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Re: Fossils B/C

Posted: October 14th, 2019, 6:37 am
by ChimpLopez
wec01 wrote:
October 14th, 2019, 5:58 am
What are two ways increasing CO2 levels in the atmosphere can harm corals?
Increasing CO2 levels will increase ocean acidity because of dissolving CO2 in the water, which can kill the corals. Moreover, the increasing acidity will prevent the forming of Calcium Carbonate, which is essential to coral and reef life.

Re: Fossils B/C

Posted: October 14th, 2019, 8:39 am
by wec01
ChimpLopez wrote:
October 14th, 2019, 6:37 am
wec01 wrote:
October 14th, 2019, 5:58 am
What are two ways increasing CO2 levels in the atmosphere can harm corals?
Increasing CO2 levels will increase ocean acidity because of dissolving CO2 in the water, which can kill the corals. Moreover, the increasing acidity will prevent the forming of Calcium Carbonate, which is essential to coral and reef life.
Yup, they can also warm the oceans causing bleaching along with sea level rise which makes it harder for corals to get sunlight.

Your turn!

Re: Fossils B/C

Posted: November 30th, 2019, 6:01 pm
by reninkidney
Revival!

1. What is so exceptional about the preservation of specimens in Beecher's Trilobite Bed?
2. In the Burgess Shale formation, what evidence proves that the organisms died instantly?
Image
3. Name the genus of this specimen.
4. What was the diet of this specimen?
5. Did this specimen walk on 2 legs or 4 legs?

Re: Fossils B/C

Posted: December 1st, 2019, 7:45 am
by sciolyrules107
reninkidney wrote:
November 30th, 2019, 6:01 pm
Revival!

1. What is so exceptional about the preservation of specimens in Beecher's Trilobite Bed?
2. In the Burgess Shale formation, what evidence proves that the organisms died instantly?
Image
3. Name the genus of this specimen.
4. What was the diet of this specimen?
5. Did this specimen walk on 2 legs or 4 legs?
1. Soft tissues preserved
2. Invertebrates did not curl up
3. Brachiosaurus
4. Plants: ginkgo, confers, tree ferns
5. Four

Re: Fossils B/C

Posted: December 1st, 2019, 12:08 pm
by DanglesBanana
How do you reveal the answer when it says "click to show answer" because when I click it does not show?

Re: Fossils B/C

Posted: December 1st, 2019, 1:14 pm
by reninkidney
sciolyrules107 wrote:
December 1st, 2019, 7:45 am
reninkidney wrote:
November 30th, 2019, 6:01 pm
Revival!

1. What is so exceptional about the preservation of specimens in Beecher's Trilobite Bed?
2. In the Burgess Shale formation, what evidence proves that the organisms died instantly?
Image
3. Name the genus of this specimen.
4. What was the diet of this specimen?
5. Did this specimen walk on 2 legs or 4 legs?
1. Soft tissues preserved
2. Invertebrates did not curl up
3. Brachiosaurus
4. Plants: ginkgo, conifers, tree ferns
5. Four
All right, but for number 1 I was looking for how the mode of preservation in Beecher's Trilobite Bed resulted in exceptional preservation The soft tissue of the specimens were preserved by pyrite replacement, which meant the soft tissue could be studied by X-rays. and for number 2, you could have added There is no evidence of the specimens attempting to burrow out, which meant they must have died instantly..

Your turn!

Re: Fossils B/C

Posted: December 17th, 2019, 5:54 pm
by sciolyrules107
Hi, sorry I haven't responded to this thread in so long. I was spending my time writing a fossils test for the Northview invite.
Since I don't have the mind capacity/any interest to come up with any more questions, I'm just going to use some from the test

A. https://vignette.wikia.nocookie.net/cho ... 0605163219
B. http://www.thefossilforum.com/uploads/m ... 565344.jpg
C.https://t2.ea.ltmcdn.com/en/images/2/7/ ... 72_600.jpg
D.http://www.northtexasfossils.com/fieldt ... 64-800.jpg
E.https://www.thoughtco.com/thmb/4t4XUwID ... c91623.jpg

1. Identify the lowest taxonomic level of specimens A-E to (1a-1e on answer sheet). Make sure you write the taxonomic rank. hint: for specimen A give the genus
2. Fill in the blank: Class Placodermi have bones made of matrix with mostly collagen fibers hardened by ____________
3. Which of the specimens are extant? (hint: there are two)
4. What is the theory that relates specimen B to A?
5. What evidence supports the theory proposed in question 4?
6. What is the species (on fossils list) that is in specimen A?
7. What is the sexual dimorphism in the species from question 6?
8. What is the etymology (word origin) of specimen C?
9. What class does specimen E belong to?
10. Which lagerstatten can you find an abundance of specimen E?

