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Fourth period of the Paleozoic Era
The Devonian (/dəˈvoʊni.ən, dɛ-/ də-VOH-nee-ən, deh-) is a geologic period and system of the Paleozoic era during the Phanerozoic eon, spanning 60.7 million
Devonian
Topics referred to by the same term
Devonian is a geologic period and system of the Paleozoic Era. Devonian may also refer to: Devonian Gardens (Calgary), an indoor near Calgary, Canada
Devonian_(disambiguation)
List of ships with the same or similar names
SS Devonian may refer to the following ships: SS Devonian (1900), a British cargo liner torpedoed and sunk in 1917 SS Devonian (1902), an ocean liner
SS_Devonian
Second of the big five mass extinctions
Phanerozoic % Millions of years ago (H) K–Pg Tr–J P–Tr Cap Late D O–S The Late Devonian mass extinction, also known as the Kellwasser event, was a mass extinction
Late_Devonian_mass_extinction
Indoor botanical park in downtown Calgary
Devonian Gardens is a large indoor park and botanical garden located in the downtown core of Calgary, Alberta, Canada. In 2012 a major $37-million renovation
Devonian_gardens
Second epoch of the Devonian period
timescale, the Middle Devonian epoch (from 393.47 ± 0.99 million years ago to 382.31 ± 1.36 million years ago) occurred during the Devonian period, after the
Middle_Devonian
Geological sequence in the Kimberley region of Western Australia
The Balili Conservation Park or Devonian Reef Conservation Park is an Australian protected area and is located in the Kimberley region of Western Australia
Devonian_Reef
First epoch/series of the Devonian
The Early Devonian is the first of three epochs comprising the Devonian period, corresponding to the Lower Devonian series. It lasted from 419.62 ± 1
Early_Devonian
Period of rapid plant and fungal diversification, 428–359 million years ago
The Silurian-Devonian Terrestrial Revolution (SDTR), also known as the Devonian Plant Explosion (DePE) and the Devonian explosion, was a period of rapid
Silurian-Devonian Terrestrial Revolution
Silurian-Devonian_Terrestrial_Revolution
Third period of the Paleozoic Era
Ordovician Period, at 443.1 Ma (million years ago) to the beginning of the Devonian Period, 419.62 Ma. The Silurian is the third and shortest period of the
Silurian
Evolution of fish
time in particular the Devonian, which has been dubbed the "age of fishes" for the many changes during that period. The Late Devonian extinctions played a
Timeline_of_fish_evolution
Fishapods and amphibians of the geological period
Devonian tetrapods include fishapods and amphibians that lived during the Devonian Period. Carboniferous tetrapods – Amphibians and reptiles of the geological
List_of_Devonian_tetrapods
British cargo steamship sunk in 1917
SS Devonian was a British cargo liner that was launched in Ireland in 1900. She was designed to carry a large number of cattle or other livestock, and
SS_Devonian_(1900)
Fifth period of the Paleozoic Era
of the Paleozoic era that spans 60 million years, from the end of the Devonian Period 358.86 Ma (million years ago) to the beginning of the Permian Period
Carboniferous
Extinct genus of indeterminate eukaryote
large macroscopic eukaryote dating from the Late Silurian until the Late Devonian periods. Prototaxites formed large trunk-like structures up to 1 metre
Prototaxites
Geology of Scottish islands
geology of the Orkney islands in northern Scotland is dominated by the Devonian Old Red Sandstone (ORS). In the southwestern part of Mainland, this sequence
Geology_of_Orkney
Class of extinct, Paleozoic arthropods
remained diverse during the following Silurian and early Devonian. During the mid-late Devonian, their diversity strongly declined, being impacted by successive
Trilobite
Clade of lobe-finned fish
spines supporting the fins. Sarcopterygii emerged in the Silurian and early Devonian periods consisting entirely of aquatic species, but today the vast majority
Sarcopterygii
Mass extinction at the end of the Devonian
