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Aalenian

Index Aalenian

The Aalenian is a subdivision of the Middle Jurassic epoch/series of the geologic timescale that extends from about 174.1 Ma to about 170.3 Ma (million years ago). [1]

56 relations: Aalen, Abbasites, Alaska, Ammonoidea, Ancolioceras, Asthenoceras, Bajocian, Belemnitida, Belemnopsis, Biozone, Bothriospondylus, Bradfordia, Bredyia, Cambridge University Press, Epoch (geology), Euaptetoceras, Eudmetoceras, Euhoploceras, Eurasia, Fontannesia, Fuentelsaz, Genus, Geologic time scale, Germany, Global Boundary Stratotype Section and Point, Graphoceras, Haplopleuroceras, Holcobelus, Homaloteuthis, Hyperlioceras, Ichthyosaur, Jura Mountains, Ludwigia (ammonite), Magnosaurus, Megateuthis gigantea, Middle Jurassic, Otoitidae, Padragosiceras, Paramegateuthis, Praestrigites, Province of Guadalajara, Rhabdobelus, Sachsibelus, Sauropoda, Series (stratigraphy), Spain, Steneosaurus, Stenopterygius, Stephanoceras, Stuttgart, ..., Switzerland, Tethys Ocean, Thalattosuchia, Theropoda, Toarcian, Year. Expand index (6 more) »

Aalen

Aalen is a former Free Imperial City located in the eastern part of the German state of Baden-Württemberg, about east of Stuttgart and north of Ulm.

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Abbasites

Abbasites is an extinct genus of ammonites from the early Middle Jurassic included in the ammonitid family Erycitidae.

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Alaska

Alaska (Alax̂sxax̂) is a U.S. state located in the northwest extremity of North America.

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Ammonoidea

Ammonoids are an extinct group of marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda.

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Ancolioceras

Ancolioceras is an extinct genus of cephalopod belonging to the Ammonite subclass.

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Asthenoceras

Asthenoceras is a genus of ammonoid from the Middle Jurassic (Lower Bajocian) with dwarfish, evolute, smooth, compressed, discoidal, strongly keeled shell.

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Bajocian

In the geologic timescale, the Bajocian is an age or stage in the Middle Jurassic.

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Belemnitida

Belemnitida (or belemnites) is an extinct order of cephalopods which existed during the Mesozoic era, from the Hettangian age of the Lower Jurassic to the Maastrichtian age of the Upper Cretaceous.

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Belemnopsis

--> Belemnopsis is a genus of belemnite, an extinct group of cephalopods.

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Biozone

Biostratigraphic unit or biozones are intervals of geological strata that are defined on the basis of their characteristic fossil taxa.

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Bothriospondylus

Bothriospondylus ("excavated vertebra") is a dubious genus of sauropod dinosaur.

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Bradfordia

Bradfordia is a moderately involute to involute genus included in the ammonoid cephalopod family Oppeliidae, coiled so that the outer whorl encloses most, or much, of the previous, but with a small umbilicus exposing inner whorls.

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Bredyia

Bredyia is a genus of ammonites from the lower part of the Middle Jurassic, found in Europe and North America.

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Cambridge University Press

Cambridge University Press (CUP) is the publishing business of the University of Cambridge.

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Epoch (geology)

In geochronology, an epoch is a subdivision of the geologic timescale that is longer than an age but shorter than a period.

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Euaptetoceras

Euaptetoceras is an evolute hildoceratoid ammonite from the lower Middle Jurassic, included in the family Hammatoceratidae and the subfamility Hammatoceratinae.

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Eudmetoceras

Eudmetoceras is an extinct genus from a well-known class of fossil cephalopods, the ammonites.

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Euhoploceras

Euhoploceras is an extinct genus from a well-known class of fossil cephalopods, the ammonites.

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Eurasia

Eurasia is a combined continental landmass of Europe and Asia.

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Fontannesia

Fontannesia is an ammonoid cephalopod genus with a small to medium size, evolute, discoidal shell that was extant during the Jurassic Period.

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Fuentelsaz

Fuentelsaz is a municipality located in the province of Guadalajara, Castile-La Mancha, Spain.

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Genus

A genus (genera) is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology.

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Geologic time scale

The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time.

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Germany

Germany (Deutschland), officially the Federal Republic of Germany (Bundesrepublik Deutschland), is a sovereign state in central-western Europe.

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Global Boundary Stratotype Section and Point

A Global Boundary Stratotype Section and Point, abbreviated GSSP, is an internationally agreed upon reference point on a stratigraphic section which defines the lower boundary of a stage on the geologic time scale.