Re: Fossils B/C

Posted: December 19th, 2019, 9:18 am
by XurbDic
sciolyrules107 wrote:
December 17th, 2019, 5:54 pm
Hi, sorry I haven't responded to this thread in so long. I was spending my time writing a fossils test for the Northview invite.
Since I don't have the mind capacity/any interest to come up with any more questions, I'm just going to use some from the test

A. https://vignette.wikia.nocookie.net/cho ... 0605163219
B. http://www.thefossilforum.com/uploads/m ... 565344.jpg
C.https://t2.ea.ltmcdn.com/en/images/2/7/ ... 72_600.jpg
D.http://www.northtexasfossils.com/fieldt ... 64-800.jpg
E.https://www.thoughtco.com/thmb/4t4XUwID ... c91623.jpg

1. Identify the lowest taxonomic level of specimens A-E to (1a-1e on answer sheet). Make sure you write the taxonomic rank. hint: for specimen A give the genus
2. Fill in the blank: Class Placodermi have bones made of matrix with mostly collagen fibers hardened by ____________
3. Which of the specimens are extant? (hint: there are two)
4. What is the theory that relates specimen B to A?
5. What evidence supports the theory proposed in question 4?
6. What is the species (on fossils list) that is in specimen A?
7. What is the sexual dimorphism in the species from question 6?
8. What is the etymology (word origin) of specimen C?
9. What class does specimen E belong to?
10. Which lagerstatten can you find an abundance of specimen E?
Is this from Northview? I remember taking a test with these questions.
1a - Charcharocles megalodon
1b - Otodus
1c - Agnatha
1d - Batoidea
1e - Knightia
2 - Calcium carbonate
3 - Agnatha (C) and Batoidea (D)
4 - Evolution
5 - The taxa have transitional teeth
6 - Megalodon
7 - Females are larger than males
8 - "Agnatha" in Greek means "no jaws"
9 - Actinopterygii
10 - Green River Formation in Colorado, Wyoming, and Utah

Re: Fossils B/C

Posted: December 25th, 2019, 1:07 pm
by sciolyrules107
XurbDic wrote:
December 19th, 2019, 9:18 am
sciolyrules107 wrote:
December 17th, 2019, 5:54 pm
Hi, sorry I haven't responded to this thread in so long. I was spending my time writing a fossils test for the Northview invite.
Since I don't have the mind capacity/any interest to come up with any more questions, I'm just going to use some from the test

A. https://vignette.wikia.nocookie.net/cho ... 0605163219
B. http://www.thefossilforum.com/uploads/m ... 565344.jpg
C.https://t2.ea.ltmcdn.com/en/images/2/7/ ... 72_600.jpg
D.http://www.northtexasfossils.com/fieldt ... 64-800.jpg
E.https://www.thoughtco.com/thmb/4t4XUwID ... c91623.jpg

1. Identify the lowest taxonomic level of specimens A-E to (1a-1e on answer sheet). Make sure you write the taxonomic rank. hint: for specimen A give the genus
2. Fill in the blank: Class Placodermi have bones made of matrix with mostly collagen fibers hardened by ____________
3. Which of the specimens are extant? (hint: there are two)
4. What is the theory that relates specimen B to A?
5. What evidence supports the theory proposed in question 4?
6. What is the species (on fossils list) that is in specimen A?
7. What is the sexual dimorphism in the species from question 6?
8. What is the etymology (word origin) of specimen C?
9. What class does specimen E belong to?
10. Which lagerstatten can you find an abundance of specimen E?
Is this from Northview? I remember taking a test with these questions.
1a - Charcharocles megalodon
1b - Otodus
1c - Agnatha
1d - Batoidea
1e - Knightia
2 - Calcium carbonate
3 - Agnatha (C) and Batoidea (D)
4 - Evolution
5 - The taxa have transitional teeth
6 - Megalodon
7 - Females are larger than males
8 - "Agnatha" in Greek means "no jaws"
9 - Actinopterygii
10 - Green River Formation in Colorado, Wyoming, and Utah
yep, all correct except for 1a which was just genus charcharocles
and yes, I co-wrote that dreadful 170 pt test
your turn!

Re: Fossils B/C

Posted: December 26th, 2019, 1:30 pm
by reninkidney
1. Identify this specimen to the genus and class level:
Image

2. What is the difference between Holochroal and Schizochroal eyes? Which type of eyes does this specimen posses?

3. What are the 3 types of trilobite facial sutures?

4. Identify this specimen:
Image
What is this specimen made of?