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...

(/ˌkɑːrbəˈnɪfərəs/ KAR-bə-NIF-ər-əs) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period 358.9...

The late Paleozoic icehouse, also known as the Late Paleozoic Ice Age (LPIA) and formerly known as the Karoo ice age, was an ice age that began in the...

ən, dɛ-/ də-VOH-nee-ən, deh-) is a geologic period and system of the Paleozoic era during the Phanerozoic eon, spanning 60.3 million years from the end...

KAYM-; sometimes symbolized Ꞓ) is the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years...

Devonian Period, 419.2 Mya. The Silurian is the shortest period of the Paleozoic Era. As with other geologic periods, the rock beds that define the period's...

Monoplacophora, inarticulate brachiopods and hyoliths. Fauna II, known as "Paleozoic", described as a "Brachiopod-rich assemblage", accounts for most of the...

91°W / 43.5; -91The Driftless Area, also known as Bluff Country and the Paleozoic Plateau, is a topographical and cultural region in the Midwestern United...

-⁠VISH-ən) is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million years from the end of the Cambrian...

beginning of the Triassic Period 251.902 Mya. It is the last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept...

Mesozoic is the middle of the three eras since complex life evolved: the Paleozoic, the Mesozoic, and the Cenozoic. The era began in the wake of the Permian–Triassic...

Beetles are insects that form the order Coleoptera (/koʊliːˈɒptərə/), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases...

†Cephalaspidomorphi Infraphylum Gnathostomata (jawed vertebrates) Class †Placodermi (Paleozoic armoured forms; paraphyletic in relation to all other gnathostomes) Class...

The Paleozoic Museum was a proposed museum of natural history in Manhattan near Central Park. Planning and initial construction for the museum proceeded...

pasture land. The Central Lowlands is a rift valley mainly comprising Paleozoic formations. Many of these sediments have economic significance for it...

divided into three eras: the Paleozoic, Mesozoic and Cenozoic, which are further subdivided into 12 periods. The Paleozoic features the evolution of the...

Cambrian as small filter feeders; they continued to evolve through the Paleozoic, diversifying into many forms. The earliest fish with dedicated respiratory...

unclear. Fossilized insects of enormous size have been found from the Paleozoic Era, including giant dragonfly-like insects with wingspans of 55 to 70 cm...

assembly of Gondwana was a protracted process during the Neoproterozoic and Paleozoic, which remains incompletely understood because of the lack of paleo-magnetic...

and Pensacola Mountains. Antarctica became glaciated during the Late Paleozoic icehouse beginning at the end of the Devonian period (360 Ma), though...

Pacific and Iapetus margins of Gondwana during the Neoproterozoic and Paleozoic". Earth-Science Reviews. 69 (3–4): 249–279. Bibcode:2005ESRv...69..249C...

oldest range of mountains in the country, originating from the end of the Paleozoic Era around 300 million years ago. Their geological composition includes...

sedimentary argillite, dating back to 1.7 billion years ago. During the Paleozoic, western North America lay underneath a shallow sea, which deposited many...

regarding its nature and origin. There are two principal facies of lower Paleozoic rocks in Nevada. In the eastern part of the state, a north-trending fossil-rich...

of Precambrian igneous and metamorphic rocks surrounded by outcrops of Paleozoic and Cretaceous sedimentary strata. At their widest, the exposed Precambrian...

comprise the core of the entire Black Hills uplift. This core is rimmed by Paleozoic, Mesozoic, and Cenozoic sedimentary rocks. The stratigraphy of the Black...

Late Paleozoic group of small forms, likely more closely related to amniotes than Lissamphibia) Subclass Temnospondyli† (diverse Late Paleozoic and early...

area of Montgomery County, Virginia. During the earliest part of the Paleozoic, the continent that would later become North America straddled the equator...

An impact event is a collision between astronomical objects causing measurable effects. Impact events have been found to regularly occur in planetary systems...

the Nazca and Antarctic plates in the South American plate. In the late Paleozoic, 251 million years ago, Chile belonged to the continental block called...