Euarchonta

Information about Euarchonta

Euarchontans
Fossil range: Late Cretaceous - Recent
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Madras Treeshrew (Anathana ellioti)

Madras Treeshrew (Anathana ellioti)
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Infraclass:Eutheria
Superorder:Euarchontoglires
(unranked)Euarchonta
Orders
 Dermoptera
 Scandentia
 Plesiadapiformes (extinct)
 Primates
The Euarchonta are a superorder of mammals containing four orders: the Dermoptera or colugos, the Scandentia or treeshrews, the extinct Plesiadapiformes, and the Primates.

The term "Euarchonta" (means "true ancestors") first appeared in the general scientific literature in 1999, when molecular evidence suggested that the morphology-based Archonta be trimmed down to exclude Chiroptera. Major DNA sequence analyses of predominantly nuclear sequences (Murphy et al., 2001) support the Euarchonta hypothesis, while a major study investigating mitochondrial sequences supports a different tree topology (Arnason et al, 2002). A study investigating retrotransposon presence/absence data has claimed strong support for Euarchonta (Kriegs et al., 2007). However, the morphological data, together with criticism of the reliability of the molecular data, continues to call into question whether or not bats should be excluded from Archonta. In particular, some researchers believe that bats are diphyletic, and that some bats Megachiroptera are closely related to primates (see Flying primates theory).

Some interpretations of the molecular data link Primates and Dermoptera in a clade known as Primatomorpha, which is the sister of Scandentia. In some the Dermoptera are a member of the primates rather than a sister. Other interpretations link the Dermoptera and Scandentia together in a group called Sundatheria as the sister group of the primates. Together, the three are known as Euarchonta, the "True Founders".

Euarchonta and Glires together form the Euarchontoglires, one of the four Eutherian clades.

Euarchontoglires
Glires

Rodentia (rodents)


 Lagomorpha (rabbits, hares, pikas)


Euarchonta

Scandentia (treeshrews)

Dermoptera (flying lemurs)

†Plesiadapiformes


 Primates





References

Late Cretaceous (100mya - 65mya) refers to the second half of the Cretaceous Period, named after the famous white chalk cliffs of southern England, which date from this time. Rocks deposited during the Late Cretaceous Period are referred to as the Upper Cretaceous Series.
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Anathana
M. W. Lyon, 1913

Species: A. ellioti

Binomial name
Anathana ellioti
(Waterhouse, 1850)[3]
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Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Chordata
Bateson, 1885

Typical Classes

See below

Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Mammalia
Linnaeus, 1758

Subclasses & Infraclasses
  • Subclass †Allotheria*
  • Subclass Prototheria
  • Subclass Theria

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Eutheria

Orders[1]
  • Bobolestes
  • Eomaia
  • Maelestes
  • Montanalestes
  • Murtoilestes
  • Prokennalestes
  • Placentalia
  • Superorder

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Euarchontoglires

Orders
  • Glires
  • Rodentia
  • Lagomorpha
  • Euarchonta
  • Dermoptera

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order (Latin: ordo, plural ordines) is a rank between class and family (termed a taxon at that rank). The superorder is a rank between class and order. Exact details of formal nomenclature depend on the Nomenclature Code which applies.
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Dermoptera
Illiger, 1811

Family: Cynocephalidae
Simpson, 1945

Genera & Species

Cynocephalus
  • Cynocephalus volans
Galeopterus
  • Galeopterus variegatus

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Scandentia
Wagner, 1855

Families
  • Tupaiidae
  • Ptilocercidae


The treeshrews (or tree shrews) are small mammals native to the tropical forests of Southeast Asia.
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Plesiadapiformes
Simons & Tattersall, 1972

Families
  • Micromomyidae
  • Paromomyidae
  • Picromomyidae
  • Palaechthonidae
  • Picrodontidae
  • Microsyopidae
  • Chronolestidae
  • Plesiadapidae
  • Carpolestidae


Plesiadapiformes
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Primates
Linnaeus, 1758

Families
  • 15, See classification
A primate is any member of the biological order Primates, the group that contains all the species commonly related to the lemurs, monkeys, and apes, with the last category
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order (Latin: ordo, plural ordines) is a rank between class and family (termed a taxon at that rank). The superorder is a rank between class and order. Exact details of formal nomenclature depend on the Nomenclature Code which applies.
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Mammalia
Linnaeus, 1758

Subclasses & Infraclasses
  • Subclass †Allotheria*
  • Subclass Prototheria
  • Subclass Theria

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order (Latin: ordo, plural ordines) is a rank between class and family (termed a taxon at that rank). The superorder is a rank between class and order. Exact details of formal nomenclature depend on the Nomenclature Code which applies.
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Dermoptera
Illiger, 1811

Family: Cynocephalidae
Simpson, 1945

Genera & Species

Cynocephalus
  • Cynocephalus volans
Galeopterus
  • Galeopterus variegatus

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Scandentia
Wagner, 1855

Families
  • Tupaiidae
  • Ptilocercidae


The treeshrews (or tree shrews) are small mammals native to the tropical forests of Southeast Asia.
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Plesiadapiformes
Simons & Tattersall, 1972

Families
  • Micromomyidae
  • Paromomyidae
  • Picromomyidae
  • Palaechthonidae
  • Picrodontidae
  • Microsyopidae
  • Chronolestidae
  • Plesiadapidae
  • Carpolestidae


Plesiadapiformes
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Primates
Linnaeus, 1758

Families
  • 15, See classification
A primate is any member of the biological order Primates, the group that contains all the species commonly related to the lemurs, monkeys, and apes, with the last category
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The term morphology in biology refers to the outward appearance (shape, structure, color, pattern) of an organism or taxon and its component parts. This is in contrast to physiology, which deals primarily with function.
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Archonta

Orders
  • Primates
  • Plesiadapiformes (extinct)
  • Scandentia
  • Dermoptera
  • Chiroptera


The Archonta are a group of mammals considered a superorder in some classifications.
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BAT may refer to:
  • Baby AT, a variant of the AT form factor
  • Bangor Area Transit
  • B.A.T., "Bureau of Astral Troubleshooters", a 1990 computer game
  • Batch file, ".BAT", MS-DOS, OS/2, and Windows shell programs
  • BAT (G.I.

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Retrotransposons are genetic elements that can amplify themselves in a genome and are ubiquitous components of the DNA of many eukaryotic organisms. They are a subclass of transposon.
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Archonta

Orders
  • Primates
  • Plesiadapiformes (extinct)
  • Scandentia
  • Dermoptera
  • Chiroptera


The Archonta are a group of mammals considered a superorder in some classifications.
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BAT may refer to:
  • Baby AT, a variant of the AT form factor
  • Bangor Area Transit
  • B.A.T., "Bureau of Astral Troubleshooters", a 1990 computer game
  • Batch file, ".BAT", MS-DOS, OS/2, and Windows shell programs
  • BAT (G.I.

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In phylogenetics, a group of organisms is said to be paraphyletic (Greek para = near and phyle = race) if the group contains its most recent common ancestor, but does not contain all the descendants of that ancestor.
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Megachiroptera
Dobson, 1875

Family: Pteropodidae
Gray, 1821

Subfamilies

Macroglossinae
Pteropodinae

Megabats constitute the suborder Megachiroptera within the order Chiroptera
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Primates
Linnaeus, 1758

Families
  • 15, See classification
A primate is any member of the biological order Primates, the group that contains all the species commonly related to the lemurs, monkeys, and apes, with the last category
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