Aequornithes
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Aequornithes, or core water birds, are defined in the PhyloCode as "the least inclusive crown clade containing Pelecanus onocrotalus and Gavia immer", that is, the last common ancestor of the great wh
Thalassarche cauta SE Tasmania
Spot billed pelican takeoff white background
Gaviiformes
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Gaviiformes is an order of aquatic birds containing the loons or divers and their closest extinct relatives. Modern gaviiformes are found in many parts of North America and northern Eurasia, though pr
Aequornithes
…the great white pelican and the common loon, as well as its descendants, extinct and extant. Aequornithes, as currently understood, includes the clades Gaviiformes (loons), Sphenisciformes (penguins), Procellariiformes (petrels and albatrosses), Ciconiiformes (storks), Suliformes (gannets and cormorants) and…
Pacific Loon 24
Red-throated loon (G. stellata), the smallest living Gavia species. Some Miocene members of this genus were smaller still.