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it has some filled or glued fractures
Impressive and unique partial maxillary bone
Echinoidea - Euechinoidea - Pseudodiadematidae
The scanning electron microscopy reveals that the chemical composition of the sample is mostly homogenous native iron (Fig
30750 - Well Preserved 2.61 Inch Crotalocephalina (Crotalocephalus) gibbus Lower Devonian Trilobite Monte Bolca Fossil Fishes it has some filled orCrotalocephalina 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, Chiozoon, Contracheirurus,
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