Spectacular Display - Cyphaspis And Hollardops

 
 
 
 
 
 
 
 
 
 
This is a truly spectacular association of two different species of trilobites from Foum Zguid Morocco. There is a 2.05" long Hollardops mesocristata right next to a long-spined Cyphaspis eberhardiei. This specimen has been impeccably prepared, even free-standing all of the spines of the Cyphaspis. There's only about 1-2% shell restoration on the Hollardops in the form or a small patch of shell on it's head.

There have been a few questions about whether this specimen is a composite due to the fact the shell on the two trilobites is different colors. No, it's a natural association which can be verified both using UV light and under microscope. It's actually not that rare to see big variations in shell color even on a single trilobite. For some reason it's even more prevalent at Foum Zguid. I've seen a number of natural associations for this site with both light and dark colored trilobites right next to each other, without any underlying change in the color of the matrix. I'm not aware of what chemical or physical processes would account for this though.
DETAILS
SPECIES
Cyphaspis eberhardiei & Hollardops merocristata
LOCATION
Foum Zguid, Morocco
SIZE
Hollardops 2.05", Cyphaspsis 1.35" including spines
SUB CATEGORY
ITEM
#5750
GUARANTEE
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.