Osteology of a New Giant Bony-Toothed Bird from the Miocene of Chile, with a Revision of the Taxonomy of Neogene Pelagornithidae

  title={Osteology of a New Giant Bony-Toothed Bird from the Miocene of Chile, with a Revision of the Taxonomy of Neogene Pelagornithidae},
  author={Gerald Mayr and David Rubilar-Rogers},
ABSTRACT Bony-toothed birds (Pelagornithidae) were among the largest volant birds, but their representatives from the upper size range have so far been known only from very fragmentary fossils. Here we report an exceptionally well-preserved giant species from the late Miocene of the Bahía Inglesa Formation in northern Chile, in which most major limb bones are complete and uncrushed. The fossil has the longest wing skeleton of any bird, and its wingspan in life was at least 5.2 m. Mass estimates… 
Partial Skeleton of a Bony-Toothed Bird from the Late Oligocene/Early Miocene of Oregon (USA) and the Systematics of Neogene Pelagornithidae
It is detailed that a clade of Neogene species, which the Oregon pelagornithid is not part of, can be supported by a derived morphology of the femur, and classification of all Neogene pelagORNithids in the latter taxon is suggested.
Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica
A new dentary fragment of a pelagornithid bird from the middle Eocene Submeseta Formation on Seymour Island, Antarctica represents a species with a body size on par with the largest known species in the clade, demonstrating the early evolution of giant body size in theclade.
The Earliest Record (Early Miocene) of a Bony-Toothed Bird from South America and a Reexamination of Venezuelan Pelagornithids
ABSTRACT Pelagornithids or bony-toothed birds were an enigmatic group of very large marine birds that existed throughout most of the Tertiary, with remains recovered in all continents. The
Latest Pacific Basin Record of a Bony-Toothed Bird (Aves, Pelagornithidae) from the Pliocene Purisima Formation of California, U.S.A.
ABSTRACT Fossils of pelagornithids (bony-toothed birds) have been reported from strata of Paleocene to Pliocene age, and from every continent. The extreme fragility of pelagornithid bones has no
A New Genus and Species of Pelagornithidae with Well-Preserved Pseudodentition and Further Avian Remains from the Middle Eocene of the Ukraine
Details of pseudotooth morphology strengthen previous assumptions that the pseudodentition of pelagornithids derives from tooth-specific developmental programs and is homologous to true avian teeth on a molecular level.
Oldest, smallest and phylogenetically most basal pelagornithid, from the early Paleocene of New Zealand, sheds light on the evolutionary history of the largest flying birds
The new species suggests that pelagornithids evolved in the Southern Hemisphere and documents a very early radiation of neornithine seabirds, which may have been triggered by changes in marine ecosystems around the K–Pg boundary.
Diversity of pseudo-toothed birds (Pelagornithidae) from the Eocene of Antarctica
The oldest Antarctic pseudo-toothed bird is reported, represented by an incomplete humerus lacking its proximal end, which comes from the lower Eocene levels of the La Meseta Formation (Seymour Island) and facilitates a review of all known pelagornithids from this continent.
Middle Eocene Pelagornithidae and Gaviiformes (Aves) from the Ukrainian Paratethys
The Ukrainian fossils document profound differences between middle Eocene and extant marine avifaunas of Europe, and whereas themiddle Eocene Paratethyan avifauna appears to have been similar to that of the North Sea with regard to pelagornithid diversity, the absence of prophaethontids and relative abundance of Gaviiformes may indicate faunistic differences concerning the remaining seabirds.
A Fossil Albatross from the Early Oligocene of the North Sea Basin
The fossil remains, wing, and pectoral girdle bones of two individuals are described as Tydea septentrionalis, gen. et sp.


Bony‐toothed birds (Aves: Pelagornithidae) from the Middle Eocene of Belgium
The coracoid distinctly differs from that of extant ‘pelecaniform’ birds, and the plesiomorphic presence of a foramen nervi supracoracoidei as well as the absence of a well‐delimited articulation facet for the furcula supports a position outside the Suloidea, the clade to which the Sulidae belong.
It is hypothesized that giant size evolved only once within Pelagornithidae and that Dasornis emuinus is the sister taxon of the giant Neogene bony‐toothed birds, which share a derived wing morphology.
A Sternum of a Very Large Bony-Toothed Bird (Pelagornithidae) from the Miocene of Portugal
The sternum of a very large bony-toothed bird (Pelagornithidae) from the Miocene of Portugal is described, which shows several unique features, including the presence of a marked cranial projection of the carina sterni, and a large, steep-walled opening in the cranial portion of the facies visceralis.
Patterns of Skull Variation of Brachydelphis (Cetacea, Odontoceti) from the Neogene of the Southeastern Pacific
A more comprehensive view of the morphology and variation of this taxon is offered with new specimens from both Pisco and Bahía Inglesa formations, and a revision of the original description of the genus is provided.
Notes on the osteology and phylogenetic affinities of the Oligocene Diomedeoididae (Aves, Procellariiformes)
It is hypothesized that like modern Oceanitinae, which have an equally short supracondylar process, diomedeoidids probably employed flap-gliding and used their immersed feet to remain stationary.
Osteological evidence for sister group relationship between pseudo-toothed birds (Aves: Odontopterygiformes) and waterfowls (Anseriformes)
  • E. Bourdon
  • Biology, Environmental Science
  • 2005
The present hypothesis strongly supports a sister group relationship of pseudo-toothed birds (Odontopterygiformes) and waterfowls (Anseriformes), which are the sister group of Neoaves and the Galloanserae (Galliformes plus Anseriforme) are monophyletic.
  • J. Hopson
  • Environmental Science, Geography
  • 1964
While engaged in the reorganization of the vertebrate fossil collections at the Peabody Museum of Natural History, Yale University, the writer discovered the incomplete lower jaw of a large bird from
Morphology of the quadrate in the Eocene anseriform Presbyornis and extant galloanserine birds
The quadrate's morphology is inconsistent with the currently accepted anseriform phylogeny that nests Presbyornis within the crown‐group as a close relative of the Anatidae and shares ancestral galloanserine characters with the Megapodiidae, the earliest branch of extant galliforms.
A pseudodontorn (Pelecaniformes: Pelagornithidae) from the middle Pliocene of Hawera, Taranaki, New Zealand
These specimens extend the world geological time range for this family of extinct birds into the middle Pliocene, the first record of a pseudodontorn from the North Island, and the third for New Zealand.
Avian brain evolution: new data from Palaeogene birds (Lower Eocene) from England
It is suggested that improvements in cognition relating to telencephalic expansion may have provided neornithine avian clades with an advantage over archaic lineages at the Cretaceous–Tertiary boundary, explaining their survival and rapid diversification in the Cenozoic.