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The Fossil Record

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Title: The Fossil Record Author: Mark Last modified by: Owner Created Date: 5/10/2003 9:41:00 PM Document presentation format: On-screen Show (4:3) Company – PowerPoint PPT presentation

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Title: The Fossil Record


1
The Fossil Record
2
Understanding the fossil record.
  • Most people don't realize that in terms of
    numbers of fossils 95 of the fossil record
    consists of shallow marine organisms such as
    corals and shellfish.

3
Understanding the fossil record.
  • Within the remaining 5, 95 of that are the
    algae and plant/tree fossils, including the
    vegetation, and all the other invertebrate
    fossils including the insects.
  • Thus the vertebrates (fish, amphibians, reptiles,
    birds and mammals) together make up very little
    of the fossil record -- in fact, 5 of 5, which
    is a mere 0.25 of the entire fossil record.
  • So comparatively speaking there are very, very
    few amphibian, reptile, bird and mammal fossils,
    yet so much is often made of them.

4
Understanding the fossil record.
  • For example, the number of dinosaur skeletons in
    all the world's museums (both public and
    university) totals only about 2,100.
  • Furthermore, of this 0.25 of the fossil record
    which is vertebrates, only 1 of that 0.25 (or
    0.0025) are vertebrate fossils that consist of
    more than a single bone!
  • For example, there's only one Stegosaurus skull
    that has been found, and many of the horse
    species are each represented by only one specimen
    of one tooth!

5
What is a fossil?
  • The remains of an animal or plant preserved from
    an earlier era inside a rock or other geological
    deposit, often as an impression or in a petrified
    state World English
    Dictionary

6
What is a fossil?
  • Are all fossils extinct?

7
Living fossils
  • Have they found any fossils of animals that are
    alive today with dinosaur fossils?
  • Everywhere you find dinosaur fossils, you find
    fossils of animals living today.
  • Here are a few.

8
Living fossils
9
Living fossils
  • Coelacanth (see-la-can-th)
  • Was thought to be an extinct fish that was the
    first to walk on land because of its unique
    fins.
  • In 1938 off the coast of Africa they caught one.
  • It used its fins to blow the sand away and
    find food.

10
Living fossils
11
Living fossils
  • These were thought to be one of the first living
    creatures to become extinct, but they were
    recently found in Australia alive and well.

12
Living fossils
  • Do you recognize any of these fish fossils?

13
Living fossils
14
  • Most of the fossils found are of animals that are
    still alive today.

15
What is the fossil record?
  • It is a snapshot of all the animals that were
    alive before the flood.
  • What person was alive when this bluegill was in
    the pond?
  • NOAH!

16
An amazing thing!
  • Of the animals we find in the fossil record that
    are still alive,
  • They are the same as the ones that are
    fossilized!
  • They havent changed.

17
What is a fossil?
  • Are fossils the actual bones?
  • No, they are fossilized.
  • Either they leave an impression
  • Or the minerals replace the bone and it becomes
    petrified.

18
What is a fossil?
  • However, actual fresh dinosaur bones have been
    found.
  • In 1961, in Alaska, a petroleum geologist
    discovered a large, half-metre-thick bone bed. As
    the bones were fresh, not permineralized, he
    assumed that these were recent bison bones. It
    took 20 years for scientists to recognize
    duckbill dinosaur bones in this deposit as well
    as the bones of horned dinosaurs, and large and
    small carnivorous dinosaurs.

19
What is a fossil?
  • Axel Heiberg Island in the Canadian Arctic, less
    than 1,200 kilometres from the North Pole, a
    prehistoric frozen forest was found.
  • The plant material is not petrified. The logs are
    still wood which can be sawn and burnt.

20
What is a fossil?
  • What kind of rock are fossils found in?
  • Dictionary Definition.
  • Fossil, remains or traces of prehistoric plants
    and animals, buried and preserved in sedimentary
    rock
  • Why couldnt they be found in granite?
  • Granite is igneous rock, or rock formed from
    magma.

21
What is a fossil?
  • A fossil is an _________ or __________ remains of
    an animal or plant.
  • Most fossils are found in _____________ rock.
  • A few are found in _______, or _______ deposits,
    etc.

impression
petrified
sedimentary
tar pits
resin
La Brea Tar Pits
22
Where do we find fossils?
  • Do we find fossils of road kill just under the
    ground on the side of the highway?
  • If we were to dredge the river, would we find
    fossils of deer and other animals which are alive
    today becoming fossils?
  • Do animals which die in the woods become fossils?

23
Where do we find fossils?
  • We find fossils in ____________ rock.

Sedimentary
24
What is sedimentary rock?
  • Existing crushed rock accumulated together at the
    bottom of a body of water.
  • Commonly known as ________layers.

sediment
25
What is sedimentary rock?
  • The mud at the mouth of a river is called
    sediment.
  • Most sediment is created by a flooding action.

