
lobe
, and the
right
and
left
lobes
.
Trilobite
,
means
"
three-lobed
creature.
" In
1985
the
General
Assembly
named
the
trilobite
genus
Isotelusthe
official
state
invertebrate
fossil
.
Date of Original
1919
Source
Natural history specimen(s)
Submitting Institution
Miami Conservancy District
Rights
For rights and reproduction requests, go to the Ohio Historical Society's Audiovisual and Graphic Reproduction Services page at
http://www.ohiohistory.org/resource/audiovis/photodup.html;
Online access is provided for research purposes only. For rights and reproduction requests or more information, go to
http://www.ohiohistory.org/images/information
Type
StillImage
File Name
Om1725_2803818_043.tif
Image Height
1797
Image Width
1659
File Size
312.283 KB
Format
picture
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