In the geological timescale, the Llandovery Epoch (from 443.8 ± 1.5 million years ago to 433.4 ± 0.8 million years ago) occurred at the beginning of the...

the Wenlockian) is the second epoch of the Silurian. It is preceded by the Llandovery Epoch and followed by the Ludlow Epoch. Radiometric dates constrain...

work here resulted in the name "Llandovery" being given to rocks of a certain age across the world. The Llandovery epoch is the earliest in the Silurian...

"acanthodian" stem-chondrichthyans from the lower Silurian (late Aeronian, Llandovery Epoch) of China around 439 million years old, making it currently the oldest...

geologic timescale, the Telychian is the third and final age of the Llandovery Epoch of the Silurian Period of the Paleozoic Era of the Phanerozoic Eon...

identifiable placoderms appear in the fossil record during the late Llandovery epoch of the early Silurian. The various groups of placoderms were diverse...

fish known from the Patrick Burn Formation in Scotland, dating to the Llandovery epoch of the Early Silurian period. Long thought of as a "basal anaspid,"...

In the geologic timescale, the Přídolí Epoch (Czech pronunciation: [ˈpr̝̊iːdoliː]) is the uppermost subdivision of the Silurian Period, dated at between...

the Rhuddanian is the first age of the Silurian Period and of the Llandovery Epoch. The Silurian is in the Paleozoic Era of the Phanerozoic Eon. The Rhuddanian...

between the Ordovician and Silurian periods, and marks the base of the Llandovery epoch, on the geologic time scale. Dob's Linn was ratified as the GSSP by...

appearing during the Late Llandovery epoch (around 432 million years ago) and being extinct by the end of the Pridoli epoch. Eurypterus was also restricted...

terrestrial sediments filled the basin. Reef growth started in the Llandovery Epoch, when the sea was 50 to 100 m (160 to 330 ft), and reefs continued...

may venture to follow. At Siccar Point, during the lower Silurian Llandovery epoch around 435 million years ago, thin beds of fine-grained mudstone were...

In the geologic timescale, the Aeronian is an age of the Llandovery Epoch of the Silurian Period of the Paleozoic Era of the Phanerozoic Eon that began...

with considerable erosion before the deposition of sediments in the Llandovery Epoch of the Silurian (444–443 Ma). There was no break in sediments in the...

In the geological timescale, the Ludlow Epoch (from 427.4 ± 0.5 million years ago to 423.0 ± 2.3 million years ago) occurred during the Silurian Period...

sulfide ore deposit is located at the border of the Ordovician to the Llandovery epoch. The ore is covered by an overlying layer of volcanic rhyolites. The...

kokomoensis, the type species, from the Early Pridoli epoch of Indiana; O. pumilus, from the Early Llandovery epoch of Illinois, both from the United States; and...

the latter half of the Llandovery epoch of the Silurian, about 436 million years ago. During the transition from the Llandovery to the Wenlock, the Eugaleaspids...

Birmingham's development. A new species of Lower Silurian (middle Llandovery epoch) phacopsid trilobite, Acaste birminghamensis, was first collected from...

China, and Australia. As of 2019[update], Eohostimella, dated to the Llandovery epoch (444 to 433 million years ago), is one of the earliest fossils that...

their own systems of dividing geologic time into epochs and faunal stages. In New Zealand, these epochs and stages use local place names (mainly Māori in...

Parahughmilleria maria, being known from deposits of Early Silurian (possibly the Llandovery epoch) age and the last members, belonging to the long-lasting and widespread...

early Sandbian Bromide Formation, in Oklahoma, United States. The Llandovery epoch lasted from 443.8 ± 1.5 to 433.4 ± 2.8 mya, and is subdivided into...

southwestern Libya. The unit preserves fossils dating back to the Llandovery epoch of the early Silurian period. The formation has provided the following...

punctatum, known from the Ludlow epoch of England, and the smallest being C. libertyi, known from the Late Llandovery epoch of Canada. Though no other species...

composed of sand-dominant turbidites (lower Ordovician to at least the Llandovery Epoch of the Silurian) which are conformably underlain by the Ribband and...

numeric representation of an intangible property (time). Eon, era, period, epoch, subepoch, age, and subage are the hierarchical geochronologic units. Geochronometry...

each of the four epochs of the Silurian period (444-419 Ma) can be found in Pembrokeshire. Strata dating from the Llandovery Epoch (444-433 Ma) outcrop...

They flourished between the Late Llandovery epoch (around 432 million years ago) to sometime during the Přídolí epoch (418.1 million years ago) of the...