A Hot-Vent Gastropod with Iron Sulfide Dermal Sclerites

  title={A Hot-Vent Gastropod with Iron Sulfide Dermal Sclerites},
  author={Anders Warén and Stefan Bengtson and Shana K. Goffredi and Cindy L. Van Dover},
  pages={1007 - 1007}
1, C and D). The dominant crystalline mineral phase is pyrite, whereas greigite, the sulfide analog of magnetite, is present in lower proportions and accounts for the ferrimagnetism. The interior of the sclerites is penetrated by a pulp of pedal tissue that extends almost to the tip. Between the pulp and the outer mineralized layers there is a tough, laminated, organic layer, histologically indistinguishable from molluscan conchiolin. The conchiolin is studded with minute (typically about 1 m… 

The making of natural iron sulfide nanoparticles in a hot vent snail

A biologically controlled mineralization mechanism employed by the scaly-foot snail to achieve nanoparticle biomineralization is revealed, through δ34 S measurements and detailed electron-microscopic investigations of both natural scales and scales from the white population artificially incubated in an iron-rich environment.

Iron oxide deposits associated with the ectosymbiotic bacteria in the hydrothermal vent shrimp Rimicaris exoculata

Abstract. The Rimicaris exoculata shrimp is considered as a primary consumer that dominates the fauna of most Mid-Atlantic Ridge (MAR) hydrothermal ecosystems. These shrimps harbour in their gill

Novel Forms of Structural Integration between Microbes and a Hydrothermal Vent Gastropod from the Indian Ocean

Novel forms of structural integration between endo- and episymbiotic microbes and an unusual new species of snail from hydrothermal vents in the Indian Ocean are described, illustrating the great potential of organismal adaptation in chemically and physically challenging deep-sea environments.

Sulfides in Biosystems

Organisms that live on and near the surface of the Earth affect the cycling of sulfur and metals and thus the formation and decomposition of sulfide minerals. Biological mediation of mineral

Exploring the drivers of early biomineralization.

  • R. Wood
  • Environmental Science, Geography
    Emerging topics in life sciences
  • 2018
This data supports the assertion that the calcification was an independent and derived feature that appeared in diverse groups, which was initially acquired with minimal biological control in the highly saturated, high-alkalinity carbonate settings of the Ediacaran, where the carbonate polymorph was further controlled by seawater chemistry.


The Precambrian-Cambrian transition saw the burgeoning of diverse skeletal organisms ("small shelly fossils"), represented in the fossil record by spicules, tubes, tests, conchs, shells, and a

Discovery of New Hydrothermal Activity and Chemosynthetic Fauna on the Central Indian Ridge at 18°–20°S

Two newly discovered hydrothermal vent fields, the Dodo and Solitaire fields, which are located in the Central Indian Ridge (CIR) segments 16 and 15, respectively, are reported, with new findings into the biodiversity and biogeography of vent-endemic ecosystems in the Indian Ocean.



Detoxification of environmental sulfide to sulfane sulfur in the intertidal sipunculid Phascolosoma arcuatum

Abstract The capability of Phascolosoma arcuatum to detoxify sulfide in anaerobic conditions was examined. Sulfane sulfur, which underwent cold cyanolysis, was the major excretory end product of

Biogeography and Ecological Setting of Indian Ocean Hydrothermal Vents

Most organisms found at these Indian Ocean vent fields have evolutionary affinities with western Pacific vent faunas, but a shrimp that ecologically dominates Indian Ocean vents closely resembles its Mid-Atlantic counterpart.

Mid-Ocean Ridge Hydrothermal Fluxes and the Chemical Composition of the Ocean

▪ Abstract Geophysical estimates of mid-ocean ridge axial heat fluxes (2–4 × 1012 W) and of the total hydrothermal flux (9 ± 2 × 1012 W) are well established. Problems arise in calculation of water