The fossil trackway<i>Pteraichnus</i>is pterosaurian, not crocodilian: Implications for the global distribution of pterosaur tracks

Lockley, Martin G.; Logue, Terrence J.; Moratalla, José J.; Hunt, Adrian P.; Schultz, Rebecca J.; Robinson, John W.

doi:10.1080/10420949509380110

Cited by 122 publications

(84 citation statements)

References 15 publications

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“…sions of the entire sole of the foot (Lockley et al, 1995;Bennett, 1997). These data illustrate the potential pitfalls of any philosophical/functional approach based upon strict adherence to a particular phylogenetic interpretation that limits the use of available evidence in paleontological reconstructions.…”

Section: Problems With a Cursorial Dinosaurian Origin Of Flightmentioning

confidence: 99%

Gravity-defying Behaviors: Identifying Models for Protoaves

Geist

Feduccia

2000

Am Zool

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SYNOPSIS.Most current phylogenetic hypotheses based upon cladistic methodology assert that birds are the direct descendants of derived maniraptoran theropod dinosaurs, and that the origin of avian flight necessarily developed within a terrestrial context (i.e., from the ''ground up''). Most theoretical aerodynamic and energetic models or chronologically appropriate fossil data do not support these hypotheses for the evolution of powered flight. The more traditional model for the origin of flight derives birds from among small arboreal early Mesozoic archosaurs (''thecodonts''). According to this model, protoavian ancestors developed flight in the trees via a series of intermediate stages, such as leaping, parachuting, gliding, and flapping. This model benefits from the assemblage of living and extinct arboreal vertebrates that engage in analogous non-powered aerial activities using elevation as a source of gravitational energy. Recent reports of ''feathered theropods'' notwithstanding, the evolution of birds from any known group of maniraptoran theropods remains equivocal.

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Section: Problems With a Cursorial Dinosaurian Origin Of Flightmentioning

confidence: 99%

Gravity-defying Behaviors: Identifying Models for Protoaves

Geist

Feduccia

2000

Am Zool

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“…Basic biological functions, such as locomotion, can cause lengthy debate among paleontologists. The debate on the validity of pterosaur manus tracks seems to have reached a consensus that such tracks do exist (e.g., Lockley et al, 1995;Mazin et al, 2003), and the specimen described in this report supports that consensus.…”

Section: Discussionmentioning

confidence: 53%

“…This track morphologically compares favorably with other tracks attributed to pterosaurs elsewhere in Jurassic-Cretaceous deposits, particularly those illustrated from the Crayssac site (lower Tithonian, southwestern France; Mazin et al, 2003, fig. 3a), the El Pellillal tracksite in the Cerro del Pueblo Formation (latest Campanian, Coahuila, Mexico; Rodriguez-De La Rosa, 2003), and the North Horn Formation (Late Cretaceous, Utah; Lockley, 1999), as well as those from Jurassic rocks in Wyoming and Utah (Lockley et al, 1995). Other large tracks have been described from Gansu Province, China (Zhang et al, 2006), but the illustrations preclude reliable measurements.…”

Section: Fossil Materialsmentioning

confidence: 99%

A pterosaur manus track from Denali National Park, Alaska Range, Alaska, United States

Fiorillo

Hasiotis

Kobayashi

et al. 2009

PALAIOS

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We report on the first record of a pterosaur from Alaska. This record consists of a single manus track from the lower part of the Upper Cretaceous Cantwell Formation in Denali National Park, Alaska, United States, making this the northernmost occurrence for this group of reptiles. The specimen is from deposits that record a low-lying floodplain with small lakes and ponds, dissected by small channels that fed a larger tributary stream on an active fan lobe. The dominant vegetation was comprised of conifers with an understory of ferns and horsetails.

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“…Desde los primeros estudios en la década de los 70, el número de yacimientos en la misma ha ido en aumento continuamente. La mayor parte de ellos se localizan dentro del Grupo Enciso, aunque última-mente los hallazgos en el Grupo Oncala se han multiplicado, proporcionando numerosas icnitas de reptiles (dinosaurios, pterosaurios y cocodrilos) y de aves [Aguirrezabala et al, 1980[Aguirrezabala et al, , 1983Moratalla, 1993;Lockley et al, 1995;Sanz et al, 1997;Fuentes Vidarte y Meijide Calvo, 1998; Pascual y Sanz, en revisión].…”

Section: Introductionunclassified

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Arribas¹,

Pérez²

2000

Estud. geol.

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RESUMENDentro del estudio icnológico que se realiza en los alrededores de San Pedro Manrique (Soria, España) el nuevo yacimiento de Valdelavilla, enclavado en la unidad IV-b de la Aloformación Huérteles, ha proporcionado, hasta el momento, huellas de dinosaurios y de pterosaurios. La principal característica del mismo estriba en contener una gran variedad de icnitas de dinosaurios, tanto por su tipo (terópodos, omitópodos, saurópo-dos), como por su tamaño (desde 70 cm hasta 8 cm) y forma de caminar (digitígrados, plantígrados). Como en muchos otros lugares del Grupo Oncala, abundan las huellas de terópodos y en menor proporción las de saurópodos, no presentándose claramente las de omitópodos. ABSTRACTWithin the ichnological study of the surroundings of San Pedro Manrique (Soria, Spain), the new site at Valdelavilla, located in unit IV-b of the Huérteles Formation, has yielded dinosaur and pterosaur tracks. The main feature of this site is that it contains a great variety of dinosaur tracks, as regards their type (theropods, omithopods, sauropods) their size (from 70 cm to 6 cm), and the way these tracemakers walked (digitigrade, plantigrade). Like many other place at Oncala Group, theropod tracks are abundant, and at a lesser degree, sauropod tracks are also presento There is no conclusive evidence of omithopods tracks.

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The fossil trackwayPteraichnusis pterosaurian, not crocodilian: Implications for the global distribution of pterosaur tracks

Cited by 122 publications

References 15 publications

Gravity-defying Behaviors: Identifying Models for Protoaves

Gravity-defying Behaviors: Identifying Models for Protoaves

A pterosaur manus track from Denali National Park, Alaska Range, Alaska, United States

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