Silurian


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Related to Silurian: Devonian

Silurian

1. of, denoting, or formed in the third period of the Palaeozoic era, between the Ordovician and Devonian periods, which lasted for 25 million years, during which fishes first appeared
2. of or relating to the Silures

Silurian

[si′lu̇r·ē·ən]
(geology)
A period of geologic time of the Paleozoic era, covering a time span of between 430-440 and 395 million years ago.
The rock system of this period.
References in periodicals archive ?
The TAI for the Lebork S-1 cuttings from the Lower Silurian to Ordovician/Cambrian are also equivalent to a Ro of 1.
The main objectives are (a) to study the variability of the composition of dolomitized rocks and stoichiometry of the dolomite of deeper (transitional) facies through the Ordovician, Silurian, and Devonian, (b) to reveal the nexus of the studied parameters ([d.
To improve the appearance of Windlass Court and Silurian Park, the council's park department has removed overgrown woodland and the Community Payback Team, formerly known as Community Service, has cleaned up the litter.
The Silurian, which was used in filming of the BBC's Blue Planet series, covered more than 4000 nautical miles between March and October.
The venture proposed by Iberdrola on 1616 acres about 10 miles north of Baker, along highway 127, would have too great an effect on the Silurian Valley's wildlife and historic trail, as per BLM.
There is still much to be learned from, and about, this diminutive Silurian predator that shared the seas with much larger eurypterids, and it is all thanks to Carl Fechko's discovery and generous donation of his unintended catch to the ROM.
But all the Silurian, most of the Devonian and a major part of the Carboniferous and Lower Permian sequences are missing.
Rolfe & Beckett 1984; Kjellesvig-Waering 1986; Polis 1990), all Silurian examples having been recovered from marginal marine lagoonal sediments (Jeram 1998).
ALLIES Peter Capaldi as the 12th Doctor gets help from Silurian Madame Vastra, left
By the end of this year, the company plans to use 30 rigs to drill a total of 60 wells at the Silurian shale gas play, and also at Tabuk along the Red Sea and the Midyan Basin in the north-west.