… basin to Baltica from the early to the mid-Silurian. Our results indicate that anoxic to severely
hypoxic bottom waters dominated during deposition of the Silurian sediments cored in the …

… origins that evolved in a low O2 world may be able to outcompete … motility that all suggest
that ocean oxygen concentrations … color evidence for dominantly hypoxic marine pore waters in …

… the development of an hypoxic sedimentary niche on an … from this study is that whilst exposure
to low O2 (~3–4% PAL) … OMZs are abundant in oceanic settings, especially in areas of …

… in hypoxic conditions similar to the inimical ones which presently occur in habitats such as in
burrows, tropical swamps, ocean … of the incipient high CO2-low O2 atmosphere to low CO2-…

… suggested that only small changes occurred in upper ocean … Using a multi-proxy approach,
we found that low-O2 water (< … developed for the oxic–hypoxic window with the potential to …

… 6,13 may indicate that present-day taxa thrive close to their low … of hypoxic episodes on coral
reefs further suggest differential … temperate fish species include avoidance of hypoxic areas …

… excursion being the strongest short-lived positive d 13 C excursion … However, there are some
species in the Silurian that were … indicate that the phosphate concentration in the ocean, at …

… ), and for individual redox windows (eg, oxic–hypoxic, hypoxic–… -lived low O2 conditions,
and/or the diffusion/advection of … Laurentia during the late Silurian (Ludfordian) extinction event. …

… low-O2 (without specific upper and lower limits of dissolved O2) bottom waters, because “hypoxic”
(… Abrupt global-ocean 559 anoxia during the Late Ordovician–early Silurian detected …

… changes and low O2 on various species of sharks and their … (ie, post Ordovician– Silurian
mass extinction) when O2 levels … of both extreme acidification and hypoxic events (ie, shortterm …