Trilobites were the most successful clade of marine invertebrates during the Cambrian, as
highlighted by Sepkoski's Cambrian Evolutionary Fauna. After the Cambrian they were still …

The late Wenlock is characterized by two global regressive-transgressive eustatic cycles in
association with a double-peaked positive carbon isotope excursion. The onset of the …

The middle Silurian 'big crisis' refers to a graptolite extinction event and faunal turnover at
the onset of a double‐peaked positive carbon isotope excursion. The crisis has been …

Abstract Reefs in the Late Ordovician are usually built up by metazoans, whereas in the
Early and Middle Ordovician microbial reefs are dominating. In the Late Ordovician (Katian) …

Climatically the Silurian was a most unstable period, as it is shows several strong δ13C
excursions, with the Lau excursion being the strongest short-lived positive δ13C excursion …

Small build-ups composed primarily of micrite and benthic skeletal remains, termed 'micro-
bioherms', have been recognized within Silurian strata of eastern and midcontinental United …

Eleven bryozoan species were described from Nors Stenbrott (Gotland, Sweden),
represented by six trepostomes, four cystoporates and one fenestrate. Three genera with …

Hydrocarbon production optimization in Pre-Salt carbonate reservoirs is a main focus for oil
and gas research in Brazil. Stimulation treatment design optimization requires good …

Stable carbon isotope curves are used as a precise stratigraphic tool in the Paleozoic, even
though they are commonly based on shallow-water carbonate record, characterized by low …

Abstract [eng] The mid–late Homerian Age of the Silurian Period was a time of intense
changes in biota, oceanic chemistry, and sea level and is known as the lundgreni extinction …