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Mahogany paper grain — description and returns beneath the overlapping buy card.
• Westphalian of United States (1: Alabama)
Phacopidina
Alethopteridae
The Cobaltoan calcite is a variety of calcite containing Co2+ replacing Ca
In the same matrix the remains of another indeterminate cephalon are observed
07324 - Top Huge OTODUS OBLIQUUS (mackerel shark) Tooth Paleocene Parabarrandia • Westphalian of United StatesIt has some glued fractures. Otudus is a genus belonging to the shark group known as mackerel sharks. It reigned the seas during the Paleocene and the Eocene (60 45 million years ago). It is a quite dominant species in the phosphate quarries in this sector of Morocco. This species has only been described via its teeth and vertebrae. As all the Elasmobranchii, the skeleton has a cartilaginous non osseous nature, what makes difficult its fossilization
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