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List of crurotarsan genera

List of crurotarsan genera is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of crurotarsan genera rather than just read about it. In short: This list of crurotarsans is a comprehensive listing of all genera that have ever been included in the clade Crurotarsi, excluding purely vernacular terms. Under some definitions Crurotarsi includes all archosaurs, but this list excludes archosaur genera that are included in Avemetatarsalia (pterosaurs, nonavian dinosaurs, and birds).

List of crurotarsan genera — main illustration
List of crurotarsan genera — illustration

Key takeaways

  • List of crurotarsan genera belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect List of crurotarsan genera to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of List of crurotarsan genera from memory before moving on to harder problems.

Reference excerpt

This list of crurotarsans is a comprehensive listing of all genera that have ever been included in the clade Crurotarsi, excluding purely vernacular terms. Under some definitions Crurotarsi includes all archosaurs, but this list excludes archosaur genera that are included in Avemetatarsalia (pterosaurs, nonavian dinosaurs, and birds). The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomen dubium), or were not formally published (nomen nudum), as well as junior synonyms of more established names, and genera that are no longer considered crurotarsan. Extinct taxa are denoted with a dagger (†). The list contains 662 names, of which approximately 573 are considered either valid crurotarsan genera or nomina dubia.

Scope and terminology There is no official, canonical list of crurotarsan genera, but one of the most thorough attempts can be found on the Crurotarsi section of Mikko Haaramo's Phylogeny Archive. That list has been supplemented with the Paleofile listing for Crocodylomorpha. Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include:

Junior synonym: A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type specimens are later assigned to the same genus, the first to be published (in chronological order) is the senior synonym, and all other instances are junior synonyms. Senior synonyms are generally used, except by special decision of the ICZN, but junior synonyms cannot be used again, even if deprecated. Junior synonymy is often subjective, unless the genera described were both based on the same type specimen. Nomen nudum (Latin for "naked name"): A name that has appeared in print but has not yet been formally published by the standards of the ICZN. Nomina nuda (the plural form) are invalid, and are therefore not italicized as a proper generic name would be. If the name is later formally published, that name is no longer a nomen nudum and will be italicized on this list. Often, the formally published name will differ from any nomina nuda that describe the same specimen. In this case, these nomina nuda will be deleted from this list in favor of the published name. Preoccupied name: A name that is formally published, but which has already been used for another taxon. This second use is invalid (as are all subsequent uses) and the name must be replaced. As preoccupied names are not valid generic names, they will also go unitalicized on this list. Nomen dubium (Latin for "dubious name"): A name describing a fossil with no unique diagnostic features. This can be an extremely subjective and controversial designation and is to be used cautiously.

A

†Acaenasuchus †Acherontisuchus †Acompsosaurus †Acresuchus †Acynodon †Adamanasuchus †Adamantinasuchus †Adzhosuchus †Aegisuchus †Aegyptosuchus †Aeolodon — junior synonym of Steneosaurus †Aetobarbakinoides †Aetosauroides †Aetosaurus †Ahdeskatanka †Agaresuchus †Aggiosaurus †Aigialosuchus †Akanthosuchus †Aktiogavialis †Albertochampsa †Albertosuchus †Aldabrachampsus

Alligator †Alligatorellus †Alligatorium †Allodaposuchus †Allognathosuchus †Almadasuchus †Amargasuchus †Amphicotylus †Anatosuchus †Andrianavoay †Angistorhinopsis †Angistorhinus †Anglosuchus †Antaeusuchus †Antecrocodylus †Anteophthalmosuchus †Anthracosuchus †Apachesuchus †Apatosuchus †Aphaurosuchus †Aplestosuchus †Aprosuchus †Arambourgia †Arambourgisuchus †Araripesuchus †Archaeosuchus — preoccupied by a synapsid, renamed Protosuchus †Arenysuchus †Arganarhinus †Arganasuchus †Argentinosuchus — junior synonym of Stagonolepis †Argochampsa †Arizonasaurus †Armadillosuchus Aromosuchus — junior synonym of Paleosuchus †Arribasuchus — junior synonym of Machaeroprosopus †Artzosuchus †Asiatosuchus †Astorgosuchus †Atacisaurus — junior synonym of Tomistoma †Atlantosuchus †Atoposaurus †Australosuchus †Ayllusuchus

B

†Baharijodon †Balanerodus †Barberenasuchus †Barcinosuchus †Barinasuchus †Baroqueosuchus — junior synonym of Protosuchus †Barreirosuchus †Barrosasuchus †Baru †Baryphracta

