Common missouri fossils
Download
1 / 24

Common Missouri Fossils - PowerPoint PPT Presentation


  • 378 Views
  • Uploaded on

Common Missouri Fossils. Trilobites. Trilobites are extinct sea creatures that were one of the first forms of life on earth. They ruled the world before the time of the dinosaurs. What do you think Trilobites are related to?. Trilobites Today.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Common Missouri Fossils' - liam


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Trilobites
Trilobites

  • Trilobites are extinct sea creatures that were one of the first forms of life on earth. They ruled the world before the time of the dinosaurs.



Trilobites today
Trilobites Today

Their closest living relative today is the horseshoe crab.

They are also related to the lobster and crab.


Fern fossils
Fern Fossils

  • The fern fossil records extend back 400 million years ago.

  • Ferns live in a wide range of habitats, ranging from the tropics to cold temperate regions.



Modern ferns
Modern Ferns

Yes. Did you know that ferns have leaves,

called fronds, which usually consist of leaflets.


Crinoids
Crinoids

  • Crinoids resemble flowers, with their cluster of waving arms on a long stem. They are sometimes called sea lilies.

  • Crinoids are not plants. They are animals that have lived in the world's oceans more than 490 million years ago.



Crinoid relatives
Crinoid relatives

  • Modern day relatives are starfish, sea urchins, sea cucumbers, and feather stars.

A Passion Flower feather star


Ancient gastropods
Ancient Gastropods

  • Gastropods are the most diverse and abundant type of mollusks, with nearly 35,000 living and 15,000 fossil species identified so far.

  • Gastropods include snails, slugs, conchs, whelks, and limpets.



Modern gastropods
Modern Gastropods

  • Present day relatives are both marine and land snails and slugs.


Fossil bivalves
Fossil Bivalves

  • Bivalves are among the oldest fossils from more than 500 million years ago.



Modern bivalve
Modern Bivalve

  • Bivalves are mollusks.

  • They have two shells that are right and left handed which are asymmetrical.


Fossilized fish
Fossilized Fish

  • Fish are the most abundant of all living vertebrates and make up more than half of the approximately 48,500 species with us today! 

  • Fish are rare as fossils because the fragile nature of a fish body makes it a poor candidate for fossilization (except shark's teeth).




Mastodons
Mastodons

  • Mastodons were leaf eaters with multi-cusped teeth.

  • Mastodons became extinct approximately 11,000 years ago.

  • Mammoths were larger and had teeth adapted primarily for grazing (eating grasses).



Modern day mastodons
Modern Day Mastodons

  • Mammoths were larger and had teeth adapted primarily for grazing (eating grass).

  • Closest modern day relative is the elephant.




ad