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The cause for the end of the Late Ordovician Glaciation is a matter of intense research, but evidence shows that the deglaciation in the terminal Hirnantian may have occurred abruptly, as Silurian strata marks a significant change from the glacial deposits left during the Late Ordovician. [66]
Pages in category "Ordovician plants" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. C. Casterlorum; Chaetocladus;
In fact, the Hirnantian (also known as the End Ordovician and the Ordovician-Silurian) mass extinction event represents the second largest such event in geologic history. Approximately 85% of marine (sea-dwelling) species died. Only the End-Permian mass extinction was larger. Unlike many smaller extinction events, however, the long-term ...
The papyrus scrolls found in a Herculaneum villa in the 1750s were badly charred by the eruption of Mount Vesuvius in A.D. 79. Since their discovery in the 1700s, researchers have tried many ...
They are the first new fragments of the 1,900-year-old parchment to be found in archaeological excavations in the desert south of Jerusalem in 60 years. Israeli experts announce new Dead Sea ...
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A view of the Dead Sea from a cave at Qumran in which some of the Dead Sea Scrolls were discovered. The rediscovery of what became known as Cave 1 at Qumran prompted the initial excavation of the site from 15 February to 5 March 1949 by the Jordanian Department of Antiquities, led by Gerald Lankester Harding and Roland de Vaux.
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 Silurian Period. . The Llandoverian Epoch follows the massive Ordovician-Silurian extinction events, which led to a large decrease in biodiversity and an opening up of ecosyste