Skeleton of a New Owl from the Early Eocene of North America (Aves, Strigiformes) with an Accipitrid-Like Foot Morphology

@article{Mayr2020SkeletonOA,
  title={Skeleton of a New Owl from the Early Eocene of North America (Aves, Strigiformes) with an Accipitrid-Like Foot Morphology},
  author={Gerald Mayr and Philip D. Gingerich and Thierry Smith},
  journal={Journal of Vertebrate Paleontology},
  year={2020},
  volume={40}
}
ABSTRACT We describe a partial skeleton of a large-sized owl from Wasatchian strata of the Willwood Formation (Wyoming, U.S.A.). The holotype of Primoptynx poliotauros, gen. et sp. nov., includes all major postcranial bones and is one of the most substantial Paleogene records of the Strigiformes. The fossil shows that owls exhibited a considerable morphological diversity in the early Eocene of North America and occupied disparate ecological niches. As in the protostrigid taxon Minerva from the… 

A partial skeleton of a new species of Tynskya Mayr, 2000 (Aves, Messelasturidae) from the London Clay highlights the osteological distinctness of a poorly known early Eocene “owl/parrot mosaic”

Three-dimensionally preserved bones of a new species of Tynskya, T. waltonensis, are reported from the London Clay of Walton-on-the-Naze and provide new insights into the skeletal morphology of messelasturids.

The coracoscapular joint of neornithine birds—extensive homoplasy in a widely neglected articular surface of the avian pectoral girdle and its possible functional correlates

In taxa with a large crop, a flat facies articularis scapularis is likely to be associated with a reorganization of the pectoral musculature, whereas in procellariiform birds, the transition from a cotyla to a faciesArticularis appears to have been correlated with the capacity for sustained soaring without wing flapping.

On the occurrence of lateral openings and fossae (pleurocoels) in the thoracic vertebrae of neornithine birds and their functional significance

  • G. Mayr
  • Biology, Environmental Science
    Vertebrate Zoology
  • 2021
It is hypothesized that pleurocoels primarily serve to increase the structural resistance of the vertebral body and were reduced multiple times in neornithine birds.

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