Multiple injury and infection in a sub-adult theropod dinosaur<i>Allosaurus fragilis</i>with comparisons to allosaur pathology in the Cleveland-Lloyd Dinosaur Quarry Collection

Hanna, Rebecca R.

doi:10.1671/0272-4634(2002)022[0076:miaiia]2.0.co;2

Cited by 80 publications

(118 citation statements)

References 15 publications

Supporting

Mentioning

108

Contrasting

Unclassified

Order By: Relevance

“…Nevertheless, tooth loss in Sinosaurus clearly was non-fatal and ZLJT01 survived probably for months or even years ( Figure 3). This finding adds to the known range of dental pathologies found in theropods and contributes to mounting evidence suggesting theropods were highly resilient to a broad spectrum of traumas and diseases [26,49,50]. …”

Section: Discussionsupporting

confidence: 57%

Tooth loss and alveolar remodeling in Sinosaurus triassicus (Dinosauria: Theropoda) from the lower jurassic strata of the Lufeng Basin, China

Xing

Bell²,

Rothschild

et al. 2013

Chin. Sci. Bull.

View full text Add to dashboard Cite

Pathological or traumatic loss of teeth often results in the resorption and remodeling of the affected alveoli in mammals. However, instances of alveolar remodeling in reptiles are rare. A remodeled alveolus in the maxilla of the Chinese theropod Sinosaurus (Lower Jurassic Lower Lufeng Formation) is the first confirmed example of such dental pathology in a dinosaur. Given the known relationship between feeding behavior and tooth damage in theropods (teeth with spalled enamel, tooth crowns embedded in bone) and the absence of dentary, maxillary, and premaxillary osteomyelitis, traumatic loss of a tooth is most likely the cause of alveolar remodeling. Based on the extent of remodeling, the injury and subsequent tooth loss were non-fatal in this individual.

show abstract

Section: Discussionsupporting

confidence: 57%

Tooth loss and alveolar remodeling in Sinosaurus triassicus (Dinosauria: Theropoda) from the lower jurassic strata of the Lufeng Basin, China

Xing

Bell²,

Rothschild

et al. 2013

Chin. Sci. Bull.

View full text Add to dashboard Cite

show abstract

“…Tanke and Currie (1998) documented several examples of cranial and facial injuries that had been inflicted by the teeth of conspecifics in Sinraptor dongi, Gorgosaurus libratus, Daspletosaurus torosus, Tarbosaurus bataar and M. jiangi. Such aggressive interactions had been previously postulated by Molnar (1991) and Historical Biology 149 Abler (1992), while a variety of systemic injuries were detailed in A. fragilis, some of which were possibly the result of conflict with conspecifics (Hanna 2002). There are numerous accounts of injuries in theropods [see Molnar (2001) for a detailed review] and it is suggested that the most likely causes of at least some of these pathologies were conflicts over food resources and territory (Tanke and Currie 1998;Molnar 2001), though socio-sexual reasons cannot be completely ruled out.…”

Section: Evidence For Visual Display Organs and Associated Behavioursmentioning

confidence: 67%

The socio-sexual behaviour of extant archosaurs: implications for understanding dinosaur behaviour

Isles¹

2009

Historical Biology

View full text Add to dashboard Cite

“…Where osteopathy affecting large theropods in this critical area is observed, it is typically in the form of simple osteophytes of possible infectious (non-traumatic) origins. Osteomyelitis with extra (sometimes exuberant) overriding bone growth has also been observed (Hanna, 2002;Farke and O'Connor, 2007) as well as stress-related abnormalities to pedal phalanges (Bell, 2010). This extra bone should not be confused with a fracture callus, which can superficially appear similar, especially if there are associated infectious complications.…”

Section: Discussionmentioning

confidence: 99%

Vertebrate Ichnopathology: Pathologies Inferred from Dinosaur Tracks and Trackways from the Mesozoic

McCrea

Tanke

Buckley

et al. 2015

Ichnos

View full text Add to dashboard Cite

Literature concerning dinosaur footprints or trackways exhibiting abnormal gait or morphology reflecting pathology (ichnopathology) is rare. We report on a number of Jurassic and Cretaceous occurrences of theropod footprints from western North America with unusual morphologies interpreted herein as examples of inferred pathologies, or ichnopathologies. The majority of ichnopathologies are primarily manifested in the digit impressions and include examples of swelling, extreme curvature, dislocation or fracture, and amputation. A number of occurrences are single tracks on ex situ blocks with substantial deformation (inferred dislocation or fracture), or absence of a single digit impression. Two occurrences are from in situ natural mould trackways, one of which is a lengthy trackway of a presumed allosauroid with no noticeable deformation of the digits or feet but with strong inward rotation of the left footprint toward the midline and a pronounced, waddling limp. The other is a tyrannosaurid trackway consisting of three footprints (one right, two left) with the two left prints exhibiting repetitive ichnopathology of a partially missing Digit II impression.Keywords Dinosaur tracks, Amputation, Antalgic gait, Compensated gait, Jurassic, Cretaceous, Ichnopathology, Laterality, Irregular gait, Limping gait, Shuffling gait, Waddling gait INTRODUCTIONOver the course of the past few decades, there has been a marked increase in the literature of pathology of dinosaurs (e.g., Tanke and Rothschild, 2002 and references therein). However, the literature on inferred pathology from dinosaur tracks and trackways (ichnopathology) has not seen a corresponding increase. Reports on ichnopathology in dinosaurs have been infrequent, with perhaps less than one paper published per decade since the beginning of modern studies of dinosaur traces in the early 19th century. It is possible that reports of ichnopathology have not kept pace with reports of pathologies on osteological specimens due to the various influences of track-bearing substrate, the behavior of the trackmaker, as well as a range of taphonomic factors that make such interpretations difficult. The sparse publication record of ichnopathology may also be a reflection of the cautious approach ichnologists employ when interpreting phenomena related to tracks.Even with a restrained approach toward footprint and trackway interpretation, some dinosaur tracks and trackways exhibit morphologies that have defied explanation by conventional behaviors of the trackmaker, or by the physical and dynamic qualities of the track surface, both pre-and post-burial.This article discusses previous reports of dinosaur ichnopathology with reinterpretations where such is warranted. Several recent and new reports of dinosaur ichnopathologies are described, from sites in the Jurassic of China and the Cretaceous of North America. A number of criteria are proposed that will aid in the interpretation of ichnopathologies

show abstract

Multiple injury and infection in a sub-adult theropod dinosaurAllosaurus fragiliswith comparisons to allosaur pathology in the Cleveland-Lloyd Dinosaur Quarry Collection

Cited by 80 publications

References 15 publications

Tooth loss and alveolar remodeling in Sinosaurus triassicus (Dinosauria: Theropoda) from the lower jurassic strata of the Lufeng Basin, China

Tooth loss and alveolar remodeling in Sinosaurus triassicus (Dinosauria: Theropoda) from the lower jurassic strata of the Lufeng Basin, China

The socio-sexual behaviour of extant archosaurs: implications for understanding dinosaur behaviour

Vertebrate Ichnopathology: Pathologies Inferred from Dinosaur Tracks and Trackways from the Mesozoic

Contact Info

Product

Resources

About