Hangenberg crisis or end-Devonian extinction, is a mass extinction that occurred at the end of the Famennian, the last stage in the Devonian Period (roughly 358
Hangenberg_event
First era of the Phanerozoic Eon
geologic periods, (from oldest to youngest) Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian. Some geological timescales divide the Paleozoic
Paleozoic
Subphylum of chordates
Silurian and diversified widely in the Devonian. The first tetrapods appeared towards the end of the Devonian, and the first amphibians appeared on land
Vertebrate
Clade of the first four-limbed vertebrates and their descendants
lobe-finned fish (sarcopterygians) around 390 million years ago in the Middle Devonian period. Early tetrapodomorphs were transitional between lobe-finned fishes
Tetrapod
Fossils of many types of water-dwelling animals from the Devonian period are found in deposits in the U.S. state of Michigan. Among the more commonly occurring
Animals_of_Devonian_Michigan
Geological dating dispute of plants
The Great Devonian Controversy began in 1834 when Roderick Murchison disagreed with Henry De la Beche as to the dating of certain petrified plants found
Great_Devonian_Controversy
The list of Early Devonian (419.2 ± 2.8 to 393.3 ± 2.5 million years ago) land plants includes currently known vascular and potentially vascular plants
List of Early Devonian land plants
List_of_Early_Devonian_land_plants
Extinct paraphyletic class of fishes
prehistoric fish known from Paleozoic fossils during the Silurian and the Devonian periods. While their endoskeletons are mainly cartilaginous, their head
Placoderm
Northern landmass that formed part of the Pangaea supercontinent
of the Devonian a narrow seaway formed a barrier where the North Atlantic would later open. Tetrapods evolved from fish in the Late Devonian, with the
Laurasia
Paraphyletic group of tetrapodomorphs
group evolved from elpistostegalian fish in the late Devonian, or possibly in the middle Devonian. They continued to thrive as denizens of swampland and
Ichthyostegalia
Middle Devonian age unit of sedimentary rock
The Marcellus Formation or the Marcellus Shale is a Middle Devonian age unit of sedimentary rock found in eastern North America. Named for a distinctive
Marcellus_Formation
Extinct genus of spiders
is an extinct genus of extinct trigonotarbid arachnids known from the Devonian of western Europe. The genus was first found and described in the Rhynie
Palaeocharinus
Office in Alberta, Canada
Cushman and Wakefield. The podium of Toronto-Dominion Square contains the Devonian Gardens, an indoor botanical park occupying the top level of the retail
Toronto-Dominion_Square
Branch of Brittonic containing Cornish and Breton
The Southwestern Brittonic languages (Breton: Predeneg ar mervent, Cornish: Brythonek Dyghowbarthgorlewin) are the Brittonic Celtic languages spoken in
Southwestern Brittonic languages
Southwestern_Brittonic_languages
Extinct genus of cartilaginous fishes
acanthodian fish from the lower to middle Devonian Scotland. It is among the more primitive of the Devonian acanthodians. Mesacanthus body fossils have
Mesacanthus
Fourth and current eon of the geological timescale
are six periods in the Paleozoic era: Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian. The Cambrian is the first period of the Paleozoic
Phanerozoic
Variety of the English language
Speech example An example of a female with a mostly rhotic accent from Bristol (Sophie Anderson). Problems playing this file? See media help. Speech example
West_Country_English
Genus of jawless fishes
Blieckaspis priscillae is a pteraspidid heterostracan agnathan from the Middle Devonian of North America. Blieckaspis priscillae was originally described by Robert
Blieckaspis
Genus of trilobites
'dikranon', a pitchfork, and 'oura', tail) is a genus of Lower to Middle Devonian odontopleurid trilobites that lived in a shallow sea that lay between Euramerica
Dicranurus
Geologic group in the Appalachian Basin, U.S.
