Fossils B/C

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azuritemalachite
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Re: Fossils B/C

Post by azuritemalachite »

Order:
Informally known as:
Habitat (choose 1):
a) freshwater b) marine c) both
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Re: Fossils B/C

Post by GoofyFoofer »

azuritemalachite wrote:Order:
Informally known as:
Habitat (choose 1):
a) freshwater b) marine c) both
Order: Eurypterida
Informally known as: "Sea Scorpions"
Habitat: c) both
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Re: Fossils B/C

Post by azuritemalachite »

GoofyFoofer wrote:
azuritemalachite wrote:Order:
Informally known as:
Habitat (choose 1):
a) freshwater b) marine c) both
Order: Eurypterida
Informally known as: "Sea Scorpions"
Habitat: c) both
Correct! :) :)
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Re: Fossils B/C

Post by GoofyFoofer »

Ok. 
[img]http://www.kgs.ku.edu/Extension/fossils/jpegs/fus_1.jpg[/img]
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Re: Fossils B/C

Post by boomvroomshroom » 

Order: Fusulinida
Extinction in which they died out (? don't understand this question), but they died out in the Great Permian Extinction
Shell composition: Calcite (CaCO3)
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Re: Fossils B/C

Post by boomvroomshroom »

Okay, question:

List one of the differences between Archaeopteryx and modern birds.
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Re: Fossils B/C

Post by Magikarpmaster629 » 

Archaeopteryx has a skeleton very similar to reptiles, rather than birds. However, it has a few special bones that only birds have, making it an early bird. (pun somewhat intended)
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Re: Fossils B/C

Post by boomvroomshroom »

Magikarpmaster629 wrote:
Archaeopteryx has a skeleton very similar to reptiles, rather than birds. However, it has a few special bones that only birds have, making it an early bird. (pun somewhat intended)
Correct.
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Re: Fossils B/C

Post by Magikarpmaster629 »

Ok, describe the difference between articulate and inarticulate brachiopods.
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Re: Fossils B/C

Post by boomvroomshroom » 

- Articulate: toothed hinges, simple open/close muscles
- Inarticulate: untoothed hinges, complex alignment muscles
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