We are working to restore the Unionpedia app on the Google Play Store
OutgoingIncoming
🌟We've simplified our design for better navigation!
Instagram Facebook X LinkedIn

Early Cretaceous

Index Early Cretaceous

The Early Cretaceous (geochronological name) or the Lower Cretaceous (chronostratigraphic name) is the earlier or lower of the two major divisions of the Cretaceous. [1]

Table of Contents

  1. 60 relations: Ammonoidea, Archaefructus, Arctic Alaska-Chukotka terrane, Basalt, Berriasella jacobi, Bird, Broken Ridge, Calpionellid, Canada Basin, Carcharodontosauridae, Central American Seaway, Ceratopsia, Chronostratigraphy, Chronozone, Coelurosauria, Cretaceous, Dinosaur, Early Jurassic, Eutheria, First appearance datum, Flowering plant, Foraminifera, France, Geochronology, Geologic time scale, Gondwana, Hautes-Alpes, Hikurangi Plateau, Iberian Peninsula, International Commission on Stratigraphy, Kerguelen Plateau, Kingak Shale, Kula Plate, Labrador Sea, Large igneous province, Large low-shear-velocity provinces, Late Jurassic, Laurentia, Liaodong Peninsula, Manihiki Plateau, Metatheria, Mid-Atlantic Ridge, Monotreme, Mont Risoux, Newfoundland and Labrador, North America, Ontong Java Plateau, Pacific Plate, Panthalassa, Paraná and Etendeka traps, ... Expand index (10 more) »

  2. Cretaceous geochronology
  3. Geological epochs

Ammonoidea

Ammonoids are extinct spiral shelled cephalopods comprising the subclass Ammonoidea.

See Early Cretaceous and Ammonoidea

Archaefructus

Archaefructus is an extinct genus of herbaceous aquatic seed plants with three known species.

See Early Cretaceous and Archaefructus

Arctic Alaska-Chukotka terrane

The Arctic Alaska-Chukotka terrane (AAC) is a microcontinent that today encompasses the North Slope, Brooks Range, and Seward Peninsula of northern Alaska; the Chukotka Peninsula, New Siberia Islands, and Wrangel Island in eastern Siberia; and the continental shelves of the Bering, Beaufort, and Chukchi seas.

See Early Cretaceous and Arctic Alaska-Chukotka terrane

Basalt

Basalt is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon.

See Early Cretaceous and Basalt

Berriasella jacobi

Berriasella jacobi is an extinct species of ammonite from the late Jurassic and early Cretaceous.

See Early Cretaceous and Berriasella jacobi

Bird

Birds are a group of warm-blooded vertebrates constituting the class Aves, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

See Early Cretaceous and Bird

Broken Ridge

The Broken Ridge or Broken Plateau is an oceanic plateau in the south-eastern Indian Ocean.

See Early Cretaceous and Broken Ridge

Calpionellid

Calpionellids are an extinct group of eukaryotic single celled organisms of uncertain affinities.

See Early Cretaceous and Calpionellid

Canada Basin

The Canada Basin is a deep oceanic basin within the Arctic Ocean.

See Early Cretaceous and Canada Basin

Carcharodontosauridae

Carcharodontosauridae (carcharodontosaurids; from the Greek καρχαροδοντόσαυρος, carcharodontósauros: "shark-toothed lizards") is a group of carnivorous theropod dinosaurs.

See Early Cretaceous and Carcharodontosauridae

Central American Seaway

The Central American Seaway (also known as the Panamanic Seaway, Inter-American Seaway and Proto-Caribbean Seaway) was a body of water that once separated North America from South America.

See Early Cretaceous and Central American Seaway

Ceratopsia

Ceratopsia or Ceratopia (or; Greek: "horned faces") is a group of herbivorous, beaked dinosaurs that thrived in what are now North America, Europe, and Asia, during the Cretaceous Period, although ancestral forms lived earlier, in the Jurassic.

See Early Cretaceous and Ceratopsia

Chronostratigraphy

Chronostratigraphy is the branch of stratigraphy that studies the ages of rock strata in relation to time.

See Early Cretaceous and Chronostratigraphy

Chronozone

A chronozone or chron is a unit in chronostratigraphy, defined by events such as geomagnetic reversals (magnetozones), or based on the presence of specific fossils (biozone or biochronozone).

See Early Cretaceous and Chronozone

Coelurosauria

Coelurosauria (from Greek, meaning "hollow-tailed lizards") is the clade containing all theropod dinosaurs more closely related to birds than to carnosaurs.