Group is a geologic group in the Appalachian Basin. It dates back to the Devonian period. Also stratigraphically equivalent to the Portage Group. The West
West_Falls_Group
Extinct genus of trilobites
Kolihapeltis is a genus of trilobite that lived from the Early Devonian to the Middle Devonian. Its remains have been found in Africa and Europe. Evolving
Kolihapeltis
Extinct class of corals
Middle Devonian) Order Stauriida Verrill, 1865 (Middle Ordovician – Late Permian) Suborder Arachnophyllina Zhavoronkova, 1972 (Silurian – Middle Devonian) Suborder
Rugosa
Autonomous territory of Denmark
the early tetrapods such as the Acanthostega and Ichthyostega from the Devonian and unique Triassic animals such as the phytosaur Mystriosuchus alleroq
Greenland
Paraphyletic infraphylum of fish
particularly "ostracoderms" reaching an apex of diversity during the Early Devonian, though they subsequently declined, with all non-cyclostome jawless fish
Agnatha
Naamdhew, Penn-Clarke & Harper (2026) reconstruct changes of composition of Devonian brachiopod communities from Gondwana and their biogeography, finding evidence
2026_in_paleontology
Geologic formation in the United States
one of several transgressive events (rising sea levels) during the Late Devonian. The Middlesex is a laminated, dark grey to black formation comprising
Middlesex_Formation
Development of insects from an ancestral crustacean and their subsequent radiation
The first insects were landbound, but about 400 million years ago in the Devonian period one lineage of insects evolved flight, the first animals to do so
Evolution_of_insects
Island in the North Atlantic Ocean
MacGillycuddy's Reeks, is an area of substantially deformed, lightly metamorphosed Devonian-aged rocks. This partial ring of "hard rock" geology is covered by a blanket
Ireland
Early Devonian sedimentary deposit in Scotland
57.33667°N 2.84139°W / 57.33667; -2.84139 The Rhynie chert is a Lower Devonian sedimentary deposit exhibiting extraordinary fossil detail or completeness
Rhynie_chert
Extinct genus of placoderm fish
parts of the world in marine sediments dating from the Middle to Late Devonian. They were medium-to-large fish, with specimens E. pustulosus and E. licharevi
Eastmanosteus
Extinct genus of fishes
ὀστέον ostéon 'bone') is an extinct genus of arthrodire placoderm from the Devonian period. Its fossils have been found throughout Europe and North America
Coccosteus
Rapid decrease in Earth's biodiversity
major Late Devonian extinction was the Hangenberg Event at the Devonian-Carboniferous boundary (D-C, 359 Ma), which brought an end to the Devonian as a whole
Extinction_event
Extinct genus of Cartilaginous fish
is an extinct genus of Chondrichthyian from the Devonian period. It is named for middle to late Devonian-aged Aztec Siltstone of southern Victoria Land
Aztecodus
Clade of insects
the Eumetabola clade originated 390–350 million years ago, in the Late Devonian. The phylogeny of Eumetabola is shown in the cladogram, using the molecular
Eumetabola
Extinct clade of reef-building sponges
sponges common in the fossil record from the Middle Ordovician to the Late Devonian. They can be characterized by their densely layered calcite skeletons lacking
Stromatoporoidea
Extinct order of jawless fishes
agnathan vertebrates known from extensive fossil remains primarily from Early Devonian strata of Europe and North America, and from Upper Silurian Canada. A pteraspidiform
Pteraspidiformes
Extinct Devonian genus of Eurypterida
Silurian to Early Devonian age, from the Wenlock epoch to Emsian stage. There are three known species: the type species J. rhenaniae from Devonian brackish to
Jaekelopterus
Genus of extinct fishes
of large arthrodire ("jointed-neck") fish that existed during the Late Devonian period, about 382–358 million years ago. It was a pelagic fish inhabiting
Dunkleosteus
Extinct genus of fish
Dhanguura is an extinct genus of arthrodire from the Early Devonian of the Murrumbidgee Group in New South Wales, Australia. It contains the single species
Dhanguura
Sedimentary basin of Devonian age in Scotland, UK
The Orcadian Basin is a sedimentary basin of Devonian age that formed mainly as a result of extensional tectonics in northeastern Scotland after the end
Orcadian_Basin
