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Jianu, Coralia Maria; Weishampel, David B.

doi:10.1023/a:1003855416962

Cited by 46 publications

(6 citation statements)

References 18 publications

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“…To the contrary, the dominance of small elements in the Tuştea bone assemblage indicates that relatively small bones (<10 cm) accumulated and were buried from the start in greater numbers than larger ones, probably because the skeletons of the taxa represented in the Tuștea sample contained greater amounts of small (less than 10 cm) bones than larger (> 10 cm) ones -at least in part also as a consequence of their life-time small, often dwarfed body sizes (e.g., Csiki and Grigorescu, 1998;Weishampel et al, 1993Weishampel et al, , 2003Jianu and Weishampel, 1999;Benton et al, 2010;Stein et al, 2010).…”

Section: Accepted Manuscript 35 432 Bone Representamentioning

confidence: 99%

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: Accepted Manuscript 35 432 Bone Representamentioning

confidence: 99%

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 humerus is 1.69 m in length, ϳ14% longer than the next longest known humerus from a Cretaceous sauropod (20). The South American titanosaurid Argentinosaurus is regarded as the most massive terrestrial animal known and may have approached 90 metric tons (21) and 30 m in length (22). The humerus of Argentinosaurus is unknown, but we estimate its length at 1.81 m (7.5% longer than that of Paralititan), using more complete titanosauriforms (23).…”

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confidence: 99%

A Giant Sauropod Dinosaur from an Upper Cretaceous Mangrove Deposit in Egypt

Smith

Lamanna

Lacovara

et al. 2001

Science

138

104

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We describe a giant titanosaurid sauropod dinosaur discovered in coastal deposits in the Upper Cretaceous Bahariya Formation of Egypt, a unit that has produced three Tyrannosaurus-sized theropods and numerous other vertebrate taxa. Paralititan stromeri is the first tetrapod reported from Bahariya since 1935. Its 1.69-meter-long humerus is longer than that of any known Cretaceous sauropod. The autochthonous scavenged skeleton was preserved in mangrove deposits, raising the possibility that titanosaurids and their predators habitually entered such environments.

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“…The peculiar modifications undergone by Cenozoic insular taxa have been observed not only in Mesozoic dinosaurs, e.g., in the dwarf sauropods Europasaurus holgeri (Kimmeridgian, Germany [ 68 ]) and Magyarosaurus dacus (Maastrichtian, Romania and Hungary [ 69 ]), but also in the small primitive monotreme Litovoi tholocephalos from the latest Cretaceous of Romania. The latter species shows a reduction in brain size and heightened sensory acuity compared to its continental relatives.…”

Section: Discussionmentioning

confidence: 99%

First Attempt to Infer Sound Hearing and Its Paleoenvironmental Implications in the Extinct Insular Canid Cynotherium sardous Studiati, 1857 (Sardinia, Italy)

Zedda

Brunetti

Palombo

2022

Animals

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This is the first study on the bony labyrinth of Cynotherium sardous, an intriguing extinct canid that inhabited Sardinia in the late Middle and Late Pleistocene. The morphological features of the cochlea indicate that C. sardous had a lower number of cochlear turns (2.25) than all extant canids. This feature, as well as the reduced length of the spiral canal, the cochlear curvature rate, and the narrow basal membrane, indicates that C. sardous had poor hearing abilities limited to high-frequency sounds with a low limit of 250 Hz and poor echolocalization skills. From the data available, it is not possible to infer whether C. sardous was unable to echolocalize its prey and relied on other senses (e.g., smell and sight) to locate them or whether the acoustic range of C. sardous was specialized for identifying the sounds produced by its most common prey to transmit signals for predator warnings or group communication. All things considered, the results obtained confirm the utility of cochlea morphological studies in reconstructing the hearing abilities of this species and in providing some suggestions about its ethology, but they fall short of providing any new sound evidence regarding the ecological role of C. sardous in the Late Pleistocene Sardinian ecosystem.

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Cited by 46 publications

References 18 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

A Giant Sauropod Dinosaur from an Upper Cretaceous Mangrove Deposit in Egypt

First Attempt to Infer Sound Hearing and Its Paleoenvironmental Implications in the Extinct Insular Canid Cynotherium sardous Studiati, 1857 (Sardinia, Italy)

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