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Specimens of graptolites in shale from Abereiddy Bay, Wales, these samples have been dated to the Ordovician period. These samples are ideal for educational use due to the clear visibility of the graptolites but would make an excellent addition to any fossil collection. Specimens are supplied in a 2″ x 2″ white card tray with an information label.
Specimens of graptolites in shale from Abereiddy Bay, Wales, these samples have been dated to the Ordovician period. This shale contains the small, delicate, blade-like fossils of colonial marine creatures known as Graptolites. (phylum Hemichordata). They are known chiefly from the Upper Cambrian through the Lower Carboniferous Their name is derived from Greek graptos & lithos, which roughly translates as "written on rock" as they do have the appearance of being pencil drawn. Their structure is best viewed with a hand lens. Graptolites are globally wide ranging so are used as index fossils. Specimens are supplied in a 2" x 2" white card tray with an information label.