Clark’s Nutcracker

by NG | Dec 28, 2017 | Nutcrackers

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Maaqwi is an extinct genus of large marine diving bird from the Late Cretaceous (Northumberland Formation, latest Campanian) of Hornby Island, British Columbia, Canada.^[1] The genus name Maaqwi comes from the Coast Salish "ma'aqwi" meaning "water bird," and the specific epithet cascadensis reflects the fossil's origin from the Cascadia region of Western North America. The genus is known from a single specimen, RBCM.EH2008.011.01120. It consists of a coracoid, humerus, ulna, and radius in a nodule of mudstone. The specimen is housed in the Royal British Columbia Museum. Maaqwi had an estimated body mass of 1.5 kg.

References

^ McLachlan, Sandy M. S.; Kaiser, Gary W.; Longrich, Nicholas R. (December 2017). "Maaqwi cascadensis: A large, marine diving bird (Avialae: Ornithurae) from the Upper Cretaceous of British Columbia, Canada". PLOS ONE. 12 (12): e0189473. Bibcode:2017PLoSO..1289473M. doi:10.1371/journal.pone.0189473. PMC 5722380. PMID 29220405.

Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Theropoda
Clade: Maniraptoriformes

Avemetatarsalia

- see Avemetatarsalia

see Theropoda
Maniraptora	see below↓

†Elopteryx?
†Fukuivenator?
†Kakuru?
†Migmanychion
†Yaverlandia?

†Alvarezsauroidea

Alvarezsauridae

Parvicursorinae

Dzharaonyx Jaculinykus Khulsanurus Kol? Nemegtonykus Ondogurvel Parvicursor Qiupanykus Trierarchuncus
Ceratonykini	Albinykus Ceratonykus Xixianykus
Mononykini	Albertonykus Linhenykus Mononykus Shuvuuia

†Therizinosauria

Therizinosauroidea

Alxasaurus Beipiaosaurus Enigmosaurus Martharaptor Suzhousaurus
Therizinosauridae	Erliansaurus Erlikosaurus Nanshiungosaurus Neimongosaurus Nothronychus Paralitherizinosaurus Segnosaurus Therizinosaurus

†Oviraptorosauria	see Oviraptorosauria
Paraves	see below↓

Patagonykus puertai

Therizinosaurus cheloniformis

†Imperobator †Palaeopteryx? †Pneumatoraptor †Rahonavis
†Scansoriopterygidae?	Ambopteryx Epidexipteryx Scansoriopteryx Yi
†Anchiornithidae	Anchiornis Aurornis Caihong Eosinopteryx Fujianvenator Liaoningvenator? Ostromia Pedopenna Serikornis Xiaotingia Yixianosaurus
†Archaeopterygidae	Alcmonavis? Archaeopteryx Wellnhoferia Anchiornithidae?
†Dromaeosauridae	see Dromaeosauridae
†Troodontidae	see Troodontidae

†Alcmonavis †Balaur? †Cretaaviculus? †Fukuipteryx †Overoraptor †Rahonavis? †Yandangornis †Zhongornis †Anchiornithidae? †Archaeopterygidae? †Scansoriopterygidae?
†Jeholornithiformes	Dalianraptor? Jeholornis Jixiangornis? Kompsornis Neimengornis

†"Proornis"

†Omnivoropterygidae?

Omnivoropteryx
Sapeornis

†Confuciusornithidae

†Jinguofortisidae

Ornithothoraces

†Enantiornithes	see Enantiornithes
Euornithes	see below↓

Ambopteryx longibrachium

Confuciusornis sp.

†Archaeorhynchus †Bellulornis †Brevidentavis †Changmaornis †Changzuiornis †Chaoyangia †Dingavis †Eogranivora †Gansus †Gargantuavis? †Hollanda †Horezmavis †Iteravis †Jianchangornis †Jiuquanornis †Juehuaornis †Kaririavis †Khinganornis †Meemannavis †Platanavis †Vorona †Wyleyia? †Xinghaiornis †Yumenornis †Zhongjianornis
†Schizoouridae	Mengciusornis Schizooura
†Patagopterygiformes	Alamitornis Kuszholia? Patagopteryx
†Ambiortiformes	Ambiortus Apsaravis? Palintropus?
†Hongshanornithidae	Archaeornithura Hongshanornis Longicrusavis Parahongshanornis Tianyuornis
†Songlingornithidae	Hollanda? Piscivoravis? Songlingornis Yanornis? Yixianornis?
†Yanornithidae	Abitusavis Similiyanornis Yanornis

†Antarcticavis?
†Apatornis
†Cerebavis
†Gallornis
†Guildavis
†Iaceornis
†Kookne
†Limenavis
†Tingmiatornis

†Ichthyornithes

Ichthyornis
Janavis

†Hesperornithes

Baptornis Brodavis Chupkaornis Enaliornis Judinornis Pasquiaornis Potamornis
Hesperornithidae	Asiahesperornis Canadaga Fumicollis Hesperornis Parahesperornis

†Cimolopterygidae

Aves / Neornithes

- see below↓

Patagopteryx deferrariisi

Ichthyornis dispar

Aves / Neornithes

- see Palaeognathae

Neoaves

Anserimorphae	see Anserimorphae
Pangalliformes	see Pangalliformes

Incertae sedis

†Asteriornis †Perplexicervix †Qinornis?
†Dromornithidae	Barawertornis Dromornis Genyornis Ilbandornis
†Gastornithiformes	Brontornis? Gastornis Dromornithidae?
†Pelagornithidae	Aequornis Caspiodontornis Cyphornis Dasornis Gigantornis Laornis? Lutetodontopteris Macrodontopteryx Manu? Odontopteryx Odontoptila Osteodontornis Palaeochenoides Pelagornis Proceriavis? Protodontopteryx Protopelicanus? Pseudodontornis Tympanonesiotes

Asteriornis maastrichtensis

Dromornis stirtoni

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