Bioerosion in shells of modern Nautilus - Taphonomy of deep-marine versus backshore collected Nautilus macromphalus conchs (New Caledonia); 2014)

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(Abstract zum Vortrag)


Details zur Publikation

Autorinnen und Autoren: Seuß B
Jahr der Veröffentlichung: 2014


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


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Seuß, Barbara Dr.
Lehrstuhl für Paläoumwelt


Zitierweisen

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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