See Early Cretaceous and Coelurosauria

Cretaceous

The Cretaceous is a geological period that lasted from about 145 to 66 million years ago (Mya).

See Early Cretaceous and Cretaceous

Dinosaur

Dinosaurs are a diverse group of reptiles of the clade Dinosauria.

See Early Cretaceous and Dinosaur

Early Jurassic

The Early Jurassic Epoch (in chronostratigraphy corresponding to the Lower Jurassic Series) is the earliest of three epochs of the Jurassic Period. Early Cretaceous and early Jurassic are geological epochs.

See Early Cretaceous and Early Jurassic

Eutheria

Eutheria (from Greek εὐ-, 'good, right' and θηρίον, 'beast'), also called Pan-Placentalia, is the clade consisting of placental mammals and all therian mammals that are more closely related to placentals than to marsupials.

See Early Cretaceous and Eutheria

First appearance datum

First appearance datum (FAD) is a term used by geologists and paleontologists to designate the first appearance of a species in the geologic record.

See Early Cretaceous and First appearance datum

Flowering plant

Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae, commonly called angiosperms.

See Early Cretaceous and Flowering plant

Foraminifera

Foraminifera (Latin for "hole bearers"; informally called "forams") are single-celled organisms, members of a phylum or class of Rhizarian protists characterized by streaming granular ectoplasm for catching food and other uses; and commonly an external shell (called a "test") of diverse forms and materials.

See Early Cretaceous and Foraminifera

France

France, officially the French Republic, is a country located primarily in Western Europe.

See Early Cretaceous and France

Geochronology

Geochronology is the science of determining the age of rocks, fossils, and sediments using signatures inherent in the rocks themselves.

See Early Cretaceous and Geochronology

Geologic time scale

The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth.

See Early Cretaceous and Geologic time scale

Gondwana

Gondwana was a large landmass, sometimes referred to as a supercontinent.

See Early Cretaceous and Gondwana

Hautes-Alpes

Hautes-Alpes (Auts Aups; Upper Alps) is a department in the Provence-Alpes-Côte d'Azur region of Southeastern France.

See Early Cretaceous and Hautes-Alpes

Hikurangi Plateau

The Hikurangi Plateau is an oceanic plateau in the South Pacific Ocean east of the North Island of New Zealand.

See Early Cretaceous and Hikurangi Plateau

Iberian Peninsula

The Iberian Peninsula (IPA), also known as Iberia, is a peninsula in south-western Europe, defining the westernmost edge of Eurasia.

See Early Cretaceous and Iberian Peninsula

International Commission on Stratigraphy

The International Commission on Stratigraphy (ICS), sometimes unofficially referred to as the "International Stratigraphic Commission", is a daughter or major subcommittee grade scientific daughter organization that concerns itself with stratigraphical, geological, and geochronological matters on a global scale.

See Early Cretaceous and International Commission on Stratigraphy

Kerguelen Plateau

The Kerguelen Plateau, also known as the Kerguelen–Heard Plateau, is an oceanic plateau and large igneous province (LIP) located on the Antarctic Plate, in the southern Indian Ocean.

See Early Cretaceous and Kerguelen Plateau

Kingak Shale

The Kingak Shale is a geologic formation in Alaska.

See Early Cretaceous and Kingak Shale

Kula Plate

The Kula Plate was an oceanic tectonic plate under the northern Pacific Ocean south of the Near Islands segment of the Aleutian Islands.

See Early Cretaceous and Kula Plate

Labrador Sea

The Labrador Sea (mer du Labrador; Labradorhavet) is an arm of the North Atlantic Ocean between the Labrador Peninsula and Greenland.

See Early Cretaceous and Labrador Sea

Large igneous province

A large igneous province (LIP) is an extremely large accumulation of igneous rocks, including intrusive (sills, dikes) and extrusive (lava flows, tephra deposits), arising when magma travels through the crust towards the surface.

See Early Cretaceous and Large igneous province

Large low-shear-velocity provinces

Large low-shear-velocity provinces (LLSVPs), also called large low-velocity provinces (LLVPs) or superplumes, are characteristic structures of parts of the lowermost mantle, the region surrounding the outer core deep inside the Earth.

See Early Cretaceous and Large low-shear-velocity provinces

Late Jurassic

The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 161.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata. Early Cretaceous and Late Jurassic are geological epochs.

See Early Cretaceous and Late Jurassic

Laurentia

Laurentia or the North American Craton is a large continental craton that forms the ancient geological core of North America.

See Early Cretaceous and Laurentia

Liaodong Peninsula

The Liaodong or Liaotung Peninsula is a peninsula in southern Liaoning province in Northeast China, and makes up the southwestern coastal half of the Liaodong region.

