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1. Silurian: The Silurian is a geological period believed by secular paleontologists to be between 443 and 417 million years ago. The fossil record shows that water-based life forms during the Silurian period included coral reefs, jawless fish, and freshwater fish. [100%] 2023-03-12 [Geologic Systems]
2. Silurian: Silurian, in geology, a series of strata which is here understood to include those Palaeozoic rocks which lie above the Ordovician and below the Devonian or Old Red Sandstone, viz. Lapworth), Wenlockian and Ludlovian groups of Great Britain with their ... [100%] 2022-09-02
3. Silurian: The Silurian period is an interval of about 28 million years defined on the geologic timescale as spanning roughly from 444 to 416 million years ago (mya) and lying between the earlier Ordovician period and the later Devonian period. As ... [100%] 2023-02-04
4. Silurian: Los Silurians o Silurianos en español, son una especie de reptiles humanoides ficticia perteneciente a la longeva serie británica de ciencia ficción Doctor Who. La especie apareció por primera vez en la serie en el serial de 1970 Doctor Who and ... [100%] 2023-12-25
5. Silurian: The Silurian (/sɪˈljʊəriːən, saɪ-/ sih-LURE-ee-ən, sy-) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at 443.8 million years ago (Mya), to the beginning of the Devonian Period ... (Third period of the Paleozoic Era, 443–419 million years ago) [100%] 2023-12-16 [Silurian] [Geological periods]...
6. Silurian: The Silurian (/sɪˈljʊəriən, saɪ-/ sih-LURE-ee-ən, sy-) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at 443.8 million years ago (Mya), to the beginning of the Devonian Period ... (Earth) [100%] 2023-11-04 [Silurian] [Geological periods]...
7. Silurian hypothesis: The Silurian hypothesis is a thought experiment which assesses modern science's ability to detect evidence of a prior advanced civilization, perhaps several million years ago. In a 2018 paper, Adam Frank, an astrophysicist at the University of Rochester, and ... (Thought experiment to assess ability to detect evidence of a prior advanced civilization) [70%] 2023-12-15 [Hypotheses] [Pseudoarchaeology]...
8. Silurian hypothesis: The Silurian hypothesis is a thought experiment, which assesses modern science's ability to detect evidence of a prior advanced civilization, perhaps several million years ago. The most probable clues for such a civilization could be carbon, radioactive elements or ... (Thought experiment to assess ability to detect evidence of a prior advanced civilization) [70%] 2024-12-29 [Hypotheses] [Thought experiments]...
9. Timeline of Silurian research: This timeline of Silurian research is a chronological listing of events in the history of geology and paleontology focused on the study of Earth during the span of time lasting from 443.4–419.2 million years ago; the Silurian ... (None) [50%] 2023-04-02 [Silurian] [Paleontology timelines]...
10. Silurian and Sea Devil: The Silurians and Sea Devils are two fictional related ancient species created by Malcolm Hulke for the long-running British science fiction television series Doctor Who. The Silurians are a race of scientifically advanced reptilian humanoids from the dawn of ... (Fictional race from the television series Doctor Who) [50%] 2025-05-08 [Doctor Who aliens] [Fictional reptilians]...
11. Wenlock (Silurian): The Wenlock (sometimes referred to as the Wenlockian) is the second series of the Silurian. It is preceded by the Llandovery series and followed by the Ludlow. (Earth) [70%] 2024-01-09 [Silurian geochronology]
12. Ordovician–Silurian extinction events: The Ordovician–Silurian extinction events, also known as the Late Ordovician mass extinction, are collectively the second-largest of the five major extinction events in Earth's history in terms of percentage of genera that became extinct. Extinction was global ... (Earth) [50%] 2024-01-01 [Extinction events] [Late Ordovician extinctions]...
13. Silurian-Devonian Terrestrial Revolution: The Silurian-Devonian Terrestrial Revolution, also known as the Devonian Plant Explosion (DePE) and the Devonian explosion, was a period of rapid colonization, diversification and radiation of land plants and fungi on dry lands that occurred 428 to 359 million ... (Period of rapid plant and fungal diversification, 428–359 million years ago) [50%] 2024-08-31 [Silurian life] [Devonian life]...