Shrinking the World's Largest Dinosaur Tracks: Observations on the Ichnotaxonomy of<i>Gigantosauropus asturiensis</i>and<i>Hispanosauropus hauboldi</i>from the Upper Jurassic of Asturias, Spain

Lockley, Martin G.; Lires, José; García-Ramos, José Carlos; Piñuela, Laura; Avanzini, Marco

doi:10.1080/10420940601050048

Cited by 31 publications

(26 citation statements)

References 6 publications

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“…The north and west-bound theropod trackways of Baladeh are morphologically comparable to Schizograllator otariensis (Matsukawa et al 2005;Lockley et al 2007), in digit shape, divarication angle and footprint length is greater than width. Schizograllator otariensis have been reported from Jurassic sediments in Japan, also (Matsukawa et al 2005).…”

Section: Discussionmentioning

confidence: 84%

“…2D). Two distinctive didactyl footprints belong to Velociraptorichnus sichuanensis and have been reported from Poland (Gierliński 2007) and East Asia (Lockley et al 2007).…”

Section: Discussionmentioning

confidence: 99%

“…Sauropodomorpha includes the first huge terrestrial herbivores at and before the Triassic-Early Jurassic boundary, while sauropods gain dominance in the Early Jurassic. These dinosaurs are quadrupedal and produced the largest dinosaur footprints known (Lockley et al 2007). The sauropod manus and pes morphology is variable in either digit pads or size and position of claws (Allain et al 2004;Milàn et al 2005 (Haubold 1986).…”

Section: Discussionmentioning

confidence: 99%

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Dinosaur tracks from the Jurassic Shemshak Group in the Central Alborz Mountains (Northern Iran)

Abbassi¹,

Madanipour²

2014

Geologica Carpathica

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Abstract:The Shemshak Group includes alternating layers of coal-bearing shale and siliciclastic sediments in the Baladeh area in the central Alborz Mountains of northern Iran. A diverse and abundant Jurassic dinosaur footprint assemblage is now recognized in the group, which is Toarcian to Bajocian in age in the northern Baladeh. This is the first report of a diverse dinosaur ichnoassemblage from Iran that includes the footprints of sauropods. These tracks can be assigned to three groups of trackmakers: theropods, ornithopods and sauropods. Those of theropods are typically tridactyl in shape, their trackways reflecting bipedal movement. Theropod footprints are very abundant in both northern and western Baladeh. The studied theropod tracks themselves are divided into three major dimensional groups. The medium sized footprints (footprint length, 11-15 cm) are abundant and have a stride length, digit and pace angles like the coelurosaurs footprints and trackway. Theropod footprints were identified as similar to Schizograllator otariensis, Talmontopus tersi and Wildeichnus isp. Ornithopod footprints are tridactyl with rounded and thick toes and belong to bipeds. Some didactyl imprints were also observed. Skin imprints were well preserved in these footprints. The ornithopod tracks resemble Jiayinosorupus johnsoni, as well as Velociraptorichnus sichuanensis for didactyl footprints. Sauropod footprints found in the western part of Baladeh are assigned here to Eosauropus isp., which are pentadactyl pes imprints of a quadruped. The assemblage from Iran resembles similar associations from eastern Asia.Key words: Jurassic, Iran, Alborz Mountains, ichnology, Dinosaur. Materials and methodsThe geometry of the studied footprints was examind using the methods of Thulborn 1990. These dimensions are footprint length (FL), footprint width (FW), pace angulations (PA), stride (S), trackway width (TW) and digit length (DL). The shape of footprints and trackway patterns were mapped on the transparent papers. Some footprints were sampled; including six footprints of horizons 2-4 of the Royan section and two footprints of the uppermost layer of horizon 2 of the Bol-Yasel section. Four plaster casts prepared in the field from the well-preserved footprints of the Royan section include footprint numbers of f [11][12] in horizon 4 and 5a 1 from the horizon 5. These samples were deposited in the Geological Museum of the Department of Geology of the University of Zanjan, with code numbers GMZU09-40-49.

