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A new basal ornithuromorph bird (Aves:Ornithothoraces) from the Early Cretaceous of China with implication for morphology of early Ornithuromorpha

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Ornithuromorpha is the most derived avian group in the Early Cretaceous, advanced members of which encompass
all living birds (Neornithes). Here we report on a new basal ornithuromorph bird, Bellulia rectusunguis gen.
et sp. nov., represented by a nearly complete skeleton from the Early Cretaceous Jehol Biota in northeastern China.
A comprehensive phylogenetic analysis resolved the new taxon in a basal position that is only more derived than
Archaeorhynchus and Jianchangornis among ornithuromorphs, increasing the morphological diversity of basal
ornithuromorphs. The new specimen has a V-shaped furcula with a short hypocleidium, a feature otherwise known
only in Schizooura among Cretaceous ornithuromorphs. We discuss the implications of the new taxon on the evolution
of morphology of primitive ornithuromorphs, particularly of pectoral girdle, sternum and limb proportion
pertaining to powered flight. The preserved gastroliths and pedal morphology indicate herbivory and lakeshore
adaption for this new species.

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Ketersediaan

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Informasi Detail

Judul Seri

Zoological Journal of the Linnean Society

No. Panggil

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Penerbit

: The Linnean Society of London., 2016

Deskripsi Fisik

Zoological Journal of the Linnean Society, 2016, 176, 207–223.

Bahasa

English

ISBN/ISSN

doi: 10.1111/zoj.123

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

BIOLOGI

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

Lampiran Berkas

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