| The lorises and related mainland African species are members of the Infraorder Lorisiformes. |
| Dyer and Chernoff considered Iso and Notocheirus to be more derived than Atherinopsidae, and a sister group to the so-called infraorder Atherines. |
| The infraorder Cetacea includes whales, dolphins and porpoises. |
| They are an informal grouping within the infraorder Cetacea, usually excluding dolphins and porpoises. |
| Crustaceans reign, particularly those of the infraorder Brachyura. |
| The Caridea, commonly known as caridean shrimp, are an infraorder of shrimp within the order Decapoda. |
