1,721,053 research outputs found
Towards completion of the early Eocene aviary: A new bird group from the Messel oil shale (Aves, Eopachypterygidae, fam. nov.)
No full textMayr, Gerald (2015): Towards completion of the early Eocene aviary: A new bird group from the Messel oil shale (Aves, Eopachypterygidae, fam. nov.). Zootaxa 4013 (2): 252-264, DOI: 10.11646/zootaxa.4013.2.
A new avian species with tubercle-bearing cervical vertebrae from the Middle Eocene of Messel (Germany). In Proceedings of the VII International Meeting of the Society of Avian Paleontology and Evolution, ed. W.E. Boles and T.H. Worthy
No full textMayr, Gerald (2010): A New Avian Species with Tubercle-bearing Cervical Vertebrae from the Middle Eocene of Messel (Germany). Records of the Australian Museum 62 (1): 21-28, DOI: 10.3853/j.0067-1975.62.2010.1537, URL: http://dx.doi.org/10.3853/j.0067-1975.62.2010.153
Figure 6. Perplexicervix microcephalon n.gen. and n in A New Avian Species with Tubercle-bearing Cervical Vertebrae from the Middle Eocene of Messel (Germany)
No full textFigure 6. Perplexicervix microcephalon n.gen. and n.sp., foot. (A) holotype (SMF-ME 11211b), right side; (B) HLMD-Me 14996a, left side; (C) Pohl specimen, right side. Coated with ammonium chloride to enhance contrast; scale bars equal 5 mm.Published as part of Mayr, Gerald, 2010, A New Avian Species with Tubercle-bearing Cervical Vertebrae from the Middle Eocene of Messel (Germany), pp. 21-28 in Records of the Australian Museum 62 (1) on page 27, DOI: 10.3853/j.0067-1975.62.2010.1537, http://zenodo.org/record/467658
The phylogeny of charadriiform birds (shorebirds and allies) - reassessing the conflict between morphology and molecules
No full textMayr, Gerald (2011): The phylogeny of charadriiform birds (shorebirds and allies) - reassessing the conflict between morphology and molecules. Zoological Journal of the Linnean Society 161 (4): 916-934, DOI: 10.1111/j.1096-3642.2010.00654.x, URL: http://dx.doi.org/10.1111/j.1096-3642.2010.00654.
Figure 2 in The phylogeny of charadriiform birds (shorebirds and allies) - reassessing the conflict between morphology and molecules
No full textFigure 2. Previous hypotheses on the phylogeny of charadriiform birds based on analyses of morphological data. A, tree resulting from an analysis of 70 morphological characters by Strauch (1978). B, tree resulting from reanalysis of Strauch's data by Björklund (1994). C, tree resulting from reanalysis of Strauch's data by Chu (1995). D, tree resulting from an analysis of 2954 morphological characters by Livezey & Zusi (2007).Published as part of Mayr, Gerald, 2011, The phylogeny of charadriiform birds (shorebirds and allies) - reassessing the conflict between morphology and molecules, pp. 916-934 in Zoological Journal of the Linnean Society 161 (4) on page 918, DOI: 10.1111/j.1096-3642.2010.00654.x, http://zenodo.org/record/575744
Figure 5. Perplexicervix microcephalon n.gen. and n in A New Avian Species with Tubercle-bearing Cervical Vertebrae from the Middle Eocene of Messel (Germany)
No full textFigure 5. Perplexicervix microcephalon n.gen. and n.sp., selected skeletal elements. (A) extremitas omalis of right coracoid in ventral view (HLMD-Me 14996a); (B) cranial end of left scapula (HLMD-Me 14996b); (C) distal end of right humerus in cranial view (HLMD-Me 14996b); (D) left manus of holotype (SMF-ME 11211a); (E) left wing (HLMD-Me 14996a). Abbreviations: cmc—carpometacarpus, hum—humerus, pex—processus extensorius; tbc—tuberculum coracoideum, uln—ulna. Coated with ammonium chloride to enhance contrast; scale bars equal 5 mm.Published as part of Mayr, Gerald, 2010, A New Avian Species with Tubercle-bearing Cervical Vertebrae from the Middle Eocene of Messel (Germany), pp. 21-28 in Records of the Australian Museum 62 (1) on page 26, DOI: 10.3853/j.0067-1975.62.2010.1537, http://zenodo.org/record/467658
Figure 2. Perplexicervix microcephalon n.gen. and n in A New Avian Species with Tubercle-bearing Cervical Vertebrae from the Middle Eocene of Messel (Germany)
