first erathem and era of the Phanerozoic eonothem and eon
Factsheet
Etymology
Name formality Formal
Alternate spelling(s) Palaeozoic
Etymology
Name formality Formal
Alternate spelling(s) Palaeozoic
Wikipedia
en.wikipedia.org › wiki › Paleozoic
Paleozoic - Wikipedia
October 21, 2025 - The Paleozoic (/ˌpæli.əˈzoʊ.ɪk, -i.oʊ-, ˌpeɪ-/ PAL-ee-ə-ZOH-ik, -ee-oh-, PAY-; or Palaeozoic) Era is the first of three geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends ...
USGS
usgs.gov › youth-and-education-in-science › paleozoic
Paleozoic | U.S. Geological Survey
Paleozoic (541-252 million years ago) means ‘ancient life.’ The oldest animals on Earth appeared just before the start of this era in the Ediacaran Period, but scientists had not yet discovered them when the geologic timescale was made.
I honestly feel that the early Paleozoic is the one of the most underutilized parts of earth’s history In documentaries
It certainly is. Can you imagine if Walking with Monsters had a full budget and could have done a six episode series instead of rushing through each time period in 10 minutes? First episode in the Burgess Shale or Sirius Passet, showcasing the wonderful life emerging in the Cambrian Explosion. Second episode in the Soom Shale, focused on the Hirnantian Glaciation and Late Ordovician Mass Extinction. Third episode in the Silurian-aged Pozary Formation of Czechia, which preserves both terrestrial plants in the early stages of the Silurian-Devonian Terrestrial Revolution and a eurypterid-dominated coastal marine environment. Fourth episode in the Cleveland Shale, featuring wondrous placoderms, chondrichthyans, actinopterygians, and sarcopterygians, and the Hangenberg Event that wipes them out. Fifth episode in Montceau-Les-Mines, featuring giant insects and some early tetrapods of the Late Carboniferous. Final episode in the Salarevo, with magnificent gorgonopsians, therocephalians, dicynodonts, and parareptiles getting murdered by a mantle plume boring through fossil fuel-rich rocks. More on reddit.com
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December 31, 2022Plat 1 Paleozoic Ojama Deck
I love the effort you put into this, hope to see you soon (I will surely grind the ranks) More on reddit.com
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July 5, 2021Paleozoic Ojama Decklist
It feels weird to not see an Ojama deck without Ojama Trio at best and no Ojama Knight, or Ojama King at worst. More on reddit.com
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July 12, 2021Plat 1 Paleozoic Ojama Deck
This season of Master Duel, I only played Paleozoic Ojamas and I reached Plat 1! I'll give a rundown of how the deck works real quick. The win… More on reddit.com
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July 6, 2021Does Paleozoic mean ancient?
According to the Greek roots, paleo- means "primitive" or "ancient", while zo- means "life." So, the term Paleozoic refers to the ancient life forms present during this time.
study.com
study.com › science courses › earth science 101: earth science
Paleozoic Era | Definition, Events & Timeline - Lesson | Study.com
What ended the Paleozoic Era?
The Paleozoic Era was ended by the mass extinction event known as the Permian Extinction. Theories as to why this event occurred include climate change and a build-up of carbon in the environment.
study.com
study.com › science courses › earth science 101: earth science
Paleozoic Era | Definition, Events & Timeline - Lesson | Study.com
What animals lived in the Paleozoic Era?
Animals that lived in the Paleozoic Era included marine life such as trilobites, fish, and sea sponges. Land life also evolved such as amphibians and reptiles.
study.com
study.com › science courses › earth science 101: earth science
Paleozoic Era | Definition, Events & Timeline - Lesson | Study.com
Videos
38:49
The Paleozoic Era: Life Before the Dinosaurs | Documentary - YouTube
02:29:35
The Paleozoic Era (That We Know Of) Compilation | Lindsay Nikole ...
08:01
What If You Lived in the Paleozoic Era? - YouTube
22:54
Paleozoic Era- Geologic & Biological Evolution and Largest Mass ...
18:22
The Paleozoic Era - YouTube
Encyclopedia Britannica
britannica.com › science › earth science, geologic time & fossils › fossils & geologic time
Paleozoic Era | Description, Climate, & Facts | Britannica
July 26, 1999 - Paleozoic Era, major interval of geologic time that began 538.8 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest ...
University of California Museum of Paleontology
ucmp.berkeley.edu › paleozoic › paleozoic.php
The Paleozoic Era
The Paleozoic is divided into six periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous (in the U.S., this is divided into the Mississippian and Pennsylvanian Periods), and Permian. Most of these names derive from locations where rocks of these ages were first studied.
U.S. National Park Service
nps.gov › articles › 000 › paleozoic-era.htm
Paleozoic Era (U.S. National Park Service)
During the Paleozoic Era (541 to 251.9 million years ago), fish diversified and marine organisms were very abundant. In North America, the Paleozoic is characterized by multiple advances and retreats of shallow seas and repeated continental ...
