Abstract
AbstractTwo new neoavian landbirds are reported from the early Miocene St Bathans Fauna from New Zealand. Aegotheles zealandivetus sp. nov. is described from several bones, among which, notably, the tarsometatarsus shows more similarity to New Guinean taxa than to Australian—New Zealand species. Zealandornis relictus gen. et sp. nov. is described from a distal end of a humerus and placed in the new family Zealandornithidae, tentatively among the ‘higher landbirds’ Telluraves, with most similarity to coliiforms. The humerus is of similar size to that of species of Colius and its gracile shaft and very shallow sulcus scapulotricipitalis suggests reduced flying ability. The new species of Aegotheles reinforces the Australasian nature of the Zealandian fauna, while in contrast, Zealandornis relictus gen. et sp. nov. appears to have no close relatives. It is as distinct as Acanthisittidae and Strigopidae among birds, or Leiopelmatidae and Sphenodontidae among the herpetofauna, and like them, represents a similar relictual taxon. Together they confer a highly evolutionarily distinctive nature to the Zealandian fauna concomitant with a minimal 60 million years of isolation.
Funder
Australian Research Council
Marsden Fund
Flinders University
Publisher
Springer Science and Business Media LLC
Reference91 articles.
1. Allwood J, Gleeson D, Mayer G, Daniels S, Beggs JR, Buckley TR (2010) Support for vicariant origins of the New Zealand Onychophora. J Biogeog 37:669–681
2. Anderson A, Sand C, Petchey F, Worthy TH (2010) Faunal extinction and human habitation in New Caledonia: initial results and implications of new research at the Pindai Caves. J Pac Archaeol 1:89–109
3. Apte S, Smith PJ, Wallis GP (2007) Mitochondrial phylogeography of the New Zealand freshwater crayfishes, Paranephrops spp. Mol Ecol 16:1897–1908
4. Baird SF (1858) Birds [pp. 18, 128-592]: Reports of explorations and surveys to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean. U.S. Congress, Washington
5. Balouet J-C, Olson SL (1989) Fossil birds from late Quaternary deposits in New Caledonia. Smith Contr Zool 469:1–38