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Relevant bibliographies by topics / Ankylosaur

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Academic literature on the topic 'Ankylosaur'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

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Journal articles on the topic "Ankylosaur"

1

Arbour, Victoria M., Derek Larson, Matthew Vavrek, Lisa Buckley, and David Evans. "An ankylosaurian dinosaur from the Cenomanian Dunvegan Formation of northeastern British Columbia, Canada." Fossil Record 23, no. 2 (2020): 179–89. http://dx.doi.org/10.5194/fr-23-179-2020.

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Abstract. Fragmentary but associated dinosaur bones collected in 1930 from the Pine River of northeastern British Columbia are identified here as originating from an ankylosaur. The specimen represents only the second occurrence of dinosaur skeletal material from the Cenomanian Dunvegan Formation and the first from Dunvegan outcrops in the province of British Columbia. Nodosaurid ankylosaur footprints are common ichnofossils in the formation, but the skeletal material described here is too fragmentary to confidently assign to either a nodosaurid or ankylosaurid ankylosaur. The Cenomanian is a time of major terrestrial faunal transitions in North America, but many localities of this age are located in the southern United States; the discovery of skeletal fossils from the Pine River demonstrates the potential for the Dunvegan Formation to produce terrestrial vertebrate fossils that may provide important new data on this significant transitional period during the Cretaceous.

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Arbour, Victoria M., and Jordan C. Mallon. "Unusual cranial and postcranial anatomy in the archetypal ankylosaur Ankylosaurus magniventris." FACETS 2, no. 2 (2017): 764–94. http://dx.doi.org/10.1139/facets-2017-0063.

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Ankylosaurus magniventris is an iconic dinosaur species often depicted in popular media. It is known from relatively fragmentary remains compared with its earlier and smaller relatives such as Euoplocephalus and Anodontosaurus. Nevertheless, the known fossils of Ankylosaurus indicate that it had diverged significantly in cranial and postcranial anatomy compared with other Laramidian ankylosaurines. In particular, the dentition, narial region, tail club, and overall body size differ substantially from other Campanian–Maastrichtian ankylosaurines. We review the anatomy of this unusual ankylosaur using data from historic and newly identified material and discuss its palaeoecological implications.

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Norman, David B., and Tamsin Faiers. "On the first partial skull of an ankylosaurian dinosaur from the Lower Cretaceous of the Isle of Wight, southern England." Geological Magazine 133, no. 3 (1996): 299–310. http://dx.doi.org/10.1017/s0016756800009031.

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AbstractThe specimen is identified as the partial cranium of a nodosaurid ankylosaur (Ornithischia: Thyreophora) on the basis of the presence of bone which is fused to the dorsal surface of the skull and has secondarily closed the upper temporal fenestrae. The only unequivocally nodosaurid material recovered from the Isle of Wight to date comes from Wealden facies, and has been referred to the genus Polacanthus; it is considered highly probable that this new skull is referable to the same genus. Despite having undergone abrasion, through post-emergence water-rolling, the skull and cranial walls have proved to be relatively informative of the general anatomy of the braincase and the neural and vascular anatomy of this part of the head. The anatomy of the braincase of most ankylosaurs (with the notable exception of the juvenile specimens of the ankylosaurid Pinacosaurus) is surprisingly poorly known, despite the relative abundance of cranial material in North American and Asian collections.The cranial neural and vascular anatomy is well shown in this specimen and enables the first detailed description of nodosaurid endocranial structures. The general form of the brain can be outlined from the structure of the endocast and the principal lobes can be identified; the majority of the cranial nerves have been identified, and a significant component of the associated vascular system is also visible. In most respects the endocast shows a neural anatomy which is common to that known in most dinosaurs. When compared to their nearest relatives, the ankylosaurid ankylosaurs (Euoplocephalus), the nodosaurid endocranial cast shows a more pronounced cerebral flexure, a forebrain which is broader and more expanded dorsally, and a more prominent cerebellum (although there is no evidence for a floccular lobe); there are minor differences in the arrangement of the cranial nerves, and the dorsal portions of the vascular system are better shown.Because of erosion, the olfactory lobes of this specimen of cf. Polacanthus are not preserved, and cannot be compared to those of ankylosaurid ankylosaurs; the latter are unusual in the strong separation of the lobes (reflected in the divergent olfactory stalks); this feature may be associated with the very complex passages within the nasal region of the skull, which are lacking in the nodosaurids described to date.

