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Early Eocene (Ypresian) birds from the Okanagan Highlands, British Columbia (Canada) and Washington State (USA)

Published on Aug 1, 2019in Canadian Journal of Earth Sciences1.422
路 DOI :10.1139/cjes-2018-0267
Gerald Mayr34
Estimated H-index: 34
(AMNH: American Museum of Natural History),
S. Bruce Archibald16
Estimated H-index: 16
(SFU: Simon Fraser University)
+ 1 AuthorsRolf W. Mathewes42
Estimated H-index: 42
(SFU: Simon Fraser University)
Abstract
We survey the known avian fossils from Ypresian (early Eocene) fossil sites of the North American Okanagan Highlands, mainly in British Columbia (Canada). All specimens represent taxa that were pre...
  • References (60)
  • Citations (1)
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References60
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#1Gerald MayrH-Index: 34
#2Sophie HervetH-Index: 8
Last. Eric BuffetautH-Index: 37
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1 CitationsSource
#1Ursula B. G枚hlich (Naturhistorisches Museum)H-Index: 16
#2Gerald MayrH-Index: 34
AbstractWe restudy the holotype specimen of the alleged fossil auk Petralca austriaca from early Miocene marine deposits of the Austrian locality Pucking, which was considered the earliest European representative of Alcidae (auks). The specimen is a partial skeleton consisting mainly of wing bones on two slabs. A recent re-preparation yielded new data on the skeletal morphology of Petralca, which allow more detailed comparisons with auks and loons. Our study shows that the taxon is clearly disti...
1 CitationsSource
#1N. Adam Smith (Clemson University)H-Index: 10
#2Aj M. Debee (University of Texas at Austin)H-Index: 2
Last. Julia A. Clarke (University of Texas at Austin)H-Index: 28
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3 CitationsSource
#1S. Bruce Archibald (SFU: Simon Fraser University)H-Index: 16
5 CitationsSource
#1S. B. Archibald (SFU: Simon Fraser University)H-Index: 2
Last. Rolf W. Mathewes (SFU: Simon Fraser University)H-Index: 42
view all 3 authors...
Most major modern families of Hymenoptera were established in the Mesozoic, but the diversifications within ecologically key trophic guilds and lineages that significantly influence the character of modern terrestrial ecosystems 鈥 bees (Apiformes), ants (Formicidae), social Vespidae, parasitoids (Ichneumonidae), and phytophagous Tenthredinoidea 鈥 were previously known to occur mostly in the middle to late Eocene. We find these changes earlier, seen here in the early Eocene Okanagan Highlands fos...
10 CitationsSource
#1Sandy M. S. McLachlan (UVic: University of Victoria)H-Index: 2
#2Gary W. Kaiser (Museum Victoria)H-Index: 6
Last. Nicholas R. Longrich (University of Bath)H-Index: 20
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Mesozoic bird fossils from the Pacific Coast of North America are rare, but small numbers are known from the Late Cretaceous aged sediments of Hornby Island, British Columbia. Most are unassociated fragments that offer little information, but additional preparation of a large coracoid has revealed more details of its structure, as well as three associated wing bones. Phylogenetic analysis suggests that Maaqwi cascadensis, gen. et sp. nov. represents a derived crown or near-crown member of Ornith...
1 CitationsSource
#1Gerald Mayr (AMNH: American Museum of Natural History)H-Index: 34
AbstractZygodactylids (Zygodactylidae) are the extinct sister taxon of passerines (Passeriformes) and among the more abundant small arboreal birds in the early Eocene German fossil site Messel. Four species of the taxon Primozygodactylus have previously been identified and here two new species are described. In addition, new fossils of the poorly known P. eunjooae are reported. The fossils corroborate the presence of two very long central tail feathers for Primozygodactylus, and the feathering o...
7 CitationsSource
#1Gerald Mayr (AMNH: American Museum of Natural History)H-Index: 34
Birds play an important role in studies addressing the diversity and species richness of tropical ecosystems, but because of the poor avian fossil record in all extant tropical regions, a temporal perspective is mainly provided by divergence dates derived from calibrated molecular analyses. Tropical ecosystems were, however, widespread in the Northern Hemisphere during the early Cenozoic, and the early Eocene German fossil site Messel in particular has yielded a rich avian fossil record. The Mes...
16 CitationsSource
#1Gerald Mayr (AMNH: American Museum of Natural History)H-Index: 34
Abstract A small bird with a shorebird-like beak and a very long hind toe is described from the Early Eocene of Messel in Germany. Vanolimicola longihallucis , gen. et sp. nov. is one of the few candidate species for a 鈥渨ading bird鈥 from Messel, that is, a bird that may have foraged along the shoreline of the ancient lake. A few features indicate a relationship to charadriiform birds and Jacanidae (jacanas) in particular, but charadriiform affinities are only weakly supported. In the preserved s...
3 CitationsSource
#1Gerald Mayr (AMNH: American Museum of Natural History)H-Index: 34
The lower Eocene lacustrine sediments of the Messel fossil site in Germany yielded a very rich and diversified avifauna. Most of the well-preserved skeletons stem from small-sized birds, whereas complete specimens of larger avian species are rare. There exist, however, a number of isolated feet of larger birds, eight of which are described in the present study. Except for one, all of these specimens exhibit broken leg bones with missing ends, which suggests that they represent feeding remains of...
1 CitationsSource
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Newest
A partial skeleton of a new small avian species is reported from marine sediments of the Rupelian locality Jamna Dolna 2 in southeast Poland. Carpathiavis meniliticus gen. et sp. nov. is characterized by an unusual furcula morphology with stout shafts (scapi clavicularum) and a long, rodshaped furcular apophysis. With regard to furcula shape and the proportions of the wing bones, the new species shows a resemblance to the taxon Eocuculus, which occurs in the late Eocene of North America and the ...
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