1,721,001 research outputs found
(Reptilia: Archosauriformes)
No full textNesbitt, Sterling J., Stocker, Michelle R., Small, Bryan J., Downs, Alex (2009): The osteology and relationships of Vancleavea campi (Reptilia: Archosauriformes). Zoological Journal of the Linnean Society 157 (4): 814-864, DOI: 10.1111/j.1096-3642.2009.00530.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2009.00530.
Figure 18 in The osteology and relationships of Vancleavea campi (Reptilia: Archosauriformes)
No full textFigure 18. The articulated skeleton referred to Vancleavea campi (GR 138) covered in osteoderms. The enlarged drawings illustrate the five different morphologies of the osteoderms discussed in this paper: throat (A), ventral (B), appendicular (C), lateral (D) and dorsal caudal (E) osteoderms. The tail osteoderms and lateral and dorsal caudal osteoderms are highlighted (F). Scale bar, 10 cm for the skeleton. The osteoderms are not to scale.Published as part of Nesbitt, Sterling J., Stocker, Michelle R., Small, Bryan J. & Downs, Alex, 2009, The osteology and relationships of Vancleavea campi (Reptilia: Archosauriformes), pp. 814-864 in Zoological Journal of the Linnean Society 157 (4) on page 836, DOI: 10.1111/j.1096-3642.2009.00530.x, http://zenodo.org/record/544311
FIG. 4 in New data on the Triassic temnospondyls from the Karoo rift basins of Tanzania and Zambia
No full textFIG. 4. — Partial mandible of Stereospondyli (NHCC LB678) from the Triassic (?Anisian) of Zambia (Luangwa Basin) in labial (A), dorsal (B) and lingual (C) views. Abbreviations: cor1, coronoid 1; cor2, coronoid 2; d, dentary. Scale bar: 10 mm. Modified from Peecook et al. 2018.Published as part of Steyer, Jean-Sébastien, Peecook, Brandon R., Arbez, Thomas, Nesbitt, Sterling J., Tolan, Steve, Stocker, Michelle R., Smith, Roger M. H., Angielczyk, Kenneth D. & Sidor, Christian A., 2021, New data on the Triassic temnospondyls from the Karoo rift basins of Tanzania and Zambia, pp. 365-376 in Geodiversitas 43 (12) on page 370, DOI: 10.5281/zenodo.490629
Extended Data Fig. 2 in New reptile shows dinosaurs and pterosaurs evolved among diverse precursors
No full textExtended Data Fig. 2 | Life and skull reconstruction of Venetoraptor gassenae gen. et sp. nov. (CAPPA/UFSM 0356). a, Skull reconstruction in left lateral view according to the preserved bones of the holotype.b, Head reconstruction in left lateral view. c, Head reconstruction in left anterolateral view.Life reconstruction by Caio Fantini.Published as part of Müller, Rodrigo T., Ezcurra, Martín D., Garcia, Mauricio S., Agnolín, Federico L., Stocker, Michelle R., Novas, Fernando E., Soares, Marina B., Kellner, Alexander W. A. & Nesbitt, Sterling J., 2023, New reptile shows dinosaurs and pterosaurs evolved among diverse precursors, pp. 589-594 in Nature 620 (7974) on page 599, DOI: 10.1038/s41586-023-06359-z, http://zenodo.org/record/826309
FIG. 6 in New data on the Triassic temnospondyls from the Karoo rift basins of Tanzania and Zambia
No full textFIG. 6. — Intercentrum of Mastodonsauroidea (NMT RB537) from the Triassic (?Anisian) of Tanzania (Ruhuhu Basin) in posterior (A) and lateral (B) views; C, μCT- scan radiography. Abbreviations: par, parapophyses. Scale bars: 5 cm.Published as part of Steyer, Jean-Sébastien, Peecook, Brandon R., Arbez, Thomas, Nesbitt, Sterling J., Tolan, Steve, Stocker, Michelle R., Smith, Roger M. H., Angielczyk, Kenneth D. & Sidor, Christian A., 2021, New data on the Triassic temnospondyls from the Karoo rift basins of Tanzania and Zambia, pp. 365-376 in Geodiversitas 43 (12) on page 372, DOI: 10.5281/zenodo.490629
Figure 10. Ebrachosuchus neukami Kuhn, 1936, BSPG 1931 X 501 in Redescription of the phytosaurs Paleorhinus ('Francosuchus') angustifrons and Ebrachosuchus neukami from Germany, with implications for Late Triassic biochronology