Extinct order of sponges
They lived from the Early Ordovician (Tremadocian stage) to the Late Devonian (Famennian stage), though a few putative fossils have been reported from
Labechiida
Origin and diversification of fish through geologic time
fish) and Sarcopterygii (which includes the lobe-finned fish). During the Devonian period a great increase in fish variety occurred, especially among the
Evolution_of_fish
Extinct suborder of fishes
(of the suborder Brachythoraci), armored fish most diverse during the Devonian. Most are considered to be pelagic (open ocean) long-distance swimmers
Coccosteomorphi
County of England
and Cretaceous geology of the region. The county gives its name to the Devonian geologic period, which includes the slates and sandstones of the north
Devon
Extinct family of jawless fishes
Fossils are known from the Lower Silurian and Middle Devonian of Scotland, and the Upper Devonian of Canada. In particular, Euphanerops is unique in that
Euphaneropidae
Extinct genus of jawless fishes
Middle Devonian of Scotland. Cornovichthys is also classified as a rare agnathan and shares similarities with the fauna found in the Late Devonian Escuminac
Cornovichthys
Unit of sedimentary rock in the US
The Devonian Catskill Formation or the Catskill Clastic Wedge is a unit of mostly terrestrial sedimentary rock found in Pennsylvania and New York. Minor
Catskill_Formation
Genus of trilobites
of proetid trilobite found in Silurian-aged marine strata of Europe and Devonian-aged strata of Gondwana. The generic name commemorates Proetus (Ancient
Proetus_(trilobite)
the diversification dynamics of placoderms throughout the Silurian and Devonian. He et al. (2026) provide new information on the anatomy of Entelognathus
2026_in_paleoichthyology
p. 523-537. Randolph, Amy (2014). "ABSTRACT: A Brief Overview of Upper Devonian Black Shale Natural Gas Well Development in Pennsylvania Year Ending 2013"
Burket_Shale
Mountain building event caused by the collision of Laurentia, Baltica and Avalonia
orogeny encompasses events that occurred from the Ordovician to Early Devonian, roughly 490–390 million years ago (Ma). It was caused by the closure of
Caledonian_orogeny
Extinct order of fishes
extinct armored, jawed fishes of the class Placodermi that flourished in the Devonian period before their sudden extinction, surviving for about 50 million years
Arthrodira
Geologic formation in Indiana, USA
The Muscatatuck Group is a Middle Devonian Aged unit found in Illinois, Indiana and Kentucky. It is characterized by being predominantly made up of Dolomite
Muscatatuck_Group
Extinct genus of corals
colonial rugose coral. Fossils are found in rock formations dating to the Devonian period, about 350 million years ago. Specimens of Hexagonaria can be found
Hexagonaria
Clade of tetrapodomorphs
fishes, it was cladistically redefined to include tetrapods. The Silurian–Devonian Terrestrial Revolution, which led to a rise in global oxygen content and
Elpistostegalia
Geologic formation in Nunavut, Canada
The Fram Formation is an Upper Devonian (Frasnian) sequence of rock strata on Ellesmere Island that came into prominence in 2006 with the discovery in
Fram_Formation
Large carbonate geologic unit in midwestern USA
early to mid Devonian periods. In many States it acts as a reservoir for both hydrocarbons and water. The Clifty Limestone is a Middle Devonian geologic formation
Hunton_Megagroup
Order of crustaceans
the bulk of the remainder. The earliest fossils of the group date to the Devonian. Decapods can have as many as 38 appendages, arranged in one pair per body
Decapod
Extinct genus of jawless fishes
jawless fish. It existed from the Lochkovian to Eifelian epochs of the Devonian period in areas that are now the Americas and Europe. Like other heterostracan
Pteraspis
Extinct genus of tetrapodomorphs from the Devonian
lobe-finned fish which lived in fresh water during the Famennian stage of the Devonian period. The genus name Hyneria is a reference to the village of Hyner,
Hyneria
Hard limestones rock formation in North America
The Onondaga Limestone is a group of hard limestones and dolomites of Devonian age that forms geographic features in some areas in which it outcrops; in
Onondaga_Limestone
Order of arthropods
