Paleobiology of Titanosaurs: Reproduction, Development, Histology, Pneumaticity, Locomotion and Neuroanatomy from the South American Fossil Record

García, Rodolfo A.; Salgado, Leonardo; Fernández, Mariela Soledad; Cerda, Ignacio Alejandro; Paulina‐Carabajal, Ariana; Otero, Alejandro; Coria, Rodolfo A.; Fiorelli, Lucas E.

doi:10.5710/amgh.16.07.2014.829

Cited by 50 publications

(63 citation statements)

References 141 publications

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“…Megaloolithid eggs are customarily considered to have been laid by titanosaurian sauropods (e.g., Mikhailov, 1997;Horner, 2000;Chiappe et al, 2005;García et al, 2015), a hypothesis that is supported by perinatal titanosaurian remains discovered associated with different megaloolithid ootaxa in Argentina (Chiappe et al, 1998(Chiappe et al, , 2001(Chiappe et al, , 2003(Chiappe et al, , 2005 and India (Wilson et al, 2010). Accordingly, the Tuștea eggs were also referred to titanosaurian sauropods by Grigorescu et al (1990), as well.…”

Section: Eggs and Eggshellsmentioning

confidence: 81%

“…However, there is a long-standing and quasi-general consensus that eggs of the Megaloolithus oogenus were laid by titanosaurian sauropods (e.g., Buffetaut and Le Loeuff, 1994;Sahni and Khosla, 1994;Mohabey, 1996;Chiappe et al, 1998Chiappe et al, , 2003Chiappe et al, , 2005GrelletTinner et al, 2006;Salgado et al, 2007;Vila et al, 2010a, b;Wilson et al, 2010;García et al, 2015), and the Tuştea locality stood as the single, outstanding occurrence of this oogenus…”

Section: The Puzzle Of the Tuștea Dinosaur Eggs -Insights From Deposimentioning

confidence: 99%

“…Selecting similar palaeoenvironments for nesting would be also expected as it appears that both titanosaurs and hadrosauroids had roughly similar nesting strategies, characterized by: colonial nesting; moderate-sized (10-22 cm in maximum diameter, but usually ranging between 12-16 cm) subspherical eggs laid in clutches that are only very diffusely organised, sometimes with two partly overlapping levels of eggs; and clutches covered most probably by dirt and/or vegetation mounds (e.g., Horner, 2000;Grellet-Tinner et al, 2006). Furthermore, both of these taxa (or eggs referred to them) appear to have had rather wide environmental flexibility in nesting site selection (e.g., Horner, 1982Horner, , 1999López-Martínez et al, 2000;Fanti and Miyashita, 2009;Sellés, 2012;García et al, 2015). All of these characteristics were already noted in the case of the megaloolithid eggs from the Hațeg Basin .…”

Section: Testing the Hypothesismentioning

confidence: 99%

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Taphonomical and palaeoecological investigation of the Late Cretaceous (Maastrichtian) Tuştea vertebrate assemblage (Romania; Haţeg Basin) - insights into a unique dinosaur nesting locality

Botfalvai

Csiki-Sava

Grigorescu

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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The Tuştea vertebrate locality, at Oltoane Hill (northwestern part of the Hațeg Basin, Romania), has provided a rich and diverse assemblage of Late Cretaceous (Maastrichtian) continental vertebrates. More than 800 vertebrate fossils were recovered from this locality; the isolated and associated remains represent 21 different taxa including amphibians, turtles, lizards, snakes, crocodyliforms, pterosaurs, dinosaurs and mammals. The local assemblage is overwhelmingly dominated by dinosaurs, with the rhabdodontid Zalmoxes as the most abundant taxon. The bonebeds that yielded this fossil material occur in a stacked series of mudstone/calcrete units belonging to the middle member of the Densuş-Ciula Formation. The taphonomical investigations suggest that the Tuştea assemblage is made up of attritionally accumulated politaxic remains and that it is a parautochthonous assemblage with no evidence for significant bone transport or reworking.According to the synthesis of all available field data two outstanding fossiliferous levels can be identified within the Tuştea locality, where Megaloolithus eggs and hadrosauroid hatchling material are preserved together, recognized here as two superposed nesting grounds. Such co-occurrence was considered controversial, since there is a longstanding and quasi-general consensus that eggs of the Megaloolithus oogenus were laid by titanosaurian sauropods. We present several alternative scenarios to account for the cooccurrence of Telmatosaurus hatchling remains and megaloolithid eggs in the nesting horizons and explore these alternative hypotheses by weighing the arguments supporting or contradicting them. The burden of evidence derived from our sedimentological, taphonomical and palaeoecological investigations at Tuştea is still in favor of the autochthony of the hatchlings, preserved within their own nesting grounds, whereas there is no such support for a titanosaurian origin of the Tuștea megaloolithid eggs.

