A FOSSILISED AMMONITE, DACTYLIOCERAS TENUICOSTATUM

comprising a ribbed and coiled shell with preserved in iron pyrites, with the internal chambers infilled with sediment and secondary calcite, raised on a later rectangular stand,

58cm high

Provenance: purchased from Harrods, London, with paper label. Originally from Whitby, Yorkshire, UK.

This ammonite lived in warm Jurassic seas about 170 million years ago and was first categorised by Young and Bird in 1822.