Quick Trilobite ID

[Kane]

I've already posted a picture of this one in the fossil trips section, so my apologies for the duplication. I'm seeking confirmation that this is indeed a Bellacartwrightia whiteleyi. He's a bit beat up, missing eyes and a pygidium (or it may be hidden beneath the matrix), but what leads me to this conditional assumption is the (1) raised spines on the axial lobe, and (2) the longer and somewhat broader genal spines than what one finds on a Greenops. I just want to get the label on this one and put any uncertainty to bed. My thanks for ID assistance!

[doushantuo]

in here i think,use the "document search ""

[doushantuo]

and in here(kloc/lieberman)

[Kane]

Thanks, Ben. I do have access to the Lieberman & Kloc, but I don't quite trust that my ID skills are as honed as some of our trilobite experts here. It's always good to double check! 

[doushantuo]

We all bow to the master,who will have his say,undoubtedly.

Just providing some input,maybe Scott has something post-2014

[doushantuo]

according to Budil(BCz,82-1,2007),some B species have fine pores

[Fossildude19]

@piranha   @GerryK

[fifbrindacier]

I'm not an expert, but i agree you have an acastidae and your ID has great chances to be good.

Here is a photo i took from this site :

[piranha]

Bellacartwrightia sp. from Penn Dixie:

 

figure from:

 

Whiteley, T.E., Kloc, G.J., & Brett, C.E. (2002)
The Trilobites of New York.
Cornell University Press, 380 pp.

 

 

[Kane]

Thanks, Scott! Good to know my hunch was correct. 

 

And... 

[Malcolmt]

12 hours ago, Kane said:

I've already posted a picture of this one in the fossil trips section, so my apologies for the duplication. I'm seeking confirmation that this is indeed a Bellacartwrightia whiteleyi. He's a bit beat up, missing eyes and a pygidium (or it may be hidden beneath the matrix), but what leads me to this conditional assumption is the (1) raised spines on the axial lobe, and (2) the longer and somewhat broader genal spines than what one finds on a Greenops. I just want to get the label on this one and put any uncertainty to bed. My thanks for ID assistance!

 

Looks quite fragile if you attempt to prep it. I would be infiltrating some very dilute vinac or butvar solution first so as to preserve as much of the remaining exoskeleton as possible. Do not put water on it, if it gets under the cracked and already exposed exo skeleton you will loose even more bits. Even though banged up this is a rare find for Penn Dixie.