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Section: Eggs and Eggshellsmentioning

confidence: 81%

Section: The Puzzle Of the Tuștea Dinosaur Eggs -Insights From Deposimentioning

confidence: 99%

Section: Testing the Hypothesismentioning

confidence: 99%

See 1 more Smart Citation

Taphonomical and palaeoecological investigation of the Late Cretaceous (Maastrichtian) Tuştea vertebrate assemblage (Romania; Haţeg Basin) - insights into a unique dinosaur nesting locality

Botfalvai

Csiki-Sava

Grigorescu

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…Baryonyx (BMNH R9951) e Irritator (SMNS 58022) y los saurópodos titanosaurios García et al, 2015) la distancia entre los tubérculos basales y los procesos basipterigoideos es nula (Figs. 5.1, 11.1).…”

Section: ) En Los Terópodos Espinosáuridosunclassified

“…Algunos de estos trabajos sobre tortugas pleistocénicas fueron complementados en su momento por un estudio de síntesis sobre reptiles cuaternarios (de la Fuente, 1999 (Gaffney et al, 1987;Sterli y Joyce, 2007) y con Indochelys spatulata del Jurásico Inferior de la India (Datta et al, 2000). Dicha tortuga, consistente en varios ejemplares preservados por restos craneanos y postcraneanos, fue nominada como Condorchelys antiqua (Sterli, 2008) y fue objeto de la tesis doctoral de Juliana Sterli (Sterli, 2009) (Sterli y de la Fuente, 2010;Cerda et al, 2015).…”

unclassified

Reptiles Extintos - Volumen en Homenaje a Zulma Gasparini

2015

PE-APA

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Three‐Dimensional Musculoskeletal Modeling of the Sauropodomorph Hind Limb: The Effect of Postural Change on Muscle Leverage

Klinkhamer

Mallison

Poropat

et al. 2018

The Anatomical Record

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The biomechanical constraints for life at massive size can be directly observed in the evolutionary history of sauropodomorph dinosaurs. Members of this lineage underwent a number of major postural transitions as they increased in size from relatively small bipedal dinosaurs to massive titanosaurs that include the largest terrestrial animals of all time. To better understand the impact of gigantic size on the biomechanics of sauropods, we used three‐dimensional musculoskeletal modeling to investigate how hind limb musculature was affected, first by the development of a quadrupedal stance from a bipedal one, and later in the transition from a narrow‐gauge to a wide‐gauge stance. Muscle moment arms were measured in four sauropodomorph taxa: the bipedal basal sauropodomorph Plateosaurus engelhardti, the narrow‐gauge diplodocid Diplodocus carnegii, the titanosauriform Giraffatitan brancai, and the wide‐gauge titanosaur Diamantinasaurus matildae. In Plateosaurus, low moment arm leverage in the hip extensors and knee flexors and extensors was observed suggesting high‐velocity movement for fast locomotion. A reduction in hip extensor leverage in Diamantinasaurus was found which suggests a reduced role for the hind limb in forward propulsion in titanosaurs. An increase in overall hip adductor leverage and leverage of adductors 1 and 2 in Diamantinasaurus, compared with other taxa studied, might relate to the development of a wide‐gauge stance. High knee flexor–extensor leverage in Giraffatitan but not Diamantinasaurus partially refutes the idea that broader femoral condyles in titanosauriforms increased knee torque production capabilities. Sauropodomorph postural changes clearly had an impact on the function and leverage of hind limb muscles. Anat Rec, 301:2145–2163, 2018. © 2018 Wiley Periodicals, Inc.

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Paleobiology of Titanosaurs: Reproduction, Development, Histology, Pneumaticity, Locomotion and Neuroanatomy from the South American Fossil Record

Cited by 50 publications

References 141 publications

Taphonomical and palaeoecological investigation of the Late Cretaceous (Maastrichtian) Tuştea vertebrate assemblage (Romania; Haţeg Basin) - insights into a unique dinosaur nesting locality

Taphonomical and palaeoecological investigation of the Late Cretaceous (Maastrichtian) Tuştea vertebrate assemblage (Romania; Haţeg Basin) - insights into a unique dinosaur nesting locality

Reptiles Extintos - Volumen en Homenaje a Zulma Gasparini

Three‐Dimensional Musculoskeletal Modeling of the Sauropodomorph Hind Limb: The Effect of Postural Change on Muscle Leverage

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