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Apesteguía, Sebastián, and Pablo A. Gallina. "Tunasniyoj, a dinosaur tracksite from the Jurassic-Cretaceous boundary of Bolivia." Anais da Academia Brasileira de Ciências 83, no. 1 (2011): 267–77. http://dx.doi.org/10.1590/s0001-37652011000100015.

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Here we report a superbly preserved and profusely represented five-ichnotaxa dinosaur track assemblage near Icla village, 100 km southeast of Sucre, Bolivia. As preserved in reddish Jurassic-Cretaceous boundary aeolian sandstones, this rich and uncommon assemblage is, additionally, the oldest dinosaur tracksite for Bolivia. Four trackmakers were identified in the area: three quadrupedal and one bipedal, all of them with tracks of around 35 cm in lenght. One of the quadrupedals is represented by no less than five adult individuals (ichnotaxon A), and four purported juveniles (ichnotaxon B) walking in association. The other two quadrupedals (ichnotaxa C and D) involve four trackways, and the last, the bipedal trackmaker (ichnotaxon E), is represented by one trackway. The five ichnotaxa represented in the "Palmar de Tunasniyoj" could be tentatively assigned to the following trackmakers: Ichnotaxa A and B are assigned to basal stegosaurians; ichnotaxon C to a basal tyreophoran, perhaps related to the ankylosaur lineage; ichnotaxon D to the Ankylosauria, and ichnotaxon E to Theropoda. The Tunasniyoj assemblage, the oldest dinosaur tracksite for Bolivia, includes the oldest known evidence assigned to ankylosaurs and stegosaurs for South America.

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Arbour, Victoria M., Michael E. Burns, and Philip J. Currie. "A review of pelvic shield morphology in ankylosaurs (Dinosauria: Ornithischia)." Journal of Paleontology 85, no. 2 (2011): 298–302. http://dx.doi.org/10.1666/10-071.1.

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The pelvic shield of ankylosaurian dinosaurs refers to an area of osteoderms lacking differentiated transverse bands over the pelvic region and it is used as a diagnostic character for various ankylosaur groups. The pelvic shield character varies across ankylosaur taxa but is typically coded as a binary character or is excluded from phylogenetic analyses, which obscures evolutionary trends and relationships. This study investigates for the first time pelvic shield morphology in a stratigraphic and geographic context. This paper comprehensively reviews pelvic shield morphology with firsthand observations of specimens, and proposes three categories of pelvic shield morphology. Category 1 pelvic shields have un-fused but tightly interlocking osteoderms. Category 2 pelvic shields have fused osteoderms forming rosettes and are restricted to the Late Jurassic to mid Cretaceous of North America and Europe. Category 3 pelvic shields have fused polygonal osteoderms of similar size, and are found in the mid- to Late Cretaceous of North America. Although the pelvic shield is used to characterize the Polacanthidae, an interpretation supported by this review, the validity of such a clade is dependent upon a global parsimony analysis incorporating this character. Future analyses of the Ankylosauria should incorporate a more detailed treatment of the pelvic shield to determine its diagnostic value within the group.

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Xu, Xing, Xiao-Lin Wang, and Hai-Lu You. "A juvenile ankylosaur from China." Naturwissenschaften 88, no. 7 (2001): 297–300. http://dx.doi.org/10.1007/s001140100233.

