Jump to content

Would like specific rodent ID help


Miatria

Recommended Posts

I am interested in a specific ID of this piece of rodent mandible.  When I found it I immediately assumed it was mouse but then I decided maybe it is a bit too big for a mouse so I started studying small rodent dentition charts and was amazed at all the variations in the molars.  Another hour in the internet rabbit hole (no pun intended).  

7/8" in length (22mm), found in Florida's Peace River in a mix of Miocene and Pleistocene material.  

rodentjaw.jpg

Zookeeperfossils.com

Link to comment
Share on other sites

looks slightly arvicolid

edit:Now why did I say that when HarryPristis will prove me wrong anyway:P

ondatrid?

 

 

 

Link to comment
Share on other sites

Yes, I think it could be ondatra, muskrat. Someone sent me down that path.  There was as suggestion of neofiber which could fit the small size.

Zookeeperfossils.com

Link to comment
Share on other sites

IV. :)

 

591b39f045b92_RodentiaeandLeporidae.thumb.jpg.9811da62a9f24a2fcc00973ec6399efe.jpg

excerpt from E. Schmid. 1972. Atlas of Animal Bones. For Prehistorians, Archaeologists and Quaternary Geologists. Elsevier, New York.

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

Link to comment
Share on other sites

I think I might be able to help you out with small mammal literature.

A lot of what i have is probably NOT in Fruitbat's library,BTW

 

 

 

Link to comment
Share on other sites

I do best with fossils from species that I've already found (and have had the opportunity to both see up close and been motivated to do some research). It looks a lot like one of the pieces I found in the Peace last December which turned out to be from the Round-tailed Muskrat, Neofiber alleni (aka Florida Water Rat). Have a look at my find for comparison:

 

http://www.thefossilforum.com/index.php?/topic/70700-peace-river-again/&do=findComment&comment=743695

 

Here's a link to the FLMNH page for this species so you can get a look at more imagery and information:

 

https://www.floridamuseum.ufl.edu/florida-vertebrate-fossils/species/neofiber-alleni/

 

Cheers.

 

-Ken

 

 

Link to comment
Share on other sites

 

If I put your specimen in mirror image and compare it with the specimen in question, the similarity between the two is very good. I think you are right with Neofiber alleni, Ken. :)

 

1719299077.jpg.710be3a997b256f8f7645b055ab82711.jpgrodentjaw.jpg.a76d8a6d803c687c93d1e10452b46210.jpg.9d3bb5c44166bdfb6ef6ac2bd4f78a43.jpg

 

592627eb38ab1_Neofiberalleni.jpg.dd5115d7b5c2257a57afdb31ef6be5e1.jpg

 

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

Link to comment
Share on other sites

6 minutes ago, abyssunder said:

I think you are right with Neofiber alleni, Ken. :)

 

Score one for the novice! :P

 

I'm much better at posing potentially correct identifications when it is something I've come across personally.

 

 

Cheers.

 

-Ken

Link to comment
Share on other sites

I agree! :)

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...