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Section: Discussionmentioning

confidence: 84%

“…2D). Two distinctive didactyl footprints belong to Velociraptorichnus sichuanensis and have been reported from Poland (Gierliński 2007) and East Asia (Lockley et al 2007).…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Dinosaur tracks from the Jurassic Shemshak Group in the Central Alborz Mountains (Northern Iran)

Abbassi¹,

Madanipour²

2014

Geologica Carpathica

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“…Remarkably, this group reached the largest dimensions ever seen in terrestrial animals: footprints which are larger than 1 m in length are exclusively referred to Sauropoda (Thulborn et al, 1994;Lockley et al, 2007). On the other hand smaller or dwarf forms (Sander et al, 2006) could have left footprints similar in gross shape and dimensions to the BiC tracks.…”

Section: Discussionmentioning

confidence: 99%

A new purported ankylosaur trackway in the Lower Cretaceous (lower Aptian) shallow-marine carbonate deposits of Puglia, southern Italy

Petti¹,

Porchetti²,

Sacchi³

et al. 2010

Cretaceous Research

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a b s t r a c tThe Apulian marine carbonate Platform, an unusual environment for terrestrial animals, has revealed a diverse ichnological record, especially for dinosaurs. Members of most higher taxa are present, including sauropods, theropods, ankylosaurs and ornithopods. Recently, a small outcrop of Aptian age referred to the Calcare di Bari near Bisceglie (Bari) has yielded a new quadrupedal trackway that we attribute to Ankylosauria. This new find enhances the record of Cretaceous ankylosaur footprints from the Apulian carbonate Platform, previously known from another site near Bisceglie (early Aptian), from Borgo Celano (late Hauterivianeearly Barremian), and from Altamura (late Coniacianeearly Santonian).

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“…1A), especially along the coastal areas, where their exposure is, in many cases, excellent. Because of this, the stratigraphy and sedimentology of these rocks have been intensely studied (e.g., Suárez Vega, 1974;Valenzuela et al, 1986;Valenzuela, 1988;García Ramos and Gutiérrez Claverol, 1995; and many others), and they have also been studied from other points of views, such as: hydrogeology, hydrocarbons, jet jewelry, dinosaur paleontology, geological engineering, and geological heritage (see, for instance, Soler et al, 1981;Menéndez Casares et al, 2004;Lockley et al, 2007; and many others). The main structural features of the Asturian Basin have been described in regional studies, some involving geological mapping (e.g., Beroiz et al, 1972aBeroiz et al, , 1972bBeroiz et al, , 1972cPignatelli et al, 1972), whereas others have focused on establishing the structural framework of portions of the basin (e.g., Lepvrier and Martínez García, 1990;Uzkeda, 2013;Alonso, 2014;Odriozola, 2016;Uzkeda et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Effects of inherited structures on inversion tectonics: Examples from the Asturian Basin (NW Iberian Peninsula) interpreted in a Computer Assisted Virtual Environment (CAVE)

et al. 2018

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Two outcrops in the Asturian Basin (northwest Iberian Peninsula) composed of Lower-Middle Jurassic alternations of limestones and marls, including black shales proven to be hydrocarbon source rocks, were analyzed from a structural point of view. In both outcrops, an inversion tectonic event of Cenozoic age caused contractional folds and faults, as well as a change in the structural style up section, superimposed on previous Mesozoic extensional structures. However, the mode and kinematic evolution of the inversion tectonics were very different; folding predominated in one of the outcrops, whereas faulting is the most important phenomenon in the other one. The characteristics of the two coastal outcrops (irregular surface, inaccessible portions, accessibility restricted to low tide periods, good quality of rock exposure and scale) led us to build virtual outcrop models using photogrammetry (structure from motion) and interpret them in a computer-assisted virtual environment (CAVE). The analysis of both field data and the virtual outcrop model-derived results (three-dimensional models and cross sections) allowed us to conclude that mechanical stratigraphy and the type, characteristics, and distribution of previous structures were the key factors that controlled the inversion tectonic mode. Awareness of their influence should help when trying to understand inversion structures in similar geological settings.

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Shrinking the World's Largest Dinosaur Tracks: Observations on the Ichnotaxonomy ofGigantosauropus asturiensisandHispanosauropus hauboldifrom the Upper Jurassic of Asturias, Spain

Cited by 31 publications

References 6 publications

Dinosaur tracks from the Jurassic Shemshak Group in the Central Alborz Mountains (Northern Iran)

Dinosaur tracks from the Jurassic Shemshak Group in the Central Alborz Mountains (Northern Iran)

A new purported ankylosaur trackway in the Lower Cretaceous (lower Aptian) shallow-marine carbonate deposits of Puglia, southern Italy

Effects of inherited structures on inversion tectonics: Examples from the Asturian Basin (NW Iberian Peninsula) interpreted in a Computer Assisted Virtual Environment (CAVE)

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