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Animals of the Ordovician period Paleontology portal; Subcategories ... Pages in category "Ordovician animals" The following 16 pages are in this category, out of 16 ...
Pages in category "Ordovician animals of North America" The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes. A.
The Ordovician–Silurian extinction events may have been caused by an ice age that occurred at the end of the Ordovician Period, due to the expansion of the first terrestrial plants, [54] as the end of the Late Ordovician was one of the coldest times in the last 600 million years of Earth's history.
The Great Ordovician Biodiversification Event (GOBE) was an evolutionary radiation of animal life throughout [1] the Ordovician period, 40 million years after the Cambrian explosion, [2] whereby the distinctive Cambrian fauna fizzled out to be replaced with a Paleozoic fauna rich in suspension feeder and pelagic animals.
Ordovician animals of Oceania (1 C, 1 P) S. Ordovician animals of South America (1 C, 13 P) This page was last edited on 23 January 2023, at 00:00 (UTC). Text is ...
Category: Ordovician life. ... Life on Earth during the Ordovician period. Paleontology portal ... Ordovician animals (7 C, 16 P) B.
The discovery dates to the Ordovician Period, a 41.6-million-year era during which the oceans were dominated by the ancestors of today’s sea urchins and starfish, and a variety of species known ...
The Late Ordovician mass extinction (LOME), sometimes known as the end-Ordovician mass extinction or the Ordovician-Silurian extinction, is the first of the "big five" major mass extinction events in Earth's history, occurring roughly 445 million years ago (Ma). [1]