Knobbly Tuberculate Ammonite Fossil Replica

A chunky ammonite with heavy ornament. The preview shows strong straight ribs radiating across a squarish whorl, rows of rounded knobs (tubercles) along the outer shoulders, and a small hole through the centre of the coil. It is one solid piece, about 6.6 cm across and 2.1 cm thick, the thickest of the full ammonites in the set. Many ammonites carried ribs, knobs and spines like these, especially in the Cretaceous. Acanthoceras, from the early Late Cretaceous about 100 to 94 million years ago,…

♥ 0