Piece of ± 9 x 10.8 cm, with 1 graptolithes of ± 6.5 x 3 cm. Very difficult pieces to find due to their rarity and quality.
Thoralicystis is a genus of carpoids known only from the Early Ordovician of Morocco. Carpoids are an extinct group that most paleontologists consider the first echinoderms.
Ordovician, Tremadocian
Bou Izargane,Morocco
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