Monotremata

E193060

Monotremata is an order of egg-laying mammals, including the platypus and echidnas, that represent one of the most primitive living branches of the mammalian lineage.

All labels observed (2)

Label Occurrences
Monotremata canonical 3
Prototheria 1

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf mammalian order
order
taxon
characteristic endothermic
hair-covered body
have a cloaca
lack true teeth as adults in most species
mammals that lay eggs
possess mammary glands without nipples
produce milk
chromosomeFeature complex sex chromosome systems in some species
class Mammalia
commonName monotremes
diet invertebrates
small vertebrates
distinguishedFrom Theria
marsupials
placental mammals
evolutionaryStatus basal mammalian lineage
one of the most primitive living branches of Mammalia
extantFamilies Ornithorhynchidae
Tachyglossidae
feedingOfYoung milk secreted onto skin or specialized grooves
fossilRecord extends back to at least the Early Cretaceous
geographicDistribution Australia
New Guinea
Tasmania
habitat semi-aquatic
terrestrial
hasDevelopment young are altricial at hatching
young hatch from leathery-shelled eggs
includes Ornithorhynchidae
Tachyglossidae
echidnas
platypus
infraclass Australosphenida
kingdom Animalia
lays eggs
phylum Chordata
recognizedAs living representatives of early mammalian evolution
reproduction internal fertilization
reproductiveMode oviparous
sensoryAdaptation electroreception in platypus bill
skeletonFeature shoulder girdle retains some reptile-like elements
subclass Monotremata self-linksurface differs
surface form: Prototheria
taxonRank order
vertebrateGroup amniotes

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Eutheria excludes Monotremata
Mammalia includesSubclass Monotremata
Theria sisterGroupTo Monotremata
Monotremata subclass Monotremata self-linksurface differs
this entity surface form: Prototheria