@article{clarke_ksepka_smith_norell_2014, title={Combined phylogenetic analysis of a new North American fossil species confirms widespread Eocene distribution for stem rollers (vol 157, pg 586, 2009)}, volume={172}, number={1}, journal={Zoological Journal of the Linnean Society}, author={Clarke, J. A. and Ksepka, D. T. and Smith, N. A. and Norell, M. A.}, year={2014}, pages={226–229} }
 @article{ksepka_2014, title={Flight performance of the largest volant bird}, volume={111}, number={29}, journal={Proceedings of the National Academy of Sciences of the United States of America}, author={Ksepka, D. T.}, year={2014}, pages={10624–10629} }
 @article{thomas_ksepka_2013, title={A history of shifting fortunes for African penguins}, volume={168}, number={1}, journal={Zoological Journal of the Linnean Society}, author={Thomas, D. B. and Ksepka, D. T.}, year={2013}, pages={207–219} }
 @article{ksepka_clarke_nesbitt_kulp_grande_2013, title={Fossil evidence of wing shape in a stem relative of swifts and hummingbirds (Aves, Pan-Apodiformes)}, volume={280}, number={1761}, journal={Proceedings of the Royal Society of London. Series B}, author={Ksepka, D. T. and Clarke, J. A. and Nesbitt, S. J. and Kulp, F. B. and Grande, L.}, year={2013} }
 @article{ksepka_balanoff_bell_houseman_2013, title={Fossil grebes from the Truckee Formation (Miocene) of Nevada and a new phylogenetic analysis of Podicipediformes (Aves)}, volume={56}, number={5}, journal={Palaeontology}, author={Ksepka, D. T. and Balanoff, A. M. and Bell, M. A. and Houseman, M. D.}, year={2013}, pages={1149–1169} }
 @article{ksepka_clarke_2012, title={A new stem parrot from the Green River formation and the complex evolution of the grasping foot in Pan-Psittaciformes}, volume={32}, number={2}, journal={Journal of Vertebrate Paleontology}, author={Ksepka, D. T. and Clarke, J. A.}, year={2012}, pages={395–406} }
 @article{parham_donoghue_bell_calway_head_holroyd_inoue_irmis_joyce_ksepka_et al._2012, title={Best practices for justifying fossil calibrations}, volume={61}, number={2}, journal={Systematic Biology}, author={Parham, J. F. and Donoghue, P. C. J. and Bell, C. J. and Calway, T. D. and Head, J. J. and Holroyd, P. A. and Inoue, J. G. and Irmis, R. B. and Joyce, W. G. and Ksepka, D. T. and et al.}, year={2012}, pages={346–359} }
 @article{ksepka_balanoff_walsh_revan_ho_2012, title={Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus}, volume={166}, number={1}, journal={Zoological Journal of the Linnean Society}, author={Ksepka, D. T. and Balanoff, A. M. and Walsh, S. and Revan, A. and Ho, A.}, year={2012}, pages={202–219} }
 @article{ksepka_thomas_2012, title={Multiple cenozoic invasions of Africa by penguins (Aves, Sphenisciformes)}, volume={279}, number={1730}, journal={Proceedings of the Royal Society of London. Series B}, author={Ksepka, D. T. and Thomas, D. B.}, year={2012}, pages={1027–1032} }
 @article{ksepka_fordyce_ando_jones_2012, title={New fossil penguins (Aves, Sphenisciformes) from the Oligocene of New Zealand reveal the skeletal plan of stem penguins}, volume={32}, number={2}, journal={Journal of Vertebrate Paleontology}, author={Ksepka, D. T. and Fordyce, R. E. and Ando, T. and Jones, C. M.}, year={2012}, pages={235–254} }
 @article{ksepka_boyd_2012, title={Quantifying historical trends in the completeness of the fossil record and the contributing factors: an example using Aves}, volume={38}, number={1}, journal={Paleobiology}, author={Ksepka, D. T. and Boyd, C. A.}, year={2012}, pages={112–125} }
 @article{fordyce_ksepka_2012, title={The strangest bird}, volume={307}, number={5}, journal={Scientific American}, author={Fordyce, R. E. and Ksepka, D. T.}, year={2012}, pages={56–61} }
 @article{thomas_ksepka_fordyce_2011, title={Penguin heat-retention structures evolved in a greenhouse Earth}, volume={7}, number={3}, journal={Biology Letters}, author={Thomas, D. B. and Ksepka, D. T. and Fordyce, R. E.}, year={2011}, pages={461–464} }
 @article{nesbitt_ksepka_clarke_2011, title={Podargiform affinities of the enigmatic Fluvioviridavis platyrhamphus and the early diversification of strisores ("caprimulgiformes" plus apodiformes)}, volume={6}, number={11}, journal={PLoS One}, author={Nesbitt, S. J. and Ksepka, D. T. and Clarke, J. A.}, year={2011} }
 @article{ksepka_clarke_grande_2011, title={Stem parrots (Ayes, Halcyornithidae) from the green river formation and a combined phylogeny of pan-psittaciformes}, volume={85}, number={5}, journal={Journal of Paleontology}, author={Ksepka, D. T. and Clarke, J. A. and Grande, L.}, year={2011}, pages={835–852} }
 @article{ksepka_benton_carrano_gandolfo_head_hermsen_joyce_lamm_patane_phillips_et al._2011, title={Synthesizing and databasing fossil calibrations: divergence dating and beyond}, volume={7}, number={6}, journal={Biology Letters}, author={Ksepka, D. T. and Benton, M. J. and Carrano, M. T. and Gandolfo, M. A. and Head, J. J. and Hermsen, E. J. and Joyce, W. G. and Lamm, K. S. and Patane, J. S. L. and Phillips, M. J. and et al.}, year={2011}, pages={801–803} }