†Basutodon †Bathysuchus †Batrachomimus †Batrachotomus †Bayomesasuchus †Baurusuchus †Belodon †Benggwigwishingasuchus †Bergisuchus †Bernissartia †Bombifrons — junior synonym of Crocodylus †Borealosuchus †Bottosaurus †Boverisuchus †Brachiosuchus †Brachychampsa †Brachygnathosuchus †Brachysuchus †Brachytaenius — junior synonym of Geosaurus †Brachyuranochampsa †Brasileosaurus †Brasilosuchus †Bretesuchus †Brillanceausuchus †Brochuchus †Bromsgroveia †Burkesuchus †Bystrowisuchus

C

Caiman

†Caimanoidea — junior synonym of Alligator †Caimanosuchus — junior synonym of Diplocynodon Caigator — junior synonym of Alligator †Caipirasuchus †Calsoyasuchus †Calyptosuchus †Campinasuchus †Candidodon †Capelliniosuchus — once thought to be a metriorhynchid, now known to be a mosasaur †Carandaisuchus †Caririsuchus †Carnufex †Caryonosuchus †Cassissuchus †Centemodon †Centenariosuchus †Ceratosuchus †Cerrejonisuchus †Chalawan Champsa — referred to both Alligator and Caiman †Champse — junior synonym of Crocodylus †Charactosuchus †Charitomenosuchus †Chatterjeea — junior synonym of Shuvosaurus †Chenanisuchus †Chiayusuchus †Chilenosuchus †Chimaerasuchus †Chinatichampsus †Chrysochampsa †Cladeiodon — possible senior synonym of Teratosaurus †Clarencea †Clovesuurdameredeor †Coahomasuchus †Coburgosuchus †Coelosuchus †Colhuehuapisuchus †Collilongus †Coloradisuchus †Colossoemys †Colossosuchus †Comahuesuchus †Confractosuchus †Congosaurus †Coringasuchus †Coronelsuchus †Cricosaurus †Crocodilaemus Crocodylus †Ctenosauriscus Ctenosaurus — preoccupied by extant iguanid, referred to Ctenosauriscus †Culebrasuchus †"Cunampaia" — a nomen dubium; originally considered a phorusrhacid bird, probably a mesoeucrocodylian †Cynodontosuchus Cynosuchus — junior synonym of Caiman †Cystosaurus

D

†Dadagavialis †Dagasuchus †Dakosaurus

†Dakotasuchus †Dasygnathoides †"Dasygnathus" — preoccupied, renamed Dasygnathoides †Decuriasuchus †Deinosuchus †Deltasuchus †Denazinosuchus †Dentaneosuchus †Deslongchampsina †Desmatosuchus †Dianchungosaurus †Diandongosuchus †Dianosuchus †Dibothrosuchus †Dinosuchus †Diplocynodon †Diplocynodus — junior synonym of Diplocynodon †Diplosaurus †Dolichobrachium †Dolichochampsa †Dollosuchoides †Dollosuchus †Dongnanosuchus †Dongusia †Doratodon †Dorbignysuchus †Doswellia †Dromicosuchus †Duerosuchus †Dynamosuchus †Dyoplax †Dyrosaurus †Dzungarisuchus

E

… excerpt ends here. Continue reading the full article.

Illustrations

List of crurotarsan genera: An artist's re-creation of an Batrachotomus kupferzellensis
An artist's re-creation of an Batrachotomus kupferzellensis
List of crurotarsan genera: A yacare caiman (jacaré) from Brazil.
A yacare caiman (jacaré) from Brazil.
List of crurotarsan genera: An artist's reconstruction of Dakosaurus andiniensis.
An artist's reconstruction of Dakosaurus andiniensis.
List of crurotarsan genera: An artist's reconstruction of Elosuchus.
An artist's reconstruction of Elosuchus.
List of crurotarsan genera: A Gavial from India.
A Gavial from India.

Worked examples

Example 1 — a first encounter with List of crurotarsan genera

Start with the simplest possible case. Write down what List of crurotarsan genera claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of crurotarsan genera before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of crurotarsan genera ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of crurotarsan genera

In research
List of crurotarsan genera appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses List of crurotarsan genera in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
List of crurotarsan genera is common in secondary-school and first-year university syllabi. It links to neighbouring topics Archosauriformes, Lists of animal genera (alphabetic), Lists of prehistoric reptiles, so understanding it makes those chapters shorter.
In everyday life
Look for List of crurotarsan genera outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study List of crurotarsan genera in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what List of crurotarsan genera means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain List of crurotarsan genera out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of crurotarsan genera in simple terms?

This list of crurotarsans is a comprehensive listing of all genera that have ever been included in the clade Crurotarsi, excluding purely vernacular terms. Under some definitions Crurotarsi includes all archosaurs, but this list excludes archosaur genera that are included in Avemetatarsalia (pteros…

Why does List of crurotarsan genera matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of crurotarsan genera?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of crurotarsan genera.

Tags

  • Archosauriformes
  • Lists of animal genera (alphabetic)
  • Lists of prehistoric reptiles

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