7 
0 
6 
0 7
2Cut out Pictures and put them in chart
7 0 6 0 7
2
6
1 
6
3
3 3
6
7
3 4
4
5
6
1 2
4 1
3
5 2
1 6
7
5
5
6 4
7 4
2
5 2
5
4 3
3
2 
7
1 4
| Cambrium | Ordovician- Silurian |
Devonian | Carbonifereous | Triassic | Jurassic | Cretaceous | Tertiary |
| |
|||||||
| Life Form Succession | Name ______________________________ Date ________________ Period __________ |
Directions: Use the life form succession table that you constructed to answer the following questions.
| 1. Name the group that has survived basically unchanged since the Cambrium period. | _________________________ |
| 2. During what period did the trilobites die out? .. | _________________________ |
| 3. What term describes a species that no longer exists? | _________________________ |
| 4. During what period did the dinosaurs appear? ... | _________________________ |
| 5. In what period did the angiosperms appear? .... | _________________________ |
| 6. In what period did primates appear? ............ ...... | _________________________ |
| 7. Which genus, cup corals or the goniatite, survived the longest on earth? | _________________________ |
| 8. In which period did cycads appear? ............. | _________________________ |
| 9. Which group, primates or dinosaurs, has survived the longest on earth? | _________________________ |
| 10. Which of the following was more successful inoceramus or spirifer? | _________________________ |
Directions
Not all time periods had the same life forms. Some life forms became extinct and others evolved into different species. As a scientist you are faced with determining the order in which these life forms existed. In this exercise you will determine the succession of life forms according to the fossil record. This can be determined based on two facts:
You will be provided with a sheet of fossils with numbers next to them. The numbers indicate different periods of geological time. The oldest fossils are from the Cambrium and are identified by the number "0". Cut out each fossil and tape or paste them on the provided geological time grid.
When you have completed the table answer the questions on the worksheet.
Below are the names and pictures of the fossils you will cut out and place in proper
geological order.
Brachiopod
Bi-valve Burrowing
Dinosaur Horn
Coral
Pecten
Trilobite
Cycad
Lingulla
Flowering
Bivalve
Primate Bi-valve Ammonites
Brachiopod
Plants Oyster Inoceramus
Lampshell
Spirifer