Bioerosion in shells of modern Nautilus - Taphonomy of deep-marine versus backshore collected Nautilus macromphalus conchs (New Caledonia); 2014)
Seuß B (2014)
Publication Type: Conference contribution, Abstract of lecture
Publication year: 2014
Event location: Zürich
Abstract
During field trips and research cruises into the New Caledonia region numerous shells of Nautilus macromphalus were collected by Royal H. Mapes and colleagues. On six of the shells a bioerosion study was carried out. Specimens: Four of the specimens derive from a backshore collection (AMNH 97753-56) on beaches on the island of Lifou. The shells were initially deposited in the shallow water and transported onto the beaches by waves and currents. Some specimens are heavily encrusted by non-calcareous and calcareous algae, bryozoans, serpulids, etc. and have largely lost their brownish-red color stripes while others are well-preserved and still display sharp reddish-brown color stripes and are only slightly encrusted.The second set of specimens are two deep-water dredged shells (AMNH 55916, -20). One shell derives from a setting half way from Grand Terre and the Isle of Pines and was collected in 395m water depth. The second shell was collected in 598m water depth at the Lansdowne Bank. Both shells are broken and highly abraded. Bioerosion: Bioerosion is defined as "the removal of consolidated mineral or lithic substrate by the direct action of organisms” (Neumann 1966) and is a combination of mechanical and chemical processes that destroy inorganic and biogenic carbonate.
All of the shells show intensive signs of bioerosion. A detailed study was carried out to
investigate the ichnocoenosis, i.e., the assemblages of ichnotaxa.
ff. https://www.researchgate.net/publication/274667678_Bioerosion_in_shells_of_modern_Nautilus_-_Taphonomy_of_deep-marine_versus_backshore_collected_Nautilus_macromphalus_conchs_New_Caledonia_2014
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APA:
Seuß, B. (2014). Bioerosion in shells of modern Nautilus - Taphonomy of deep-marine versus backshore collected Nautilus macromphalus conchs (New Caledonia); 2014). Paper presentation at 9th International Symposium 'Cephalopods present and past', Zürich, CH.
MLA:
Seuß, Barbara. "Bioerosion in shells of modern Nautilus - Taphonomy of deep-marine versus backshore collected Nautilus macromphalus conchs (New Caledonia); 2014)." Presented at 9th International Symposium 'Cephalopods present and past', Zürich 2014.
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