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Eutheria
Sign in to saveAlso known as eutherians, Pan-Placentalia
Eutheria (from Ancient Greek εὐ- (eú-), meaning "true, well", and θηρίον (thēríon), meaning "beast", and thus, "true beasts"), also called Pan-Placentalia, is the clade consisting of placental mammals and all therian mammals that are more closely related to placentals than to marsupials. Placentalia is the only surviving taxon of Eutherians, and the two are synonymous outside of paleozoology.
OverviewAI-generated
Eutheria is a taxon within the class Mammalia and phylum Chordata, described by Huxley in 1880. It is classified as an infraclass under the parent taxon Theria. The group is also referred to by common names such as euthériens, placentaires, placentali, and placentalia. Its temporal range begins in the Early Cretaceous, approximately 125 million years ago.
In contrast, a separate taxon named Eutheria exists within the kingdom Animalia, phylum Arthropoda, and class Insecta. This genus belongs to the order Coleoptera and family Chrysomelidae, with the scientific name Eutheria Spaeth, 1909. Records for this insect taxon have been documented in Fiji and the United States, with occurrences held by institutions including UWBM, UCMP, and NMMNHS.
Synthesized by Vinony from 35 facts across 7 sources: Wikidata, GBIF, PubMed, Gbif Occ, iDigBio, WoRMS, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Species
正獣下綱
Eutheria
GENUS
- KingdomAnimalia
- PhylumArthropoda
- ClassInsecta
- OrderColeoptera
- FamilyChrysomelidae
via GBIF
Museum specimens
- Specimen records
- 114
- Family
- Chrysomelidae
- Collections
- UWBM, UCMP, NMMNHS
- Recorded in
- Fiji, United States
Research
27,590,819 papers- The eutheria-specific miR-290 cluster modulates placental growth and maternal-fetal transport.Development (Cambridge, England) · 2017
- Rapid divergence of a gamete recognition gene promoted macroevolution of Eutheria.Genome biology · 2022
- Identifying SARS-CoV-2-related coronaviruses in Malayan pangolins.Nature · 2020
- Afrotheria.Current biology : CB · 2022
- Placental glycotype of the caviomorph rodent Lagostomus maximus and its evolution within Eutheria.Journal of morphology · 2023
via PubMed
~7 min read
Encyclopedic overview
4 sectionsContents
- Characteristics
- Taxonomy
- Evolutionary history
- References
Eutheria (from Ancient Greek εὐ- (eú-), meaning "true, well", and θηρίον (thēríon), meaning "beast", and thus, "true beasts"), also called Pan-Placentalia, is the clade consisting of placental mammals and all therian mammals that are more closely related to placentals than to marsupials. Placentalia is the only surviving taxon of Eutherians, and the two are synonymous outside of paleozoology.
Eutherians are distinguished from non-eutherians by various phenotypic traits of the feet, ankles, jaws and teeth. All extant eutherians lack epipubic bones, which are present in all other living mammals (marsupials and monotremes). This allows for expansion of the abdomen during pregnancy, though epipubic bones are present in a number of primitive eutherians. Eutheria was named in 1872 by Theodore Gill; in 1880, Thomas Henry Huxley defined it to encompass a more broadly defined group than Placentalia.
Excerpted from Wikipedia’s “Eutheria” article, available under the CC BY-SA 4.0 licence.