AnAge Browser

Order
Family
Genus
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Charadriiformes
Alcidae
Aethia 3
Alca 1
Brachyramphus 1
Cepphus 2
Cerorhinca 1
Fratercula 1
Ptychoramphus 1
Synthliboramphus 2
Uria 2

Found 9 branches in Alcidae (query or survey).