 @article{clarke_ksepka_salas-gismondi_altamirano_shawkey_d'alba_vinther_devries_baby_2010, title={Fossil evidence for evolution of the shape and color of penguin feathers}, volume={330}, number={6006}, journal={Science}, author={Clarke, J. A. and Ksepka, D. T. and Salas-Gismondi, R. and Altamirano, A. J. and Shawkey, M. D. and D'Alba, L. and Vinther, J. and DeVries, T. J. and Baby, P.}, year={2010}, pages={954–957} }
 @article{hou_li_ksepka_gao_norell_2010, title={Implications of flexible-shelled eggs in a Cretaceous choristoderan reptile}, volume={277}, number={1685}, journal={Proceedings of the Royal Society of London. Series B}, author={Hou, L. H. and Li, P. P. and Ksepka, D. T. and Gao, K. Q. and Norell, M. A.}, year={2010}, pages={1235–1239} }
 @article{ksepka_clarke_2010, title={New fossil mousebird (Aves: Coliiformes) with feather preservation provides insight into the ecological diversity of an Eocene North American avifauna}, volume={160}, number={4}, journal={Zoological Journal of the Linnean Society}, author={Ksepka, D. T. and Clarke, J. A.}, year={2010}, pages={685–706} }
 @article{ksepka_clarke_2010, title={Primobucco mcgrewi (Aves: Coracii) from the Eocene Green River Formation: Mew anatomical data from the earliest constrained record of stem rollers}, volume={30}, number={1}, journal={Journal of Vertebrate Paleontology}, author={Ksepka, D. T. and Clarke, J. A.}, year={2010}, pages={215–225} }
 @article{ksepka_clarke_2010, title={The basal penguin (Ayes: Sphenisciformes) perudyptes devriesi and a phylogenetic evaluation of the penguin fossil record}, number={337}, journal={Bulletin of the American Museum of Natural History}, author={Ksepka, D. T. and Clarke, J. A.}, year={2010}, pages={4-} }
 @article{ksepka_norell_2010, title={The illusory evidence for Asian Brachiosauridae: New material of Erketu ellisoni and a phylogenetic reappraisal of basal titanosauriformes}, number={3700}, journal={American Museum Novitates}, author={Ksepka, D. T. and Norell, M. A.}, year={2010}, pages={1–27} }
 @misc{ksepka_2009, title={Broken gears in the avian molecular clock: New phylogenetic analyses support stem galliform status for Gallinuloides wyomingensis and rallid affinities for Amitabha urbsinterdictensis}, volume={25}, number={2}, journal={Cladistics}, author={Ksepka, D. T.}, year={2009}, pages={173–197} }
 @article{clarke_ksepka_smith_norell_2009, title={Combined phylogenetic analysis of a new North American fossil species confirms widespread Eocene distribution for stem rollers (Aves, Coracii)}, volume={157}, ISSN={["1096-3642"]}, DOI={10.1111/j.1096-3642.2009.00550.x}, abstractNote={We report a nearly complete skeleton of a new species of stem roller (Aves, Coracii) from the early Eocene Green River Formation of North America. The new species is most closely related to two species-depauperate lineages, Coraciidae (rollers) and Brachypteraciidae (ground rollers), that form a monophyletic crown clade (Coracioidea) with an exclusively Old World extant distribution. Phylogenetic analysis utilizing a matrix of 133 morphological characters and sequence data from three genes (RAG-1, c-myc, and ND2) identifies the new species as a stem member of the Coracii more closely related to the crown clade than the only previously identified New World taxon, Primobucco mcgrewi. The phylogenetic placement of the new species and Primobucco mcgrewi indicates a widespread northern hemisphere distribution in the Eocene with subsequent restriction to Africa, Madagascar, Australia, and temperate to tropical parts of Europe and Asia. It provides evidence of further ecological diversity in early stem Coracii and convergence on crown morphologies. The new species contributes to mounting evidence that extant distributions for major avian subclades may be of comparatively recent origin. Further late Palaeogene sampling is needed to elucidate potential drivers for shifting avian distributions and disappearance of Coracii from North America.}, number={3}, journal={ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY}, author={Clarke, Julia A. and Ksepka, Daniel T. and Smith, N. Adam and Norell, Mark A.}, year={2009}, month={Nov}, pages={586–611} }
 @article{ksepka_clarke_devries_urbina_2008, title={Osteology of Icadyptes salasi, a giant penguin from the Eocene of Peru}, volume={213}, ISSN={["1469-7580"]}, DOI={10.1111/j.1469-7580.2008.00927.x}, abstractNote={Abstract}, number={2}, journal={JOURNAL OF ANATOMY}, author={Ksepka, Daniel T. and Clarke, Julia A. and DeVries, Thomas J. and Urbina, Mario}, year={2008}, month={Aug}, pages={131–147} }