Merriam-Webster
merriam-webster.com › dictionary › Paleozoic
PALEOZOIC Definition & Meaning - Merriam-Webster
The meaning of PALEOZOIC is of, relating to, originating in, or being an era of geologic history that extends from the beginning of the Cambrian to the close of the Permian and is marked by the culmination of nearly all classes of invertebrates ...
Study.com
study.com › science courses › earth science 101: earth science
Paleozoic Era | Definition, Events & Timeline - Lesson | Study.com
January 19, 2016 - When was the Paleozoic Era? The Paleozoic Era is the longest and oldest era within the Phanerozoic Eon. The Paleozoic definition breaks down the term into its Greek units. Paleo means "primitive" or "ancient", while zo means "life".
Iowa Geological Survey
iowageologicalsurvey.uiowa.edu › iowa-geology › landforms-iowa › paleozoic-plateau
Paleozoic Plateau | Iowa Geological Survey - College of Engineering | The University of Iowa
The Paleozoic strata include fossiliferous rocks of Cambrian, Ordovician, Silurian, and Devonian age which originated as sediments accumulating on sea floors and along coastal margins of tropical marine environments that existed here between 300 and 550 million years ago.
Live Science
livescience.com › planet earth › geology
Paleozoic Era: Facts & Information | Live Science
June 20, 2013 - The Paleozoic Era occurred from about 542 million years ago to 251 million years ago. It was a time of great change on Earth.
Fandom
life-on-our-planet.fandom.com › wiki › Paleozoic
Paleozoic | Life on Our Planet Wiki - Fandom
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University of Waterloo
uwaterloo.ca › earth-sciences-museum › resources › minerals-ontario › southern-ontario-paleozoic-rocks
Southern Ontario Paleozoic rocks | Earth Sciences Museum | University of Waterloo
November 24, 2023 - Overlaying the Canadian Shield southern Ontario are young Paleozoic sedimentary rocks with ages ranging from 540 – 360 million years! Fossil evidence suggests that these sedimentary rocks were formed when this part of the world was situated near the equator.
WSGS
main.wsgs.wyo.gov › geology-of-wyoming › paleontology › paleozoic
WSGS - Paleozoic
Paleozoic Fossil Record (541–252 Ma)
Biology LibreTexts
bio.libretexts.org › bookshelves › introductory and general biology › introductory biology (ck-12) › 5: evolution
5.9: Life During the Paleozoic - Biology LibreTexts
March 6, 2021 - The Paleozoic Era is literally the era of “old life.” It lasted from 544 to 245 million years ago and is divided into six periods. Major events in each period of the Paleozoic Era are described in Figure below.
Museum of the Earth
museumoftheearth.org › early-paleozoic
Early Paleozoic — Museum of the Earth
The corals, brachiopods, and crinoids that dominate the rest of the Paleozoic had only a minor presence in Cambrian oceans, and little or no life was on land.
University of Minnesota
cse.umn.edu › mgs › paleozoic-geology
Paleozoic Geology | Minnesota Geological Survey | College of Science and Engineering
The Paleozoic rock layers are more than 1,500 feet thick in some places and were deposited over a span of 130 million years during the three geologic time periods known as the Cambrian, Ordovician, and Devonian (Fig.
ScienceDirect
sciencedirect.com › science › article › abs › pii › S001282522300199X
Astronomical time scale for the Paleozoic Era - ScienceDirect
July 25, 2023 - The Paleozoic Era saw a series of geologic events covering the Earth system. Continental collisions ended in the latest Precambrian, and Pannotia began to disintegrate (Murphy et al., 2009; Scotese, 2009, Scotese, 2021). The breakup of Pannotia resulted in the formation of new ocean basins such as the Iapetus and Rheic Oceans (Dalziel, 1977), and sustained sea-level transgression occurred (Haq and Schutter, 2008).
Reddit
reddit.com › r/paleontology › i honestly feel that the early paleozoic is the one of the most underutilized parts of earth’s history in documentaries
r/Paleontology on Reddit: I honestly feel that the early Paleozoic is the one of the most underutilized parts of earth’s history In documentaries
December 31, 2022 - In the Paleozoic The earth back then was covered in slime for a billion years before the big Cambrian explosion.
Geosciences LibreTexts
geo.libretexts.org › bookshelves › geology › an introduction to geology (johnson, affolter, inkenbrandt, and mosher) › 8: earth history
8.6: Paleozoic - Geosciences LibreTexts
August 25, 2025 - Since the younger rocks of the Phanerozoic are more common and contain the majority of fossils, the study of this eon yields much greater detail. It is further subdivided into three eras: Paleozoic (“ancient life”), Mesozoic (“middle life”), and Cenozoic (“recent life”).
EBSCO
ebsco.com › research-starters › geology › paleozoic-era
Paleozoic Era | Research Starters | EBSCO Research
The Paleozoic Era, spanning from approximately 544 to 251 million years ago, is the oldest era of the Phanerozoic eon and marks a significant period in Earth's history characterized by diverse and complex life forms.