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7

Parsons, William L., and Kristen M. Parsons. "A new ankylosaur (Dinosauria: Ankylosauria) from the Lower Cretaceous Cloverly Formation of central Montana." Canadian Journal of Earth Sciences 46, no. 10 (2009): 721–38. http://dx.doi.org/10.1139/e09-045.

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A cranium and other associated skeletal elements representing a new ankylosaurid dinosaur, Tatankacephalus cooneyorum gen. et sp. nov. possess several diagnostic features that indicate that this new taxon differs from the only other known ankylosaur from the Cloverly Formation, Sauropelta edwardsorum . These features include a frontoparietal dome, an enlarged nuchal ridge that obscures the occipital region, a circular orbit, ventral curvature in the posterolaterally directed paroccipital processes, a posteroventrally directed foramen magnum, and a number of features on the braincase. The phylogenetic analysis positions Tatankacephalus with Ankylosauridae based on its sharing of several characters with other members of this clade, including an enlarged nuchal segment that obscures the occiput in dorsal view, a ventrally curving lateral profile of the cranium anterior to the orbit, pyramidal postorbital boss, laterally projecting pyramidal quadratojugal boss, the presence of a postocular shelf, the presence of paranasal sinuses, and the lack of a cingulum on a maxillary (or dentary) tooth. It is considered a basal member of Ankylosauridae because it retains premaxillary teeth and a visible lateral temporal fenestra, in contrast to the absence of premaxillary teeth and an obscured lateral temporal fenestra in younger members of this clade.

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Carpenter, Kenneth, Tony DiCroce, Billy Kinneer, and Robert Simon. "Pelvis of Gargoyleosaurus (Dinosauria: Ankylosauria) and the Origin and Evolution of the Ankylosaur Pelvis." PLoS ONE 8, no. 11 (2013): e79887. http://dx.doi.org/10.1371/journal.pone.0079887.

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Rodríguez-de la Rosa, Rubén A., María Patricia Velasco-de León, Javier Arellano-Gil, and Diego Enrique Lozano-Carmona. "Middle Jurassic ankylosaur tracks from Mexico." Boletín de la Sociedad Geológica Mexicana 70, no. 2 (2018): 379–95. http://dx.doi.org/10.18268/bsgm2018v70n2a8.

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Molnar, Ralph E., and H. Trevor Clifford. "Gut contents of a small ankylosaur." Journal of Vertebrate Paleontology 20, no. 1 (2000): 194–96. http://dx.doi.org/10.1671/0272-4634(2000)020[0194:gcoasa]2.0.co;2.

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Dissertations / Theses on the topic "Ankylosaur"

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Vickaryous, Matthew K. "Skull morphology of the Ankylosauria." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq64985.pdf.

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Senne, Isabell Barbara. "Effekte der Ganzkörperkältekammer bei Patienten mit Spondylitis ankylosans." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=965423905.

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Zeller, Anita. "Klinik, Diagnose, Therapie und Krankheitslast der Spondylitis ankylosans in Deutschland." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-127879.

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Parish, Jolyon C. "The evolution and palaeobiology of the armoured dinosaurs (Ornithischia: Ankylosauria)." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419324.

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Sahly, Hany [Verfasser]. "Seroepidemiologische und zellbiologische Untersuchungen zur Rolle von Klebsiella-Serotypen in der HLA-B27-assoziierten Spondylitis ankylosans (Morbus Bechterew) / Hany Sahly." Aachen : Shaker, 2003. http://d-nb.info/117261539X/34.

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Wittwer, Heidrun. "Therapie der Spondylitis ankylosans mit dem monoklonalen chimären anti-TNF-Antikörper Infliximab (Remicade®):Klinische Wirksamkeit und Einfluss auf die HLA-Oberflächenexpression auf Lymphozyten mit besonderer Berücksichtigung von HLA-B27." Diss., lmu, 2004. http://nbn-resolving.de/urn:nbn:de:bvb:19-23157.

