Stem group galliform and stem group psittaciform birds (Aves, Galliformes, Paraortygidae, and Psittaciformes, family incertae sedis) from the Middle Eocene of Namibia

  title={Stem group galliform and stem group psittaciform birds (Aves, Galliformes, Paraortygidae, and Psittaciformes, family incertae sedis) from the Middle Eocene of Namibia},
  author={C{\'e}cile Mourer-Chauvir{\'e} and Martin Pickford and Brigitte Senut},
  journal={Journal of Ornithology},
AbstractThe Middle Eocene locality of Eocliff, Namibia, has yielded a rich vertebrate fauna, including mainly mammals, but also a few bird remains. A coracoid and a scapula are ascribed to a new genus and a new species of galliform in the extinct family Paraortygidae. This family was so far known only from the Late Eocene and Early Oligocene of the northern hemisphere. A distal part of tarsometatarsus is ascribed to a new genus and a new species of psittaciform. This tarsometatarsus shows a… 

New Bird Taxa (Aves: Galliformes, Gruiformes) from the Early Eocene of Mongolia

Abstract New bird taxa are described from the early Eocene Bumban Member of the Tsagaan-Khushuu locality in southern Mongolia. Bumbanortyx transitoria gen. et sp. nov. is a small galliform bird that

Evidence for Wide Dispersal in a Stem Galliform Clade from a New Small-Sized Middle Eocene Pangalliform (Aves: Paraortygidae) from the Uinta Basin of Utah (USA)

Given their occurrence in the United States, Uzbekistan, and Namibia during the middle Eocene, these birds likely were good fliers with an increased ability to disperse; and probably had a flexible biology or diet allowing them to occupy a diversity of habitats from coasts and forests to semi-arid savannah-like habitats.

Tufamyidae, a new family of hystricognath rodents from the Palaeogene and Neogene of the Sperrgebiet, Namibia

The Palaeogene tufa deposits at Eocliff are a ric h source of micromammals, probably the richest such site in Africa, having yielded thousan ds of specimens, including complete skulls, mandibl es and

Micro-cursorial mammals from the late Eocene tufas at Eocliff, Namibia

Fossils of macroscelideans, or micro-cursorial mammals, are common and diverse at Eocliff in the Sperrgebiet, Namibia, a complex of tufa deposits of Bartonian-Priabonian age. Associated mammals

New remains of the very small cuckoo,Chambicuculus pusillus (Aves, Cuculiformes, Cuculidae) from the late Early or early Middle Eocene of Djebel Chambi, Tunisia

The characteristics of the coracoid and tarsometatarsi show that Chambicuculus is morphologically more advanced over the other stem cuculids described in Europe and North America.

Additional material of Namahyrax corvus from the Ypresian/Lutetian of Black Crow, Namibia

Three teeth of a small hyracoid were found during the 2017 campaign of acid digestion of blocks of limestone from Black Crow, Namibia, resolving the uncertainty concerning its familial status, indicating that it belongs to the family Geniohyidae.

Southern hemisphere tectonics in the Cenozoic shaped the pantropical distribution of parrots and passerines

Explanations of pantropical distributions are challenging for taxa that diverged during the Cenozoic, after Gondwana broke apart. The ‘boreotropics hypothesis’ suggests that pantropical birds

The evolution of a tropical biodiversity hotspot

It is observed that higher and more constant speciation rates occur in harsh environments relative to the tropics, and the results reveal a model in which species are forming faster in environmental extremes but have accumulated in moderate environments to form tropical biodiversity hotspots.



The first Palaeogene galliform from Africa

An almost complete tarsometatarsus from the middle Eocene locality of Silica South, Sperrgebiet, Namibia, is attributed to the order Galliformes, the earliest record of the order in Africa, and it is clear that it represents a new genus and species of galliform bird, which is named Namaortyx sperragbietensis.

New specimens of the early Eocene stem group galliform Paraortygoides (Gallinuloididae), with comments on the evolution of a crop in the stem lineage of Galliformes

  • G. Mayr
  • Biology
    Journal of Ornithology
  • 2005
Two new specimens of the fossil stem group galliform Paraortygoides messelensis Mayr 2000 (Gallinuloididae) are described from the Middle Eocene of Messel in Germany, including a complete skeleton in

A new basal galliform bird from the Middle Eocene of Messel (Hessen, Germany)

The cup-like cotyla scapularis ofParaortygoides messelensis shows that the Gallinuloididae branched off very early in the evolution of the Galliformes.

Stem Parrots (Aves, Halcyornithidae) from the Green River Formation and a Combined Phylogeny of Pan-Psittaciformes

Fossil evidence is consistent with a more recent origin of crown clade Psittaciformes than predicted from divergence dating analyses, and supports environmental shifts and dispersal as key drivers in parrot biogeography.

Galliformes, Upupiformes, Trogoniformes, and other avian remains (?Phaethontiformes and ?Threskiornithidae) from the Rupelian stratotype in Belgium, with comments on the identity of “Anas” benedeni Sharpe, 1899

Among the fossils is a partial sternum, which shows that Paraortyx lacks a spina interna, thus indicating that ParAortygidae were not yet adapted to the regular processing of coarse and dry food.

Quercypsitta-Like Birds from the Early Eocene of India (Aves, ?Psittaciformes)

It is concluded that, at least concerning the arboreal taxa, the early Eocene avifauna of India shows some concordances with the much better known one from the late Eocene of Europe, and is assigned to a new family, Vastanavidae.

A small galliform and a small cuculiform from the Eocene of Tunisia

A distal tarsometatarsus and a fragment of carpometacarpus of a small galliform, the size of a recent quail, have been found in the late Early or early Middle Eocene of Chambi, in Tunisia, and is described as a new genus and species.

On the osteology and phylogenetic affinities of the Pseudasturidae–Lower Eocene stem-group representatives of parrots (Aves, Psittaciformes)

Derived osteological characters which are visible in newly recognized specimens from the Lower Eocene London Clay of England most convincingly support classification of the Pseudasturidae into the Psittaciformes (parrots).

The Fossil Galliform Bird Paraortygoides from the Lower Eocene of the United Kingdom

The results of a preliminary phylogenetic analysis suggest that Paraortygoides is basal within Galliformes (as already proposed by Mayr [2000]); monophyly of the order is supported with Megapodiidae as the basal sister taxon with respect to the Cracidae and Phasianidae.

A new family of Eocene zygodactyl birds

The Pseudasturidae, a new family of small Lower to Middle Eocene zygodactyl birds is described in the Middle Eolithic of Grube Messel, near Darmstadt (Hessen, Germany), and the presence of large processus supraorbitales, which closely resemble the corresponding structures found in falconiform birds is characteristic.