A "'barnacle "'is a type of arthropod constituting the infraclass Cirripedia in the suspension feeders, and have two nektonic ( active swimming ) larval stages.
22.
While mammal classification at the family level has been relatively stable, several contending classifications regarding the higher levels subclass, infraclass and order, especially of the marsupials appear in contemporaneous literature.
23.
In 1984, " Sudamerica ameghinoi ", from the Paleocene of Argentina, was assigned to Xenarthra within Paratheria, ranked as a cohort ( a taxonomic rank between infraclass and superorder ).
24.
The reason why I chose the two-sublclass / three-infraclass system is because I feel evolution is very important in taxonomy, so two subclasses with three infraclasses makes the most sense in organising mammals.
25.
"' Endopterygota "', also known as "'Holometabola "', is a superorder of insects within the infraclass Neoptera that go through distinctive larval, pupal, and adult stages.
26.
:: According to our articles Neoptera is an infraclass, Endopterygota is a superorder within that infraclass, therefore indicating that all Endopterygota are Neoptera .-- jjron 03 : 03, 2 July 2007 ( UTC)
27.
:: According to our articles Neoptera is an infraclass, Endopterygota is a superorder within that infraclass, therefore indicating that all Endopterygota are Neoptera .-- jjron 03 : 03, 2 July 2007 ( UTC)
28.
All the insects groups included are from the infraclass Neoptera, which can flex their wings over the abdomen, so it does not include members of the Palaeoptera which cannot flex their wings in this way and includes mayflies.
29.
Oniscomorphs are united with the poorly known Glomeridesmida in the infraclass Pentazonia, which is characterized by posterior telopods and relatively short bodies, and is the sister group to the Helminthomorpha, or " worm-like " millipedes.
30.
Bonaparte described an additional related animal, " Vucetichia gracilis ", from the Argentinean Late Cretaceous in 1990; by then he classified it in the order Gondwanatheria, which was tentatively assigned to the infraclass Paratheria.
