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Fossil Lake ID Wyoming

Total questions: 26

Worksheet time: 13mins

Name
Class
Date
1.

Identify this fossil fish (Note the streamlined "skinny" body):

a)

Knightia eocaena

b)

Knightia alta

c)

Diplomystus dentatus

d)

Mioplosus labracoides

2.

Identify this fossil fish (Note the upturned mouth):

a)

Knightia eocaena

b)

Knightia alta

c)

Diplomystus dentatus

d)

Mioplosus labracoides

3.

Identify this fossil fish (note the V-shaped tail):

a)

Knightia eocaena

b)

Knightia alta

c)

Diplomystus dentatus

d)

Mioplosus labracoides

4.

Identify this fossil fish:

a)

Knightia eocaena

b)

Knightia alta

c)

Diplomystus dentatus

d)

Mioplosus labracoides

5.

Identify this fossil fish:

a)

Knightia eocaena

b)

Knightia alta

c)

Diplomystus dentatus

d)

Mioplosus labracoides

6.

Identify this fossil fish (note the deep belly that makes the fish look pregnant):

a)

Knightia eocaena

b)

Knightia alta

c)

Diplomystus dentatus

d)

Mioplosus labracoides

7.

Identify this fossil fish:

a)

Knightia eocaena

b)

Knightia alta

c)

Diplomystus dentatus

d)

Mioplosus labracoides

8.

Identify this fossil fish (Note the preserved scales):

a)

Knightia eocaena

b)

Knightia alta

c)

Diplomystus dentatus

d)

Mioplosus labracoides

9.

Identify this fossil fish (Note the preserved scales):

a)

Knightia eocaena

b)

Knightia alta

c)

Diplomystus dentatus

d)

Mioplosus labracoides

10.

What fish is the most common at fossil lake (accounts for over half of all fish found)? It is also the state fish of Wyoming.

a)

Knightia eocaena

b)

Knightia alta

c)

Diplomystus dentatus

d)

Mioplosus labracoides

11.

Which fish are predators? (select all)

a)

Knightia

b)

Diplomystus

c)

Mioplosus

12.

What is the second most abundant type of fish in Fossil Lake?

a)

Knightia

b)

Diplomystus

c)

Mioplosus

13.

Knightia is what type of fish?

a)

gar

b)

perch

c)

herring

d)

pike

14.

Mioplosus is what type of fish?

a)

gar

b)

perch

c)

herring

d)

pike

15.

Diplomystus is what type of fish?

a)

gar

b)

perch

c)

herring

d)

pike

16.

What size are Knightia?

a)

Biggest up to 10", most under 6"

b)

Biggest up to 20", most from 6" to 12"

c)

Biggest up to 20", most from 10" to 14"

17.

What size are Diplomystus?

a)

Biggest up to 10", most under 6"

b)

Biggest up to 20", most from 6" to 12"

c)

Biggest up to 20", most from 10" to 14"

18.

What size are Mioplosus?

a)

Biggest up to 10", most under 6"

b)

Biggest up to 20", most from 6" to 12"

c)

Biggest up to 20", most from 10" to 14"

19.

Which Knightia has a shorter body and a deeper belly?

a)

Knightia eocaena

b)

Knightia alta

20.

Which predatory fish has small pointed teeth? It is often found with all of its scales fossilized!

a)

Knightia

b)

Diplomystus

c)

Myoplosus

21.

Which way is this fish under matrix swimming?

a)

to the left <--

b)

to the right -->

c)

upwards

d)

downwards

22.

Which way is this fish under matrix swimming?

a)

to the left <--

b)

to the right -->

c)

upwards

d)

downwards

23.

RARE: Smaller predators, related to modern bluegill/sunfish. Note the spines along it's back. Most are 3-6 inches.

a)

Priscacara

b)

Phareodus

24.

RARE: Large predators related to modern Arowana. Identified by their football-like shape, large round scales, rear located fins and large teeth. Generally from 10-20 inches long.

a)

Priscacara

b)

Phareodus

25.

Rare fish found at Fossil Safari this spring. Note the spines.

a)

Phareodus

b)

Amphipalga

c)

Priscacara

d)

Mioplosus

26.

Large, rare, fish found at Fossil Safari this spring. Note the shape, and rear set fins.

a)

Phareodus

b)

Amphipalga

c)

Priscacara

d)

Mioplosus