Does anyone know what type of fish this is?

[scragry]

Hi

 I recently joined this forum and I need help to identify what type of fish fossil. My dad gave it to me several years ago and don't really know much about it so can someone identify it

[ynot]

Welcome to TFF!

It looks like a knightia from the green river formation in Wyoming.

What is the size?

[Fossildude19]

Welcome to the Forum.

 

What is the size of this fish? 

I agree, ... it may be a Knightia eocaena. 

[Bone guy]

+1 Knightia eocaena

[scragry]

it's 3 1/2 inches long

[ynot]

11 minutes ago, scragry said:

it's 3 1/2 inches long

Then it is a Knightia eocaena.

[scragry]

2 minutes ago, ynot said:

Then it is a Knightia eocaena.

Thank you know I know for sure what type of fish it is

[Max-fossils]

@ynot @Fossildude19 @Bone guy

I've always wondered: what are the differences between Knightia eocenea and K. alta?

[Macrophyseter]

5 minutes ago, Max-fossils said:

I've always wondered: what are the differences between Knightia eocenea and K. alta?

 

As Fossildude19 said in another post,

On 4/4/2018 at 12:49 PM, Fossildude19 said:

Knightia alta  has a much deeper body than K. eocaena, and also has a smaller/shorter caudal fin. 

[Max-fossils]

2 minutes ago, Macrophyseter said:

 

As Fossildude19 said in another post,

Aha, that explains it. Never thought it would be so easy/evident (I was preparing to look up fancy terms for different fish parts )

Thank you! 

[Fossildude19]

2 hours ago, Max-fossils said:

Aha, that explains it. Never thought it would be so easy/evident (I was preparing to look up fancy terms for different fish parts )

Thank you! 

 

You can always download this PDF if you want to look up the fancy terms.   

[Max-fossils]

On 11-6-2018 at 11:54 PM, Fossildude19 said:

 

You can always download this PDF if you want to look up the fancy terms.   

Ah thanks Tim, I'll have to remind myself to bookmark this document when I get back home!

Will be a great read for me.