21561 - Top Well Prepared "Flying" 2.83 Inch Crotalocephalina gibbus Lower Devonian Palaeocarcharodon pathologically deformed Mexico (3)
Yard notes & kiln story
Description
Mexico (3)
the cephalic spine during the preparation process has been fractured and glued again
United States (3: Illinois
It is a small piece which deserves to be in any collection
from the Aoufous Formation and Ifezouane Formation (Kem Kem Basin
21561 - Top Well Prepared "Flying" 2.83 Inch Crotalocephalina gibbus Lower Devonian Palaeocarcharodon pathologically deformed Mexico (3)Nice and well prepared specimen. Crotalocephalina sp, Pibyl and Vanek 1964 (trilobite) Trilobita Phacopida Cheiruridae Parent taxon: Cheiruridae according to P. A. Jell and J. M. Adrain 2002 See also Sepkoski 2002 Sister taxa: Acanthoparyphinae, Anasobella, Ancyginaspis, Arcticeraurinella, Areia, Areiaspis, Borealaspis, Bornholmaspis, Ceraurinium, Ceraurinus, Cerauroides, Cerauromeros, Cerauropeltis, Ceraurus, Chacomurus, Cheirurinae, Cheirurus,