Owl's spiny rat

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Owl's spiny rat
Temporal range: Pleistocene to Recent
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Echimyidae
Genus: Carterodon
Waterhouse, 1848
Species:
C. sulcidens
Binomial name
Carterodon sulcidens
(Lund, 1838)

Owl's spiny rat (Carterodon sulcidens) is a rodent species in the family Echimyidae found in Brazil. It is the only species in the genus Carterodon. Owl's spiny rat has evolved characteristics such as a heightened ability to dig in open grasslands during times of environmental change. [2]

Phylogeny

The genus Carterodon is the sister group to the family Capromyidae (hutias). In turn, this clade shares evolutionary affinities with some genera of spiny rats belonging to the subfamily Euryzygomatomyinae.

Analyses of craniodental characters proposed that Carterodon may be associated with Clyomys and Euryzygomatomys. [3] [4] However, molecular data suggest the polyphyly of this assemblage of fossorial genera. [5]

Cladogram showing the relationship of Carterodon
with Capromyidae and Euryzygomatomyinae.
   Octodontoidea   
Euryzygomatomyinae
         

  Trinomys (Atlantic spiny rats)

         

  Euryzygomatomys (guiaras)

  Clyomys

  Carterodon (Owl's spiny rat)

Capromyidae
   Plagiodontini   

  Plagiodontia

   Capromyini   

  Geocapromys

         
         
         

  Mesocapromys

  Mysateles

  Capromys (Desmarest's hutia)

The cladogram has been reconstructed from mitochondrial and nuclear DNA characters. [6] [7] [8] [9] [10] [5] According to this phylogenetic tree, the fossorial genera Carterodon, Clyomys , and Euryzygomatomys constitute a polyphyletic assemblage (red bar).

Related Research Articles

<i>Geocapromys</i> Genus of mammals belonging to the hutia subfamily of rodents

Geocapromys is a genus of rodent belonging to the hutia subfamily and are currently only found on the Bahamas and Jamaica. However, they formerly ranged throughout the Caribbean, from Cuba to the Cayman Islands to even islands off mainland Central America.

The giant tree-rat is a species in the family Echimyidae, the spiny rats. It is the only species in the monotypic genus Toromys. It is endemic to Brazil, where it occurs in the flooded forest along the banks of the Amazon River and its tributaries.

The tuft-tailed spiny tree rat is a spiny rat species from Brazil south of the Amazon River, where it has been found in grassland and gallery forest. It is the only species in the genus Lonchothrix. Very little is known about this rodent. It is small with an average adult weight of about 138 grams. It is nocturnal and solitary in habits.

Phyllomys is a genus of arboreal spiny rat, geographically restricted to the forests of eastern Brazil.

<i>Mesomys</i> Genus of mammals belonging to the spiny rat family of rodents

Mesomys is a genus of South American spiny rats in the family Echimyidae.

<i>Echimys</i> Genus of mammals belonging to the spiny rat family of rodents

Echimys is a genus of the spiny rats family, the Echimyidae. Members of this genus are collectively called spiny tree-rats.

<i>Dactylomys</i> Genus of mammals belonging to the spiny rat family of rodents

Dactylomys is the genus of South American bamboo rats They are arboreal members of the family Echimyidae.

<i>Olallamys</i> Genus of mammals belonging to the spiny rat family of rodents

Olallamys is a genus of Andean soft-furred spiny rat that range from Panama through Colombia and Venezuela to northern Ecuador. These species are typically found at elevations above 2,000 metres (6,600 ft).

<span class="mw-page-title-main">Guiara</span> Genus of mammals belonging to the spiny rat family of rodents

Euryzygomatomys is a genus of South American rodents, commonly called guiaras, in the family Echimyidae. It contains two extant and one fossil species, found in Argentina, Brazil and Paraguay. They are as follows:

<i>Diplomys</i> Genus of mammals belonging to the spiny rat family of rodents

Diplomys is a genus of rodent in the family Echimyidae. They are found in Costa Rica, Ecuador, Colombia and Panama.

Makalata is a genus of rodents in the family Echimyidae.

<i>Mesocapromys</i> Genus of mammals belonging to the hutia subfamily of rodents

Mesocapromys is a genus of rodent in the subfamily Capromyinae. The genus is restricted to Cuba and associated islands.

Pattonomys is a genus of rodent in the family Echimyidae, named after American mammalogist James L. Patton. It contains the following species:

Clyomys is a South American rodent genus in the family Echimyidae. It contains two species, found in tropical savannas and grasslands from circa 100 m (300 ft) to 1,100 m (3,600 ft) elevation in central Brazil and eastern Paraguay.

<i>Thrichomys</i> Genus of mammals belonging to the spiny rat family of rodents

Thrichomys is a genus of South American rodents in the family Echimyidae. It contains at least five species, found in Bolivia, Brazil and Paraguay. They are as follows:

<span class="mw-page-title-main">Echimyidae</span> Family of rodents

Echimyidae is the family of neotropical spiny rats and their fossil relatives. This is the most species-rich family of hystricognath rodents. It is probably also the most ecologically diverse, with members ranging from fully arboreal to terrestrial to fossorial to semiaquatic habits. They presently exist mainly in South America; three members of the family also range into Central America, and the hutias are found in the Greater Antilles in the Caribbean. Species of the extinct subfamily Heteropsomyinae formerly lived on Cuba, Hispaniola, and Puerto Rico in the Antilles, probably until the arrival of Europeans.

<span class="mw-page-title-main">Myocastorini</span> A tribe of mammals belonging to the spiny rat family of rodents

Myocastorini is a tribe of echimyid rodents, proposed in 2017, and containing the five extant genera Callistomys, Hoplomys, Myocastor, Proechimys, and Thrichomys.

<span class="mw-page-title-main">Euryzygomatomyinae</span> Subfamily of rodents

Euryzygomatinae is a subfamily of rodents, proposed in 2017, and containing three extant genera of spiny Echimyidae: Clyomys, Euryzygomatomys, and Trinomys.

<span class="mw-page-title-main">Echimyini</span> A tribe of mammals belonging to the spiny rat family of rodents

Echimyini is a tribe of echimyid rodents, proposed in 2016, and containing 13 extant genera: all of the tree rats Echimys, Phyllomys, Makalata, Pattonomys, Toromys, Diplomys, Santamartamys, and Isothrix, the long recognized dactylomines Dactylomys, Olallamys, and Kannabateomys, and the enigmatic and previously classified as eumysopines Lonchothrix and Mesomys. All these spiny rats genera are arboreal. Worth of note, the arboreal genus Callistomys – the painted-tree rat – does not belong to the tribe Echimyini. Because it is phylogenetically closer to Myocastor, Hoplomys, Proechimys, and Thrichomys than to the above-mentioned Echimyini genera, it is classified in the tribe Myocastorini.

<span class="mw-page-title-main">Echimyinae</span> A subfamily of mammals belonging to the spiny rat family of rodents

Echimyinae is a subfamily of rodents belonging to the spiny rats family Echimyidae. It contains 14 arboreal genera—all the members of the tribe Echimyini, plus Callistomys—a few terrestrial genera, and a subaquatic genus (Myocastor).

References

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  2. Bezerra, Alexandra & Marinho-Filho, Jader & Carmignotto, Ana. (2011). A review of the distribution, morphology, and habit of the Owl’s Spiny Rat Carterodon sulcidens (Lund, 1841) (Rodentia: Echimyidae). Zoological studies. 50. 566-576.
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