Alvonatalia: Difference between revisions
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Vivaporius (talk | contribs) (Created page with "{{Taxobox | color = | name = Alvonatals | image = N/A.png | image_caption = An {{w|adult}} TBD (left), TBD (center), and TBD (right) | fossil_range = {{w|Late Cretaceous}}-{{w|Holocene}} {{Geological range|83.173|0|earliest=145.0}} Possible {{w|Early Cretaceous}} records | status = | status_system = IUCN3.1 | regnum = {{w|Animalia}} | phylum = {{w|Chordate|Chordata}} | classis = {{w|Mammal|Mammalia}} | ordo = Alvonatalia | binomial_authority = TBD, XXXX | subdivis...") |
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**''TBD''
**''TBD''
}}'''Alvonatals''' are a [[Xenotheria|xenotherian]] {{w|infraclass}} of the order '''Alvonatalia'''. Unlike the three primary infraclasses of {{w|Mammal|Mammalia}} – {{w|Placentalia|placentals}} ({{w|Eutheria}}), {{w|Marsupial|marsupials}} ({{w|Metatheria}}), and {{w|Monotreme|monotremes}} ({{w|Prototheria}}) – alvonatals are unique in that all extant species of the infraclass hail from off-world rather than originating on {{w|Earth}}. Alvonatals are distinguished by their method of asexual reproduction, where live young are born through a
Most alvonatal species give birth to substantially more developed {{w|Precociality and altriciality|precocial}} young, which are capable of movement from the moment of birth. As with placentals and marsupials, alvonatals are nourished within the {{w|placenta}} of an apex alvonatal until birth, and are partially-nursed and protected by mesa alvonatals until capable of digesting solid foods on their own. However, the vast majority of alvonatal newborns can see, hear, and move on their own from the moment of birth. Alvonatals represent the overwhelming majority of mammalian lifeforms residing on the planet of ''TBD'', and most of the animal life imported to the other worlds inhabited by ''TBD'' are comprised of alvonatals.
The word ''alvonatal'' is derived from the {{w|Latin}} words ''alvus'' ("belly" or "stomach") and ''nātus'' ("born"), referring to the method of birth via the
==Classification==
==Anatomical features==
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