26
What is sedimentary rock?
  • Sedimentary rock covers ____of the earths crust
  • Or you could say 80 of the earths crust is
    _____________.
  • The rest of the rock has been pushed up from
    under the earths crust by a ___________ event.
  • All ________of a world wide catastrophic flood.

80
flood sediment
catastrophic
evidence
27
How do fossils get into sedimentary rock?
  • First they must fall into a body of ______.
  • For an animal to just fall into water it would
    bloat and be consumed by birds or crabs etc. way
    before it could ever become a fossil.
  • Obviously a catastrophic situation must have
    occurred to bury them in sediment.

water
28
How do fossils get into sedimentary rock?
  • Then it must be ______ by sediment and put under
    great pressure.
  • Here they either rot, leaving an __________.
  • Or the minerals leach into the bones replacing
    the bone with rock _________ it.

buried
impression
petrifying
29
How do fossils get into sedimentary rock?
  • Eventually when the water recedes and rain erodes
    the earth away it ________ the fossil and we find
    them.
  • When would the best time to find fossils be?

exposes
30
How do fossils get into sedimentary rock?
  • Most fossil finds are only partial because the
    animal was caught in a mud slide or other
    catastrophic event which ______ it apart.

ripped
31
The Bible account
  • How long did the flood last? __________
  • What would you expect to find trapped in the
    sediment layers?
  • Plants animals that were alive at that time
  • Noahs flood was actually like a snapshot of
    everything that was alive then.

Approx. 1 yr.
32
What would be buried first?
  • Plants and small animals.
  • Why?
  • Then Larger animals in the upper layers of
    sediment.
  • Few, very large animals because they would have
    escaped the flood and drowned when the waters
    covered the mountain tops.

33
Thats exactly what we find.
  • Plants, small animals, fish on the bottom
    layers.

34
Thats exactly what we find.
  • Then larger animals, some caught in mud slides
    etc.

35
Thats exactly what we find.
  • Most of the large animals would escape being
    buried in mud flows but would drown when the
    water covered the earth.
  • Thus floating by wind and currents to huge
    graveyards, which we call fossil graveyards.

36
Thats exactly what we find.
  • Ongoing excavations in the Gobi Desert tell of
    one such sight that has become an embarrassment
    to evolutionists.
  • Twenty-five dinosaurs have been discovered along
    with 200 skulls of mammals.

37
Thats exactly what we find.
  • The Ashley Beds, in the southern United States,
    is an enormous phosphate graveyard that contains
    mixed remains of man with land and sea animals,
    notably dinosaurs, pleisosaurs, whales, sharks,
    rhinos, horses, mastodons, mammoths, porpoises,
    elephants, deer, pigs, dogs, and sheep.

38
Thats exactly what we find.
  • Professor F.S. Holmes (paleontologist and curator
    of the College of Charlestons Natural History
    Museum) described the fossil graveyard in a
    report.
  • He said they found, Remains of the hog, the
    horse and other animals of recent date, together
    with human bones mingled with the bones of the
    mastodon and extinct gigantic lizards."
  • The gigantic lizard is pictured on the cover of
    his book.

39
Footprints
  • How do footprints become fossilized?
  • Are there any fossil footprints being formed from
    when you walked in the mud last?
  • They would need to be made and covered _________.

quickly
40
Footprints
  • Notice they seem to be ______ as if from some
    catastrophe.
  • They are found in ash type sediment which was
    covered quickly.

running
41
Footprints
  • Footprint fossils can only be evidence of a great
    catastrophic event.
  • We know this event as ____________.

Noahs Flood
42
Dinosaur egg nests
  • Are there any nests of animals being fossilized
    now?
  • What would have to happen for a nest to become
    fossilized?
  • It would have to be covered quickly or other
    animals would eat them.

43
Fish eating fish
  • How is this is clear evidence of a catastrophic
    event.

44
Polystrate fossils
  • Poly many
  • Strate or strata
  • Means fossils that extend through many layers of
    sediment strata.
  • Usually trees like in Joggins Nova Scotia.

45
Polystrate fossils
  • Sometimes whales and other big animals are found
    with their bones going through more than one
    layer of sediment.
  • This is what you would expect from a world wide
    flood.

46
Sediment layers
  • How were they formed?
  • Could they representmillions of years?
  • Do we have nice even layers forming now?
  • How would the top and bottom be so straight?

47
Its so clear, why cant they see?
  • Footprints story the TV.
  • They know in their heart that evolution isnt
    true, but they dont know what to do.
  • If you push creation you build a wall and an
    argument.
  • If you show them the gospel, theyll get saved
    and want to know about creation.

48
The Fossil Record
The end
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