Kayserops tamnrherta
Trilobites Order Phacopida, Subfamily Asteropyginae
Geological Time: Middle Devonian
Size (25.4 mm = 1 inch): Trilobite is 33 mm long by 17 mm wide at spine tips on a 50 by 40 mm matrix
Fossil Site: Foum Ziguid , Morocco
Code: 12101
Price: Sold
 Description:
An elegant example of a member of the Order Phacopida, Subfamily
Asteropyginae with many fine details present. Notice the fine eye
facets present on this specimen. The Asteropyginae recently have
undergone revision. The trilobite called “Kayserops’ in
the fossil trade is actually Metacanthina issoumourensis, a far
more commonly-available member of the Asteropyginae. This specimen
has been named Kayserops tamnrherta by Chatterton et al, with the
species name derived from the Berber name for a small black and
white desert bird. It is only the second example I have been able
to secure and the first prone example I have seen. The repaired
crack detracts but little from the specuimen. Most trilobites are
discovered by cracking open matrix. When the crack involves the
specimen, the halves are glued together and the prepared from the
outside to free the specimen from its matrix tomb.
Reference: Paleontographica Canadiana, No 25, 2006 pp 28-30. |
