Lot 909
Museum Quality Natural Grouping Of Four Trilobites. Trilobites were one of the most successful of all groups of arthropods having survived for more than 250 million years before being wiped out in the Permian extinction. Thus trilobites were extinct before there were even dinosaurs. Trilobites appeared over 500 million years ago and may have been so succesful as they were one of the first animals to have eyes. With over 17,000 described species, trilobites come in all shapes and sizes. This museum quality 7 x 5 limestone matrix contains four trilobites from three different species and shapes. The largest and most unusual is a 3 inch long Dicranurus elegans known as the ram's head trilobite because of its long spines extending backward from its head. What makes this trilobite so spevial is that it is complete and has been carefully prepared in the rock with 3D freestanding rams horns as the long 1.25 inch genal spines. The second trilobite is a Zilchouaspis in a climbing position with excellently detailed compound eyes.
The third and fourth trilobites are phacops with one 1.5 inches partially enrolled with it mouth (hypostome) revealed and the other is 1 inch completely enrolled for protection. A great deal of preparation time has gone into keeping the trilobites in their original position just as they were buried in Alnif, Morocco over 375 million years ago.
Add $30.00 for domestic shipping.
Estimated Value $800 - 900.
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| Realized $805 |