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7

Sissons, Robin L. "Ankylosaur (Dinosauria, Ankylosauria) foot morphology and an assessment of the function of the limbs and feet." Master's thesis, 2011. http://hdl.handle.net/10048/1932.

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Morphology and function of ankylosaur dinosaur limbs are explored and analyzed using comparative morphology and finite element analysis. Reconstruction of the forelimb and posture of Pinacosaurus grangeri matches well with trackways attributed to ankylosaurs. A flexed humerus angled away from the body, perpendicular radius and ulna, and upright metacarpus forming an arch proximally result in a crescent configuration of the manus, and a semi-supinated posture relative to the main axis of the body. The ankylosaurid metatarsus has a twisted proximal articular surface, metatarsals being optimally adapted for bearing weight at increasing angles, from medial to lateral. Metatarsal counts of Thyreophorans and other basal ornithischians do not match well with currently accepted phylogeny of these taxa, indicating that a revised phylogeny should be considered. Finite element analysis results, the twisted proximal articular surface, and other morphological features support a rolling motion in the foot while pushing off in locomotion. This is perhaps an adaptation to cope with the wide hips of ankylosaurids, bringing the pes closer to the midline of the animal during locomotion to increase maneuverability.<br>Systematics and Evolution

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Burns, Michael. "External and internal structure of ankylosaur (Dinosauria; Ornithischia) osteoderms." Master's thesis, 2010. http://hdl.handle.net/10048/1295.

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Here I assess the use of osteoderms in systematics with comparative material from fossil and extant tetrapod taxa. Putative differences among three groups (ankylosaurid, nodosaurid, and polacanthid) were evaluated. Archosaur osteoderms have cortices surrounding a cancellous core. Ankylosaurs are united by a superficial cortex distinguishable from the core, lack of Sharpeys fibers, and mineralized structural fibers. Nododsaurids lack a deep cortex and have dense superficial cortical fibres. Ankylosaurid osteoderms are thinner than those of other ankylosaurs. Polacanthids (and some nodosaurids and ankylosaurids) have a cancellous core. Cortical thickness overlaps among groups, so a thick cortex is not diagnostic for polacanthids. Modified elements diverge histologically from the primitive condition for specific functions. Haversian bone in the core is not indicative of any group. Some shapes and superficial textures are diagnostic for specific taxa. Parsimony analyses show support for the Ankylosauridae and Nodosauridae, but not a monophyletic polacanthid clade.<br>Systematics and Evolution

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Senne, Isabell Barbara [Verfasser]. "Effekte der Ganzkörperkältekammer bei Patienten mit Spondylitis ankylosans / vorgelegt von Isabell Barbara Senne." 2001. http://d-nb.info/965423905/34.

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Schneider, Anne. "Wirbelsäulenfrakturen bei Spondylitis Ankylosans: eine retrospektive Kohortenstudie an 55 Patienten über Besonderheiten bei Diagnostik und Therapie und Erfassung der Lebensqualität nach operativer Stabilisierung der Wirbelsäule." 2019. https://ul.qucosa.de/id/qucosa%3A35601.

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Eine retrospektive Analyse der zwischen 2004 und 20014 am Universitätsklinikum Leipzig an der Wirberbelsäule stabilisierten Patienten mit Spondylitis Ankylosans sowie die Erfassung deren postoperativer Lebensqualität.

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Books on the topic "Ankylosaur"

1

ill, Mangiat Jeff, ed. Ankylosaurus. Weekly Reader Books, 2009.

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Riehecky, Janet. Ankylosaurus. Child's World, 1991.

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ill, Calvetti Leonello, and Massini Luca ill, eds. Ankylosaurus. Blackbirch Press, 2007.

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Raatma, Lucia. Ankylosaurus. Cherry Lake Pub., 2013.

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Pryor, Kimberley Jane. Ankylosaurus. Marshall Cavendish Benchmark, 2012.