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Graphoceras

Graphoceras is an extinct ammonite genus included in the hildoceratacean family Graphoceratidae that lived during the Aalenian and Bajocian stages, Middle Jurassic in what is now Europe, north Africa, and Iran.

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Haplopleuroceras

Haplopleuroceras is a Middle Jurassic ammonite and likely member of the Hildoceratacean family Sonniniidae with which it shares the same sort of ribbing.

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Holcobelus

--> | regnum.

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Homaloteuthis

--> | regnum.

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Hyperlioceras

Hyperlioceras is an extinct genus of cephalopod included in the ammonitid family Graphoceratidae that lived during the Bajocian stage of the Middle Jurassic.

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Ichthyosaur

Ichthyosaurs (Greek for "fish lizard" – ιχθυς or ichthys meaning "fish" and σαυρος or sauros meaning "lizard") are large marine reptiles.

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Jura Mountains

The Jura Mountains (locally; Massif du Jura; Juragebirge; Massiccio del Giura) are a sub-alpine mountain range located north of the Western Alps, mainly following the course of the France–Switzerland border.

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Ludwigia (ammonite)

Ludwigia is an extinct genus of ammonites in the family Graphoceratidae, which lived during the Middle Jurassic.

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Magnosaurus

Magnosaurus (meaning 'large lizard') was a genus of basal tetanuran theropod dinosaur from the Middle Jurassic of England.

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Megateuthis gigantea

Megateuthis gigantea is the largest known belemnite species.

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Middle Jurassic

The Middle Jurassic is the second epoch of the Jurassic Period.

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Otoitidae

Otoidtidae: stephanoceratoid ammonitina from the early Middle Jurassic that begin as cadicones but become more planualte with age; derived from the Hammitoceratidae (Hildoceratoidea), probably through Erycites by way of Abbasites.

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Padragosiceras

Padragosiceras is an extinct genus from a well-known class of fossil cephalopods, the ammonites.

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Paramegateuthis

--> | regnum.

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Praestrigites

Praestrigites is a genus from the Strigoceratidae which is included in the ammonitid superfamily, Haplocerataceae.

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Province of Guadalajara

Guadalajara (from Arabic وادي الحجارة wādi al-ħajāra, "streambed/valley of stones") is a province of central/north-central Spain, in the northern part of the autonomous community of Castile–La Mancha.

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Rhabdobelus

--> | regnum.

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Sachsibelus

Sachsibelus is a genus of belemnite, an extinct group of cephalopods.

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Sauropoda

Sauropoda, or the sauropods (sauro- + -pod, "lizard-footed"), are a clade of saurischian ("lizard-hipped") dinosaurs.

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Series (stratigraphy)

Series are subdivisions of rock layers based on the age of the rock and formally defined by international conventions of the geological timescale.

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Spain

Spain (España), officially the Kingdom of Spain (Reino de España), is a sovereign state mostly located on the Iberian Peninsula in Europe.

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Steneosaurus

Steneosaurus is an extinct genus of teleosaurid crocodyliform from the Early Jurassic to Middle Jurassic (Toarcian to Callovian).

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Stenopterygius

Stenopterygius is an extinct genus of thunnosaur ichthyosaur known from Europe (England, France, Germany, Luxembourg and Switzerland).

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Stephanoceras

Stephanoceras (meaning crown horn) is an extinct genus of Stephanoceratoid ammonite which lived during the Bajocian (Middle Jurassic).

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Stuttgart

Stuttgart (Swabian: italics,; names in other languages) is the capital and largest city of the German state of Baden-Württemberg.

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Switzerland

Switzerland, officially the Swiss Confederation, is a sovereign state in Europe.

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Tethys Ocean

The Tethys Ocean (Ancient Greek: Τηθύς), Tethys Sea or Neotethys was an ocean during much of the Mesozoic Era located between the ancient continents of Gondwana and Laurasia, before the opening of the Indian and Atlantic oceans during the Cretaceous Period.

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Thalattosuchia

Thalattosuchia is the name given to a clade of marine crocodylomorphs from the Early Jurassic to the Early Cretaceous that had a cosmopolitan distribution.

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Theropoda

Theropoda (or, from Greek θηρίον "wild beast" and πούς, ποδός "foot") or theropods are a dinosaur suborder characterized by hollow bones and three-toed limbs.

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Toarcian

The Toarcian is, in the ICS' geologic timescale, an age or stage in the Early or Lower Jurassic.

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Year

A year is the orbital period of the Earth moving in its orbit around the Sun.

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References

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

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