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Paleozoic animals by geological period (6 C) I. Paleozoic invertebrates (16 C, 11 P) V. Paleozoic vertebrates (8 C) Pages in category "Paleozoic animals"
A noteworthy feature of Paleozoic life is the sudden appearance of nearly all of the invertebrate animal phyla in great abundance at the beginning of the Cambrian. The first vertebrates appeared in the form of primitive fish, which greatly diversified in the Silurian and Devonian Periods. The first animals to venture onto dry land were the ...
Palaeozoology, also spelled as Paleozoology (Greek: παλαιόν, palaeon "old" and ζῷον, zoon "animal"), is the branch of paleontology, paleobiology, or zoology dealing with the recovery and identification of multicellular animal remains from geological (or even archeological) contexts, and the use of these fossils in the reconstruction of prehistoric environments and ancient ecosystems.
Fauna II, known as "Paleozoic", described as a "Brachiopod-rich assemblage", accounts for most of the fossils appearing in the Great Ordovician Biodiversification Event, and largely became extinct in the Capitanian mass extinction event and the Permian-Triassic extinction event. [3]
The Cambrian explosion (also known as Cambrian radiation [1] or Cambrian diversification) is an interval of time beginning approximately in the Cambrian period of the early Paleozoic, when a sudden radiation of complex life occurred and practically all major animal phyla started appearing in the fossil record.
An individual plant or animal fossil is, ... Scientists are learning that in real time after discovering an entire Paleozoic-era ecosystem, which had previously been hidden under snow and glacier.
Paleozoic animals of Oceania (7 C, 5 P) S. Paleozoic animals of South America (13 C, 4 P) This page was last edited on 10 January 2024, at 21:55 (UTC). Text is ...
The Cambrian is the first period of the Paleozoic Era and ran from 539 million to 485 million years ago. The Cambrian sparked a rapid expansion in the diversity of animals, in an event known as the Cambrian explosion, during which the greatest number of animal body plans evolved in a single period in