Aves - Charadriiformes - Stercorariidae
Parent taxon: Charadriiformes according to J. F. Clements et al. 2017
See also Carroll 1988, del Hoyo et al. 2014, Dyke and Walker 2005, Livezey and Zusi 2007, Mayr 2022, Olson and Rasmussen 2001, Smith 2011, Warheit 2002 and Wetmore 1956
Sister taxa: Alcae, Alcoidae, Burhinidae, Charadrii, Charadriisimilis, Chionidae, Cimolopterygidae, Dakotornithidae, Elseyornis, Erythrogonys, Graculavidae, Graculavus, Haematopodidae, Hydrophasianus, Jacanidae, Lari, Limicolae, Panalcidae, Parrae, Pedionomae, Pedionomidae, Peltohyas, Phegornis, Pluvianellus, Pluvianidae, Recurvirostridae, Rhinoptilus, Sarjeantopodus, Scolopaci, Scolopacidae, Telmatornis, Telmatornithidae, Thinocoridae, Thinornis, Turnicidae, Volgavis
Subtaxa: Stercorarius
Ecology: ground dwelling carnivore
Distribution:
• Quaternary of Antarctica (3 collections), Australia (1), Canada (4: Nunavut), New Zealand (4), Spain (2), the United Kingdom (1), United States (2: California, Oregon), Venezuela (1)
• Pliocene of United States (2: Florida, North Carolina)
Total: 20 collections including 25 occurrences