Orthoceras (from the Greek, orthos, recto and keras, horn; "straight horn") and Ammonites Plate.
Origin: Erfoud (Morocco)
Size: 40 cm approx.
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Ammonites and orthoceras are extinct fossil cephalopods that represent key milestones in marine palaeobiology during the Palaeozoic and Mesozoic eras. Whilst ammonites have spiral shells with complex sutures, orthoceras are distinguished by their conical, straight shapes; both are essential for biostratigraphic dating. These specimens are highly prized by palaeontological collectors and for decorative purposes, offering an exceptional fossil record of the evolution of marine molluscs.