No full textFigure 2. Perplexicervix microcephalon n.gen. and n.sp., skull (A–C) and cervical vertebrae (D, E). (A) SMF-ME 3548 (ventral view); (B) holotype (SMF-ME 11211a; dorsal view); (C) SMF-ME 10846a (lateral view); (D) holotype (SMF-ME 11211a); (E) referred specimen SMF-ME 10846a. Abbreviations: ax—axis, dep—depressions on cranium (see text), hyo—hyoid bone, lrm—left ramus mandibulae, pbp—processus basipterygoideus, rrm—right ramus mandibulae, tac—tuba auditiva communis. Coated with ammonium chloride to enhance contrast; scale bars equal 5 mm.Published as part of Mayr, Gerald, 2010, A New Avian Species with Tubercle-bearing Cervical Vertebrae from the Middle Eocene of Messel (Germany), pp. 21-28 in Records of the Australian Museum 62 (1) on page 23, DOI: 10.3853/j.0067-1975.62.2010.1537, http://zenodo.org/record/467658
Figure 2. Archaeopteryx siemensii Dames, 1897 in The tenth skeletal specimen of Archaeopteryx
No full textFigure 2. Archaeopteryx siemensii Dames, 1897, Thermopolis specimen (WDC-CSG-100). Ultraviolet-induced fluorescence photograph showing the preserved bone substance.Published as part of Mayr, Gerald, Pohl, Burkhard, Hartman, Scott & Peters, D. Stefan, 2007, The tenth skeletal specimen of Archaeopteryx, pp. 97-116 in Zoological Journal of the Linnean Society 149 (1) on page 99, DOI: 10.1111/j.1096-3642.2006.00245.x, http://zenodo.org/record/542763
Morphological evidence for sister group relationship between flamingos (Aves: Phoenicopteridae) and grebes (Podicipedidae)
No full textFigure 2. Proximal end of right humerus (A–D) and proximal phalanx of major digit (E–I) in comparison. (A) Phoenicopterus chilensis (Phoenicopteridae); (B) Palaelodus sp. (Palaelodidae, SMF Av 191a); (C) Tachybaptus ruficollis (Podicipedidae); (D) Eudocimus ruber (Threskiornithidae); (E) Juncitarsus merkeli (cast of holotype in SMF, coated with ammonium chloride); (F) Phoenicopterus ruber (Phoenicopteridae); (G) Palaelodus sp. (Palaelodidae, SMF Av 274g); (H) Aechmophorus occidentalis (Podicipedidae); (I) Eudocimus ruber (Threskiornithidae). The arrows indicate the marked depression at the attachment site of musculus scapulohumeralis cranialis (character 41). Not to scale.Published as part of Mayr, Gerald, 2004, Morphological evidence for sister group relationship between flamingos (Aves: Phoenicopteridae) and grebes (Podicipedidae), pp. 157-169 in Zoological Journal of the Linnean Society 140 (2) on page 160, DOI: 10.1111/j.1096-3642.2003.00094.x, http://zenodo.org/record/543917
Figure 8 in On the osteology and phylogenetic affinities of the Pseudasturidae - Lower Eocene stem-group representatives of parrots (Aves, Psittaciformes)
No full textFigure 8. Phylogenetic relationships between the Pseudasturidae Mayr (1998a), the Eocene Quercypsittidae Mourer- Chauviré (1992), the Eocene psittaciform taxon Psittacopes Mayr & Daniels (1998) and the crown-group Psittacidae. (A) the phylogeny proposed in this study; (B) the result of a cladistic analysis by Dyke & Cooper (2000). The nodes in (A) are supported by the following derived characters: Node 1: (1) corpus of cranial thoracic vertebrae strongly mediolaterally compressed; (2) proximal end of tibiotarsus with ridge along medial side, opposite to crista fibularis; (3) distal end of tibiotarsus with proximo-distally short condyles which are separated by a wide incisura intercondylaris; (4) trochlea metatarsi III much wider in mediolateral than in dorsoplantar direction, with a distinct groove between the rims, dorsal surface not significantly raised above dorsal surface of the shaft; (5) furrow on distal end of tarsometatarsus, between dorsal side of trochlea metatarsi IV and incisura intertrochlearis lateralis. Node 2: (1) furrow for tendon of musculus flexor perforatus digiti IV between trochlea accessoria and trochlea metatarsi III.Published as part of Mayr, Gerald, 2002, On the osteology and phylogenetic affinities of the Pseudasturidae - Lower Eocene stem-group representatives of parrots (Aves, Psittaciformes), pp. 715-729 in Zoological Journal of the Linnean Society 136 (4) on page 726, DOI: 10.1046/j.1096-3642.2002.00042.x, http://zenodo.org/record/543712
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