Fossils B/C

[hmmm]

List one specimen from the list that went extinct during each of the 5 major mass extinctions.

Click to Show Answer

O-S:Isotelus

Late D:Heliophyllum

P-T:Rhombopora

T-J:Gryphaea

K-Pg:Triceratops

[wec01]

List one specimen from the list that went extinct during each of the 5 major mass extinctions.

Click to Show Answer

O-S:Isotelus

Late D:Heliophyllum

P-T:Rhombopora

T-J:Gryphaea

K-Pg:Triceratops

Looks good except, (Click to Show Hidden Text)

I believe Gryphaea went extinct after the end Triassic extinction.

Your turn

[hmmm]

Question (Click to Show Hidden Text)

Name an index fossil on the list for the Cambrian,Devonian,Mississippian,Permian,Jurassic,and Cretaceous.

[wec01]

Question (Click to Show Hidden Text)

Name an index fossil on the list for the Cambrian,Devonian,Mississippian,Permian,Jurassic,and Cretaceous.

Answer (Click to Show Hidden Text)

Cambrian: Elrathia
Devonian: Eldredgeops
Mississippian: Archimedes
Permian: Fusulinida
Jurassic: Dactylioceras
Cretaceous: Bellemnitella

[hmmm]

Question (Click to Show Hidden Text)

Name an index fossil on the list for the Cambrian,Devonian,Mississippian,Permian,Jurassic,and Cretaceous.

Answer (Click to Show Hidden Text)

Cambrian: Elrathia
Devonian: Eldredgeops
Mississippian: Archimedes
Permian: Fusulinida
Jurassic: Dactylioceras
Cretaceous: Bellemnitella

I have Archimedes as Mississippian to Permian and Fusulinida as Pennsylvanian to Permian. Everything else looks right. Your turn.

[wec01]

What part of each of the following organisms is most commonly preserved in the fossil record?:
1. Bellemnitella
2. Foraminifera
3. Orthoceras
4. Crinoidea
5. Blastoidea
6. Anthozoa

[hmmm]

What part of each of the following organisms is most commonly preserved in the fossil record?:
1. Bellemnitella
2. Foraminifera
3. Orthoceras
4. Crinoidea
5. Blastoidea
6. Anthozoa

Answers (Click to Show Hidden Text)

1.rostrum/guard
2.test
3.camarae?
4.stem
5.theca
6.corallum

[wec01]

What part of each of the following organisms is most commonly preserved in the fossil record?:
1. Bellemnitella
2. Foraminifera
3. Orthoceras
4. Crinoidea
5. Blastoidea
6. Anthozoa

Answers (Click to Show Hidden Text)

1.rostrum/guard
2.test
3.camarae?
4.stem
5.theca
6.corallum

Pretty much (Click to Show Hidden Text)

for 3, I was looking for phragmocone, but that's made up of the camerae, so that answer makes sense too.

[hmmm]

Questions (Click to Show Hidden Text)

[img]https://files.geocollections.info/large/fa/01/fa01b93b-8243-4c6a-9ab9-cd3a0f75656a.jpg[/img]
1.ID
2.What is it doing and why?
3.What type of eyes?
4.What does the name mean?

[RockRoll92]

answers (Click to Show Hidden Text)

Genus Calymene, It's rolled up for defense, compound eyes, beautiful crescent