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ill, Magniat Jeffrey, ed. Ankylosaurus. Weekly Reader Books, 2009.

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Bailey, Gerry. Ankylosaurus. Crabtree Pub., 2011.

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Carr, Aaron. Ankylosaurus. AV² by Weigl, 2015.

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Bailey, Gerry. Ankylosaurus. Crabtree Pub., 2011.

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Gray, Susan Heinrichs. Ankylosaurus. Child's World, 2009.

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Book chapters on the topic "Ankylosaur"

1

Braun, Jürgen, and Joachim Sieper. "Spondylitis ankylosans." In Molekularmedizinische Grundlagen von rheumatischen Erkrankungen. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-55803-0_12.

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Ghyselen, H. "Revalidatie bij spondylitis ankylosans." In Fysiotherapeutische casuïstiek. Bohn Stafleu van Loghum, 2006. http://dx.doi.org/10.1007/978-90-313-8645-1_168.

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Michiels, I., and R. Apel. "Wirbelsäulenfrakturen bei der Spondylitis ankylosans (M. Bechterew)." In 52. Jahrestagung der Deutschen Gesellschaft für Unfallheilkunde e.V. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-75043-4_160.

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Brackertz, D. "HLA-B27-assoziierte Arthritiden (Spondylitis ankylosans, Morbus Reiter und Psoriasisarthritis)." In Klinische Rheumatologie. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-82519-4_8.

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Keßler-Leonhardt, F. W., and U. Droste. "Komplikationen und Schweregrad der Stammskelett-Osteoporose bei Spondylitis Ankylosans (M. Bechterew)." In Aktuelle Aspekte der Osteologie. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-76766-1_90.

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Carpenter, Kenneth. "Ankylosaur systematics: example using Panoplosaurus and Edmontonia (Ankylosauria: Nodosauridae)." In Dinosaur Systematics. Cambridge University Press, 1990. http://dx.doi.org/10.1017/cbo9780511608377.024.

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Vickaryous, Matthew K., Teresa Maryanska, and David B. Weishampel. "Ankylosauria." In The Dinosauria. University of California Press, 2004. http://dx.doi.org/10.1525/california/9780520242098.003.0020.

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"30.6 Spondylitis ankylosans Spondylitis ankylosans [M45]." In Checkliste Innere Medizin, edited by Johannes-Martin Hahn. Georg Thieme Verlag, 2013. http://dx.doi.org/10.1055/b-0035-106248.

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Krüger, Karsten, and Frank C. Mooren. "Spondylitis ankylosans." In Therapie und Prävention Durch Sport, Band 3. Elsevier, 2016. http://dx.doi.org/10.1016/b978-3-437-24275-5.00005-1.

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"17. Ankylosauria." In The Dinosauria, Second Edition. University of California Press, 2019. http://dx.doi.org/10.1525/9780520941434-023.

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Conference papers on the topic "Ankylosaur"

1

West, Bryanna, and Arthur Busbey. "CAMPANIAN-MAASTRICHTIAN ANKYLOSAURS OF WEST TEXAS." In 54th Annual GSA South-Central Section Meeting 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020sc-343443.

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von der Höh, NH, P. Pieroh, Alexander G. Brand, et al. "Zweihöhenverletzungen bei Patienten mit Spondylitis ankylosans: Ergebnisse nach dorsaler Stabilisierung." In Deutscher Kongress für Orthopädie und Unfallchirurgie. Georg Thieme Verlag KG, 2020. http://dx.doi.org/10.1055/s-0040-1717798.

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Burns, Michael E., and Jun A. Ebersole. "NEW APPALACHIAN ARMORED DINOSAUR MATERIAL (NODOSAURIDAE, ANKYLOSAURIA) FROM THE MAASTRICHTIAN RIPLEY FORMATION OF ALABAMA." In 65th Annual Southeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016se-273236.

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