Complex sentence: Aequorlitornithes is a clade of waterbirds recovered in a compressive genomic systematic study using nearly 200 species in 2015; it contains the clades Charadriiformes (waders and shorebirds), Mirandornithes (flamingos and grebes) and Ardeae (Eurypygimorphae and Aequornithes).
Split into simpler sentences: Aequorlitornithes is a clade of waterbirds recovered in a compressive genomic systematic study using nearly 200 species in 2015. It contains the clades Charadriiformes (waders and shorebirds), Mirandornithes (flamingos and grebes) and Ardeae (Eurypygimorphae and Aequornithes).