See Early Cretaceous and Liaodong Peninsula

Manihiki Plateau

The Manihiki Plateau is an oceanic plateau in the south-west Pacific Ocean.

See Early Cretaceous and Manihiki Plateau

Metatheria

Metatheria is a mammalian clade that includes all mammals more closely related to marsupials than to placentals.

See Early Cretaceous and Metatheria

Mid-Atlantic Ridge

The Mid-Atlantic Ridge is a mid-ocean ridge (a divergent or constructive plate boundary) located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world.

See Early Cretaceous and Mid-Atlantic Ridge

Monotreme

Monotremes are mammals of the order Monotremata.

See Early Cretaceous and Monotreme

Mont Risoux

Mont Risoux (or Grand Risoux) is a large wooded crest of the Jura Mountains, located between France and Switzerland.

See Early Cretaceous and Mont Risoux

Newfoundland and Labrador

Newfoundland and Labrador (Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region.

See Early Cretaceous and Newfoundland and Labrador

North America

North America is a continent in the Northern and Western Hemispheres.

See Early Cretaceous and North America

Ontong Java Plateau

The Ontong Java Plateau (OJP) is a massive oceanic plateau located in the southwestern Pacific Ocean, north of the Solomon Islands.

See Early Cretaceous and Ontong Java Plateau

Pacific Plate

The Pacific Plate is an oceanic tectonic plate that lies beneath the Pacific Ocean.

See Early Cretaceous and Pacific Plate

Panthalassa

Panthalassa, also known as the Panthalassic Ocean or Panthalassan Ocean (from Greek πᾶν "all" and θάλασσα "sea"), was the vast superocean that encompassed planet Earth and surrounded the supercontinent Pangaea, the latest in a series of supercontinents in the history of Earth.

See Early Cretaceous and Panthalassa

Paraná and Etendeka traps

The Paraná-Etendeka Large Igneous Province (PE-LIP) (or Paraná and Etendeka Plateau; or Paraná and Etendeka Province) is a large igneous province that includes both the main Paraná traps (in Paraná Basin, a South American geological basin) as well as the smaller severed portions of the flood basalts at the Etendeka traps (in northwest Namibia and southwest Angola).

See Early Cretaceous and Paraná and Etendeka traps

Prudhoe Bay Oil Field

Prudhoe Bay Oil Field is a large oil field on Alaska's North Slope.

See Early Cretaceous and Prudhoe Bay Oil Field

Rhyolite

Rhyolite is the most silica-rich of volcanic rocks.

See Early Cretaceous and Rhyolite

Shublik Formation

The Shublik Formation is a geologic formation in Alaska.

See Early Cretaceous and Shublik Formation

Sinodelphys

Sinodelphys is an extinct mammal from the Early Cretaceous, estimated to be 125 million years old.

See Early Cretaceous and Sinodelphys

Spinosauridae

Spinosauridae (or spinosaurids) is a clade or family of tetanuran theropod dinosaurs comprising ten to seventeen known genera.

See Early Cretaceous and Spinosauridae

Steropodon

Steropodon is a genus of prehistoric platypus-like monotreme, or egg-laying mammal.

See Early Cretaceous and Steropodon

Svalbard

Svalbard, previously known as Spitsbergen or Spitzbergen, is a Norwegian archipelago in the Arctic Ocean.

See Early Cretaceous and Svalbard

Triassic

The Triassic (sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago (Mya), to the beginning of the Jurassic Period 201.4 Mya.

See Early Cretaceous and Triassic

Tribosphenida

Tribosphenida is a group (infralegion) of mammals that includes the ancestor of Hypomylos, Aegialodontia and Theria (the last common ancestor of marsupials and placentals plus all of its descendants).

See Early Cretaceous and Tribosphenida

Yixian Formation

The Yixian Formation (formerly transcribed as Yihsien Formation) is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans the late Barremian and early Aptian stages of the Early Cretaceous.

See Early Cretaceous and Yixian Formation

See also

Cretaceous geochronology

Geological epochs

References

[1] https://en.wikipedia.org/wiki/Early_Cretaceous

Also known as Early Cretaceous epoch, Early Cretaceous period, Lower Cretaceous, Lower Cretaceous Epoch, Lower Cretaceous period, The Early Cretaceous.

, Prudhoe Bay Oil Field, Rhyolite, Shublik Formation, Sinodelphys, Spinosauridae, Steropodon, Svalbard, Triassic, Tribosphenida, Yixian Formation.