1,721,060 research outputs found
Figure 11 in Avian brain evolution: new data from Palaeogene birds (Lower Eocene) from England
No full textFigure 11. Fossil endocast of 'Numenius' gypsorum from the Upper Eocene of the Paris Basin (MNHN AC7992). A, endocast in dorsal view showing the poor lateral development of the rostrally positioned eminentia sagittalis. B, line trace of the endocast in caudal view showing the poor dorsal development of the eminentia sagittalis. See text for abbreviations.Published as part of Milner, Angela C. & Walsh, Stig A., 2009, Avian brain evolution: new data from Palaeogene birds (Lower Eocene) from England, pp. 198-219 in Zoological Journal of the Linnean Society 155 (1) on page 215, DOI: 10.1111/j.1096-3642.2008.00443.x, http://zenodo.org/record/544600
Figure 7 in Avian brain evolution: new data from Palaeogene birds (Lower Eocene) from England
No full textFigure 7. Virtual endocranial cast of Prophaethon shrubsolei. A, expanded view of the dorsal surface of the telencephalon, showing the shape and extent of the eminentia sagittalis. The eminentia sagittalis of this species is similar to living birds, but is not well developed dorsally. B, ventral view of virtual endocast. See text for list of anatomical abbreviations.Published as part of Milner, Angela C. & Walsh, Stig A., 2009, Avian brain evolution: new data from Palaeogene birds (Lower Eocene) from England, pp. 198-219 in Zoological Journal of the Linnean Society 155 (1) on page 208, DOI: 10.1111/j.1096-3642.2008.00443.x, http://zenodo.org/record/544600
Figure 8 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
No full textFigure 8. Virtual endocasts of the brain and labyrinth of A, Paraptenodytes antarcticus (fossil stem penguin) and B, Aptenodytes patagonicus (king penguin) in lateral aspect, illustrating relative size of the labyrinth.Published as part of Ksepka, Daniel T., Balanoff, Amy M., Walsh, Stig, Revan, Ariel & Ho, Amy, 2012, Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus, pp. 202-219 in Zoological Journal of the Linnean Society 166 on page 213, DOI: 10.1111/j.1096-3642.2012.00835.x, http://zenodo.org/record/540819
Figure 10 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
No full textFigure 10. Log-log plots of A, total endocranial volume and body size; B, cerebral volume and body size; C, cerebral volume and total endocranial volume. Closed circles indicate penguin taxa. Paraptenodytes is shown as a closed star. All other avian taxa are indicated by open circles. Dashed lines indicate 95% confidence intervals.Published as part of Ksepka, Daniel T., Balanoff, Amy M., Walsh, Stig, Revan, Ariel & Ho, Amy, 2012, Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus, pp. 202-219 in Zoological Journal of the Linnean Society 166 on page 214, DOI: 10.1111/j.1096-3642.2012.00835.x, http://zenodo.org/record/540819
Avian brain evolution: new data from Palaeogene birds (Lower Eocene) from England
No full textFigure 4. Virtual endocranial cast of Odontopteryx toliapica. A, expanded view of the dorsal surface of the telencephalon, showing the shape and extent of the poorly developed eminentia sagittalis. B, ventral view of virtual endocast. See text for list of anatomical abbreviations.Published as part of Milner, Angela C. & Walsh, Stig A., 2009, Avian brain evolution: new data from Palaeogene birds (Lower Eocene) from England, pp. 198-219 in Zoological Journal of the Linnean Society 155 (1) on page 204, DOI: 10.1111/j.1096-3642.2008.00443.x, http://zenodo.org/record/544600
Figure 1. A in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
No full textFigure 1. A, simplified phylogeny of penguins after Ksepka et al. (2006) showing relationships of outgroup taxa, the stem penguin Paraptenodytes antarcticus, and crown clade (Spheniscidae) penguins studied here. B, the fossil skull of Pa. antarcticus (AMNH 3338) reconstructed and rendered from computed tomography scan data. Abbreviation: r, metal rod inserted to display specimen.Published as part of Ksepka, Daniel T., Balanoff, Amy M., Walsh, Stig, Revan, Ariel & Ho, Amy, 2012, Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus, pp. 202-219 in Zoological Journal of the Linnean Society 166 on page 204, DOI: 10.1111/j.1096-3642.2012.00835.x, http://zenodo.org/record/540819
Figure 7 in New species of mammaliaform and the cranium of Borealestes (Mammaliformes: Docodonta) from the Middle Jurassic of the British Isles
No full textFigure 7. Diagnostic mandibular features of Borealestes species. A1, A2, dentaries belong to Borealestes serendipitus, showing diagnostic features of Meckel's sulcus and mandibular symphysis. Bottom dentary (B), belongs to Borealestes cuillinensis. Shows diagnostic features of Meckel's sulcus and mandibular symphysis. Scale bar equals 1 mm, scale same throughout.Published as part of Panciroli, Elsa, Benson, Roger B. J., Fernandez, Vincent, Butler, Richard J., Fraser, Nicholas C., Luo, Zhe-Xi & Walsh, Stig, 2021, New species of mammaliaform and the cranium of Borealestes (Mammaliformes: Docodonta) from the Middle Jurassic of the British Isles, pp. 1323-1362 in Zoological Journal of the Linnean Society 192 (4) on page 1335, DOI: 10.1093/zoolinnean/zlaa144, http://zenodo.org/record/585606
Figure 7 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
No full textFigure 7. Virtual endocasts of the labyrinth of A, Gavia immer (common loon); B, Phoebastria immutabilis (Laysan albatross); C, Paraptenodytes antarcticus (fossil stem penguin); D, Spheniscus humboldti (Humboldt penguin); E, Aptenodytes patagonicus (king penguin); and F, Pygoscelis antarctica (chinstrap penguin) in posterior aspect. Abbreviations: aa, ampulla of anterior semicircular canal; asc, anterior semicircular canal; cc, common crus; ed, endolymphatic duct; ha, ampulla of horizontal semicircular canal; hsc, horizontal semicircular canal; lc, lagenar canal; pa, ampulla of posterior semicircular canal; psc, posterior semicircular canal; vf, vestibular foramen.Published as part of Ksepka, Daniel T., Balanoff, Amy M., Walsh, Stig, Revan, Ariel & Ho, Amy, 2012, Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus, pp. 202-219 in Zoological Journal of the Linnean Society 166 on page 212, DOI: 10.1111/j.1096-3642.2012.00835.x, http://zenodo.org/record/540819
Figure 5 in Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus
No full textFigure 5. Virtual endocasts of A, Gavia immer (common loon); B, Phoebastria immutabilis (Laysan albatross); C, Paraptenodytes antarcticus (fossil stem penguin); D, Spheniscus humboldti (Humboldt penguin); E, Aptenodytes patagonicus (king penguin); and F, Pygoscelis antarctica (chinstrap penguin) in ventral aspect. Abbreviations: c, cerebrum; cca, cranial carotid artery; fl, floccular lobe; ob, olfactory bulb; ol, optic lobe; pb, pituitary body; II-XI, cranial nerves II-XI.Published as part of Ksepka, Daniel T., Balanoff, Amy M., Walsh, Stig, Revan, Ariel & Ho, Amy, 2012, Evolution of the brain and sensory organs in Sphenisciformes: new data from the stem penguin Paraptenodytes antarcticus, pp. 202-219 in Zoological Journal of the Linnean Society 166 on page 210, DOI: 10.1111/j.1096-3642.2012.00835.x, http://zenodo.org/record/540819
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