Shark teeth (Elasmobranchii species)
Copyright/attribution: Natural History Museum, London
Copyright/attribution: National Museum of Ireland - Natural History
Description
Notes: Small shark teeth and pellets of pumice, surrounded and cemented by hydrated peroxide of manganese
Citations: Deep Sea Deposits, Report of the Scientific Results of the Exploring Voyage of HMS Challenger 1873-1876. Plate 2, Figure 6.