No full textFigure 10. Ebrachosuchus neukami Kuhn, 1936, BSPG 1931 X 501. Interpretive line drawings of holotype skull in dorsal (A), ventral (B), posterior (C), and left lateral (D) views. Dark grey areas represent sediment. Light grey areas represent recessed areas of bone (antorbital fossa). Cross hatched areas are broken or restored surfaces. Abbreviations: afen, antorbital fenestra; afos, antorbital fossa; bo, basoccipital; bsp, basisphenoid; bt, basal tubera; cho, choana; cr, crown; ect, ectopterygoid; en, external naris; fm, foramen magnum; fo, fossa; fr, frontal; itf, infratemporal fenestra; jg, jugal; lc, lacrimal; max, maxilla; na, nasal; orb, orbit; pa, parietal; pal, palatine; par, paroccipital process; pm, premaxilla; po, postorbital; pof, postfrontal; prf, prefrontal; pt, pterygoid; ptf, posttemporal foramen; qd, quadrate; qf, quadrate foramen; qj, quadratojugal; sm, 'septomaxilla'; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra; sub, suborbital fenestra; v, vomer.Published as part of Butler, Richard J., Rauhut, Oliver W. M., Stocker, Michelle R. & Bronowicz, Robert, 2014, Redescription of the phytosaurs Paleorhinus ('Francosuchus') angustifrons and Ebrachosuchus neukami from Germany, with implications for Late Triassic biochronology, pp. 155-208 in Zoological Journal of the Linnean Society 170 (1) on page 182, DOI: 10.1111/zoj.12094, http://zenodo.org/record/530086
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Paleoneurology of early archosauriforms and pseudosuchians
No full textPaleoneurology is a branch of paleontology that is dedicated to the study of the anatomy and evolution of the nervous system of extinct animals. You are reading the introduction to this book about paleoneurology because you are a descendent of a long line of primate ancestors that had evolved progressively larger brains, and that were eventually able to communicate using symbolic written language. However, humans are not the only animals to have evolved relatively large brains. Trends towards brain enlargement have long been known in other vertebrate lineages, such as other mammals, and also in reptiles. Furthermore, throughout the evolution of amniotes there has been a brain size increase that corresponded, mainly, to an increase of the cerebrum with the highest encephalization observed in avian dinosaurs (birds) and mammals (e.g. Bruce 2007; Balanoff et al. 2014; Güntürkün et al. 2020; Smaers et al. 2021). Investigating patterns of brain evolution in other vertebrates offers a window on how human intelligence may have evolved, but the evolution of the brain and senses in those groups is fascinating in its own right. Primate and hominid brain evolution have been the subject of many previous volumes, and this book focuses on the state of knowledge of the paleoneurology in those other amniote groups (Fig. 1.1).Fil: Von Baczko, Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Desojo, Julia Brenda. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Trotteyn, Maria Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; ArgentinaFil: Stocker, Michelle R.. No especifíca
Paleorhinus WILLISTON 1904
No full text<i>PALEORHINUS</i> WILLISTON, 1904 <p> <i>Type species:</i> <i>Paleorhinus bransoni</i> Williston, 1904. <i>Diagnosis:</i> Characterized by the following autapomorphies: discrete anteroposteriorly extending row of 6–7 slightly raised nodes on the lateral surface of the jugal; low paired ridges on lateral surface of squamosal enclosing a shallow, slit-like fossa.</p> <p> <i>Comments: Paleorhinus</i> is a historically problematic wastebasket taxon that is in need of a full revision that is beyond the scope of the present paper. Here, we merely report characters that appear to be uniquely shared between the genotype species, <i>Paleorhinus bransoni</i>, and ‘ <i>Francosuchus</i> ’ <i>angustifrons</i> and thus support referral of the latter to the genus <i>Paleorhinus</i> (see Phylogenetic Analysis, below). An assessment of whether <i>Paleorhinus</i> is a subjective junior synonym of <i>Parasuchus</i> is beyond the scope of this work (see above).</p>Published as part of <i>Butler, Richard J., Rauhut, Oliver W. M., Stocker, Michelle R. & Bronowicz, Robert, 2014, Redescription of the phytosaurs Paleorhinus (' Francosuchus') angustifrons and Ebrachosuchus neukami from Germany, with implications for Late Triassic biochronology, pp. 155-208 in Zoological Journal of the Linnean Society 170 (1)</i> on page 162, DOI: 10.1111/zoj.12094, <a href="http://zenodo.org/record/5300860">http://zenodo.org/record/5300860</a>
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