since Ordovician to mid-Devonian in age. As of 2019, most chasmataspidids (with a total of 9 species) are known from the Devonian strata, while the preceding
Chasmataspidida
Extinct family of fishes
Dunkleosteidae is an extinct family of arthrodire placoderms that lived during the Devonian period. The gigantic apex predator Dunkleosteus terrelli is the best known
Dunkleosteidae
Extant subclass of cephalopods
from straight-shelled orthoceratoids. The ammonoids appeared early in the Devonian period (some 400 million years ago) and became abundant in the Mesozoic
Nautiloid
Highway in Alberta
KML/Alberta Highway 60 KML is not from Wikidata Highway 60, officially named Devonian Way, is a north–south highway west of Edmonton in the Canadian province
Alberta_Highway_60
Lagerstätte formation in the Kimberley, Western Australia
Australia is a Lagerstätte that exhibits exceptional preservation of a Devonian reef community. The formation is named after Gogo Station, a cattle station
Gogo_Formation
Geologic member in the United States
also referred to as the Cleveland Member of the Ohio Shale, is a Late Devonian (Famennian) shale geologic member in the eastern United States. The Cleveland
Cleveland_Shale
Extinct suborder of fishes
within the suborder Brachythoraci, armored fish most diverse during the Devonian. Most are considered to be pelagic (open ocean) long-distance swimmers
Eubrachythoraci
First stage of the Devonian
Early Devonian Epoch. It lasted from 419.62 ± 1.36 million years ago to 413.02 ± 1.91 million years ago. It marked the beginning of the Devonian Period
Lochkovian
Chronological outline of major events in the development of plants
Silurian deposits in Victoria, Australia), had become widespread. By the Devonian Period, the colonization of the land by plants was well under way. The
Timeline_of_plant_evolution
Extinct subclass of cephalopod molluscs
The earliest ammonoids appeared during the Emsian stage of the Early Devonian, around 410-408 million years ago, with the last species vanishing during
Ammonoidea
Extinct species of arthropod
Strudiella devonica is a species of extinct arthropod from the Devonian. It was recovered in the Strud (Gesves, Belgium) environment from the Bois des
Strudiella
Rock composed of fossilized coral
are fragments of a coral reef that was originally deposited during the Devonian period, approximately 350 million years ago. When dry, the stone resembles
Petoskey_stone
Extinct genus of centipede
Crussolum is a genus of Silurian and Devonian centipedes from the US and Britain. It is the oldest known centipede. Crussolum contains one species, C.
Crussolum
Extinct genus of jawless fishes
the late Silurian period until the genus' extinction during the Early Devonian. As with other cyathaspidiforms, individuals of Anglaspis had dorsal and
Anglaspis
Extinct genus of spider-like arachnids
come to mean spider, as in cobweb.[citation needed] An important Early Devonian (about 390 million years ago) fossil example from Gilboa, New York, was
Attercopus
Ongoing extinction event caused by human activity
extinction risk Living fossil Extinction events Major Ordovician–Silurian Late Devonian Permian–Triassic Triassic–Jurassic Cretaceous–Paleogene Holocene Timeline
Holocene_extinction
Extinct genus of tetrapodomorphs
Siltstone in Victoria Land, Antarctica, dating back to the Middle Devonian–Late Devonian. The genus name Aztecia refers to the Aztec Siltstone where the
Aztecia
Extinct genus of vascular plants
described from outcrops of the Early Devonian Campbellton Formation in New Brunswick, Canada and Middle Devonian outcrops in the Voronezh region of Russia
Bitelaria
Geologic formation in the United States
is a geologic formation in the Appalachian Basin. It dates back to the Devonian period. The Rhinestreet is an organic or Black Shale found on from the
Rhinestreet_Formation
Extinct genus of tetrapodomorphs
monospecific genus of extinct sarcopterygian (lobe-finned fish) from the late Devonian Period, about 375 Mya (million years ago), having many features similar
Tiktaalik
Extinct genus of Devonian organisms
Vachonisia is a Devonian marrellomorph known from the Lower Devonian Hunsrück Slate. It grows in a similar fashion to the other Hunsruck marrellomorph
Vachonisia
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