Eumuroida (original) (raw)
The Eumuroida are a clade defined in 2004 by Steppan et al. that includes rats, mice and related species, though not all rodents; in other words, a specific group of muroid rodents. The clade is not defined in the standard taxonomic hierarchy, but it is between superfamily and family. Jansa and Weksler (2004) noted that the Eumuroid ancestors likely had hamster-like (cricetid) molars as opposed to mouse-like molars (murid). Essentially, the occlusal surface of the molars probably had two rows of cusps (cricetid) instead of three (murid).
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| dbo:abstract | The Eumuroida are a clade defined in 2004 by Steppan et al. that includes rats, mice and related species, though not all rodents; in other words, a specific group of muroid rodents. The clade is not defined in the standard taxonomic hierarchy, but it is between superfamily and family. The Eumuroida are technically defined as the clade including all organisms descended from the most recent common ancestor of the Calomyscidae, Nesomyidae, Cricetidae, and Muridae. It specifically excludes the fossorial forms of mouse-like rodents in the family Spalacidae. It has yet to be determined if the Platacanthomyidae belong to the Eumuroida, but Norris et al. (2004) suggested they do not because of subtle features in the skull. Norris et al. (2004) noted that two characters can be used to define the Eumuroida: the infraorbital foramen is V-shaped and extends to the roof of the palate, and the incisive foramina are medium to large in size. The zygomatic plate is at least moderately developed in this group, producing the V shape. The common ancestors to the Eumuroida were probably not specialized as burrowing animals, whereas the spalacid ancestor may have been. Jansa and Weksler (2004) noted that the Eumuroid ancestors likely had hamster-like (cricetid) molars as opposed to mouse-like molars (murid). Essentially, the occlusal surface of the molars probably had two rows of cusps (cricetid) instead of three (murid). Early fossil muroids, such as , represent a possible ancestor to the Eumuroida. These rodents have the cricetid tooth, hence the name: cricetus = hamster + dont = tooth. The presence of these fossils in Eurasia is parsimonious, because most families of eumuroids (except the Nesomyidae) have representatives in Asia. Steppan et al. (2004) suggested the most recent common ancestor of the Eumuroida lived around the transition between the Oligocene and Miocene. This date only slightly precedes the first appearance of cricetodontines. (en) |
| dbo:thumbnail | wiki-commons:Special:FilePath/Mouse_white_background.jpg?width=300 |
| dbo:wikiPageID | 1276005 (xsd:integer) |
| dbo:wikiPageLength | 4803 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1010439872 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Calomyscidae dbr:Calomyscinae dbr:Rodent dbr:Molar_(tooth) dbr:Mouse dbc:Muroid_rodents dbr:Petromyscinae dbr:Incisive_foramen dbr:Infraorbital_foramen dbr:Cricetidae dbr:Ancestor dbr:Tylomyinae dbr:Cladistics dbr:Gene dbr:Genes dbr:Miocene dbr:Mouse-like_hamster dbr:Muridae dbr:Murinae dbr:Muroidea dbr:Muskrat dbr:Mystromyinae dbr:Cricetinae dbr:Cricetomyinae dbr:Lemming dbr:Lophiomyinae dbr:Mammal dbr:Sigmodontinae dbr:Dendromurinae dbr:Deomyinae dbr:Zokor dbr:Hamster dbr:Platacanthomyidae dbr:Mus_musculus dbr:Gerbil_mice dbr:Eurasia dbr:Fossorial dbr:Family_(biology) dbr:Fossil dbr:Gerbillinae dbr:Gerbillus dbr:Tooth dbr:Climbing_swamp_mouse dbr:Taxonomic_rank dbc:Mammal_unranked_clades dbr:White-tailed_rat dbr:Arvicolinae dbr:Phylogeny dbr:Spalacidae dbr:Clade dbr:Nesomyidae dbr:Oligocene dbr:Rat dbr:Species dbr:Skull dbr:Vole dbr:Neotominae dbr:Nesomyinae dbr:New_World_rats_and_mice dbr:Zygomatic_plate dbr:Palate dbr:African_climbing_mice dbr:Rock_mouse dbr:Fat_mice dbr:Taxonomic_classification dbr:Crested_rat dbr:Forest_mice dbr:Myospalacinae dbr:Vlei_rat dbr:Cricetodontinae dbr:Divergence_date |
| dbp:imageCaption | Mus musculus (en) |
| dbp:subdivision | dbr:Calomyscidae Cricetidae (en) Muridae (en) Nesomyidae (en) |
| dbp:subdivisionRanks | Families (en) |
| dbp:taxon | Eumuroida (en) |
| dbp:wikiPageUsesTemplate | dbt:Automatic_taxobox dbt:Short_description dbt:Taxonbar |
| dcterms:subject | dbc:Muroid_rodents dbc:Mammal_unranked_clades |
| gold:hypernym | dbr:Clade |
| rdf:type | dbo:Animal yago:WikicatMuroidRodents yago:WikicatRodents yago:Animal100015388 yago:Chordate101466257 yago:LivingThing100004258 yago:Mammal101861778 yago:Object100002684 yago:Organism100004475 yago:PhysicalEntity100001930 yago:Placental101886756 yago:Rodent102329401 yago:Vertebrate101471682 yago:Whole100003553 umbel-rc:Mammal |
| rdfs:comment | The Eumuroida are a clade defined in 2004 by Steppan et al. that includes rats, mice and related species, though not all rodents; in other words, a specific group of muroid rodents. The clade is not defined in the standard taxonomic hierarchy, but it is between superfamily and family. Jansa and Weksler (2004) noted that the Eumuroid ancestors likely had hamster-like (cricetid) molars as opposed to mouse-like molars (murid). Essentially, the occlusal surface of the molars probably had two rows of cusps (cricetid) instead of three (murid). (en) |
| rdfs:label | Eumuroida (en) |
| owl:sameAs | freebase:Eumuroida yago-res:Eumuroida wikidata:Eumuroida dbpedia-simple:Eumuroida dbpedia-vi:Eumuroida https://global.dbpedia.org/id/33bVw |
| prov:wasDerivedFrom | wikipedia-en:Eumuroida?oldid=1010439872&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/Mouse_white_background.jpg |
| foaf:isPrimaryTopicOf | wikipedia-en:Eumuroida |
| is dbo:wikiPageWikiLink of | dbr:Muroidea dbr:Zokor dbr:Platacanthomyidae dbr:Spalacidae dbr:Rhizomyinae |
| is foaf:primaryTopic of | wikipedia-en:Eumuroida |
