Asteroceras ammonite fossil. Ammonites, now extinct, were marine invertebrate molluscs with a spiral shell. This specimen is 16 centimetres across and

---

Asteroceras ammonite fossil. Ammonites, now extinct, were marine invertebrate molluscs with a spiral shell. This specimen is 16 centimetres across and dates from the Lower Jurassic (around 200 to 175 million years ago). It was found in Dorset, UK.

---

Size: 2702px × 3235px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ammonite, animal, asteroceras, biological, biology, britain, british, display, dorset, england, english, europe, european, exhibit, extinct, fauna, fossil, historical, history, invertebrate, jurassic, kingdom, london, marine, mollusc, museum, natural, nature, palaeontology, paleontology, prehistoric, prehistory, shell, specimen, spiral, uk, united, wildlife, zoological, zoology