Fossils B/C

[kate!]

Alright, I'm going to restart this.

Questions: (Click to Show Hidden Text)

[img]https://bit.ly/2SgIbgg[/img]
1. Identify this specimen to the nearest taxon provided by the official list.
2. What is the most common part of this specimen to be fossilized? (It is shown in this picture.)
3. Why was this specimen a relatively slow swimmer?
4. How was this specimen able to have such high speeds of prey capture?

[hippo9]

Alright, I'm going to restart this.

Questions: (Click to Show Hidden Text)

[img]https://bit.ly/2SgIbgg[/img]
1. Identify this specimen to the nearest taxon provided by the official list.
2. What is the most common part of this specimen to be fossilized? (It is shown in this picture.)
3. Why was this specimen a relatively slow swimmer?
4. How was this specimen able to have such high speeds of prey capture?

Click to Show Answer

1. Dunkleosteus

2. Skull

3. It was very heavy

4. It was able to open it's jaw fast enough to create a suction effect.

Also, sorry I forgot to post a question

[kate!]

Alright, I'm going to restart this.

Questions: (Click to Show Hidden Text)

[img]https://bit.ly/2SgIbgg[/img]
1. Identify this specimen to the nearest taxon provided by the official list.
2. What is the most common part of this specimen to be fossilized? (It is shown in this picture.)
3. Why was this specimen a relatively slow swimmer?
4. How was this specimen able to have such high speeds of prey capture?

Click to Show Answer

1. Dunkleosteus

2. Skull

3. It was very heavy

4. It was able to open it's jaw fast enough to create a suction effect.

Also, sorry I forgot to post a question

Well now you can, because those are all correct.

[hippo9]

Questions (Click to Show Hidden Text)

[img]http://drydredgers.org/brachpics/raf2.jpg[/img]
1. What is the genus of this fossil?
2. What period is it most likely from?
3. What is this genus named after?

[IvanGe]

Questions (Click to Show Hidden Text)

[img]http://drydredgers.org/brachpics/raf2.jpg[/img]
1. What is the genus of this fossil?
2. What period is it most likely from?
3. What is this genus named after?

Click to Show Answer

1. Rafinesquina

2.Ordovician

3.Constantine Rafinesque, 19th-century naturalist

[hippo9]

Questions (Click to Show Hidden Text)

[img]http://drydredgers.org/brachpics/raf2.jpg[/img]
1. What is the genus of this fossil?
2. What period is it most likely from?
3. What is this genus named after?

Click to Show Answer

1. Rafinesquina

2.Ordovician

3.Constantine Rafinesque, 19th-century naturalist

Yep!, your turn.

[IvanGe]

Questions (Click to Show Hidden Text)

[img]http://www.thefossilforum.com/uploads/1206825361/gallery_330_106_111279.jpg[/img]
1. What is the genus of this fossil?
2. What are the shells usually made of?
3. What are the grooves in the shell known as?

[isotelus]

Questions (Click to Show Hidden Text)

[img]http://www.thefossilforum.com/uploads/1206825361/gallery_330_106_111279.jpg[/img]
1. What is the genus of this fossil?
2. What are the shells usually made of?
3. What are the grooves in the shell known as?

Answers: (Click to Show Hidden Text)

1. Composita
2. they are calcareous
3. sulcus/sulci

[IvanGe]

Questions (Click to Show Hidden Text)

[img]http://www.thefossilforum.com/uploads/1206825361/gallery_330_106_111279.jpg[/img]
1. What is the genus of this fossil?
2. What are the shells usually made of?
3. What are the grooves in the shell known as?

1. Composita
2. they are calcareous
3. sulcus/sulci

yup all correct. Your turn.

[isotelus]

Questions: (Click to Show Hidden Text)

[img]https://cdn11.bigcommerce.com/s-5j66np/images/stencil/500x659/products/689/20341/spike2016-005__03823.1495151807.jpg?c=2[/img]
1. ID down to the most specific classification given by the rules.
2. What body part is this, and what was the purpose of the body part?
3. Were they carnivorous, omnivorous, insectivorous, herbivorous, or phototropic?
4. What was the mode of life and was it terrestrial or aquatic?
5. What does the genus name mean?
6. How many species are there in this genus?
[img]https://c8.alamy.com/comp/ABWMDA/replica-pelycosaur-dimetrodon-limbatus-skull-from-early-permian-period-ABWMDA.jpg[/img]
1. ID down to the most specific classification given by the rules.
2. Were they carnivorous, omnivorous, insectivorous, herbivorous, or phototropic?
3. What was the mode of life and was it terrestrial or aquatic?
4. What was the unique feature of this organism, and what could have been it's purpose?
5. Did they display sexual dimorphism? If so, how?