Anatomy of Juravenator starki (Theropoda: Coelurosauria) from the Late Jurassic of Germany

Chiappe, Luis M.; Göhlich, Ursula B.

doi:10.1127/0077-7749/2010/0125

Cited by 54 publications

(78 citation statements)

References 37 publications

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“…Indeed, most specimens are in excellent state of preservation and some of them also have soft tissues, feathers and/or gut contents preserved (Ostrom 1978, Norman 1990, Chen et al 1998, dal Sasso and Signore 1998, Naish et al 2004, Göhlich and Chiappe 2006, Ji et al 2007, Chiappe and Göhlich 2010. If this hypothesis is correct two implications are plausible (see below).…”

Section: Discussionmentioning

confidence: 99%

“…1a). Juravenator starki Göhlich and Chiappe 2006 is also from Germany, but it was found in the Schamhaupten plattenkalk, which is at least five million years older than Solnhofen Chiappe 2006, Chiappe andGöhlich 2010). In this way the two species were not coeval.…”

Section: Compsognathids Through Space and Timementioning

confidence: 98%

“…The yixian Formation, along with other formations of the Jehol Group, has contributed with many excellently preserved fossils to the discussions about the origin and/or radiation of important taxa, like angiosperms and mammals (Lucas 2001, zhou et al 2003, zhou 2006, Liu et al 2012. The Pietroroia Plattenkalk and Schamhaupten Plattenkalk also have well-preserved fossil specimens and can be considered among the main Fossil Lagerstätten (dal Sasso and Signore 1998, dal Sasso 2003, Chiappe and Göhlich 2010.…”

Section: Discussionmentioning

confidence: 99%

“…According to xu (2006) and Chiappe and Göhlich (2010), complete skeletons of small theropods of this period are rare. Notably, Juravenator starki and Compsognathus longipes, the only two Jurassic compsognathid species, were respectively found in Schamhaupten and Solnhofen.…”

Section: Discussionmentioning

confidence: 99%

“…Testing the monophyly of this taxon will require further phylogenetic studies, including especially more basal coelurosaurs (Chiappe and Göhlich 2010). In order to define the range of taxa that is considered here to be a compsognathid, the diagnostic features proposed by Peyer (2006) are adopted: (i) fan-shaped mid to posterior dorsal neural spines; (ii) metacarpal I very stout, approximately as broad as long; (iii) proximal width of phalanx I-1 more than minimal shaft diameter of radius; (iv) lack of an external mandibular fenestra; (v) lack of pleurocoels in dorsal vertebrae; (vi) short, wide and only slightly inclined dorsal transverse processes; (vii) hook-shaped ligament attachments on dorsal neural spines.…”

Section: Compsognathids Through Space and Timementioning

confidence: 99%

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Note on the paleobiogeography of Compsognathidae (Dinosauria: Theropoda) and its paleoecological implications

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Cascon

Schultz

2014

An. Acad. Bras. Ciênc.

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The paleobiogeography of the theropod clade Compsognathidae is here reaccessed in order to test the hypothesis of this taxon being adapted specifically to inhabit semi-arid environments. Data about localities where these fossils were collected and their paleoenvironments were gathered from the literature. Compsognathids seem to be found especially in sedimentary deposits known as Fossil Lagerstätten, which were formed under a set of specific conditions that allowed the preservation of the fragile bone remains of these animals. This bias limits an accurate analysis of the historical and/or ecological paleobiogeography of this taxon. Actually, it is possible that compsognathids had an almost worldwide distribution during the Mesozoic Era. Their occurrence in Lower Cretaceous rocks of China suggests that they also inhabited environments with moist conditions instead of being restricted to semi-arid to arid environments.

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Section: Discussionmentioning

confidence: 99%

Section: Compsognathids Through Space and Timementioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Compsognathids Through Space and Timementioning

confidence: 99%

See 3 more Smart Citations

Note on the paleobiogeography of Compsognathidae (Dinosauria: Theropoda) and its paleoecological implications

Sales

Cascon

Schultz

2014

An. Acad. Bras. Ciênc.

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Dinosaurs and The Origin of Birds

Clark

2013

Encyclopedia of Life Sciences

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The evolutionary relationships of birds have been debated ever since the discovery of a fossil bird, Archaeopteryx , in 1861, that has bird‐like feathers but reptilian teeth and a long bony tail. Recent discoveries of feathered dinosaurs have confirmed analyses of bird relationships beginning in the 1970s that placed Archaeopteryx and birds within one group of dinosaurs, the Theropoda. Recognition of this relationship and discovery of a variety of new species have allowed evolutionary biologists to study for the first time many aspects of the transition from ground‐living theropods to flying birds. Many new details about the evolution of feathers, reproductive features of birds and flight have emerged from these fossils and continue to emerge as new fossils are found. The precise relationships of birds to theropods is still debated, but the scansoriopterygids, dromaeosaurs and troodontids are amongst the closest relatives of birds. Key Concepts: The closest living relatives of birds are the crocodilians and together they form the group Archosauria. The origins of birds lie with fossil archosaurs, which include dinosaurs, the flying reptiles called pterosaurs and the many fossil relatives of crocodilians. Evolutionary relationships are studied using cladistic analysis of similarities shared amongst different species. Cladistic analyses strongly support birds being closely related to a subgroup within the theropod dinosaurs called Coelurosauria and especially with the scansoriopterygid, dromaeosaur and troodontid coelurosaurs. Fossil coelurosaurs with feathers from China provide convincing evidence that birds are coelurosaurs, and that during the course of evolution feathers arose before flight.

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Morphological Diversity and Evolution of the Jugal in Dinosaurs

Sullivan

2016

The Anatomical Record

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In dinosaurs, as in other reptiles, the homologue of the mammalian zygomatic bone is the jugal. The dinosaurian jugal was primitively triradiate, with posterior, dorsal and anterior processes that respectively contacted the quadratojugal, the postorbital, and the maxilla and lacrimal. However, the jugal evolved along different lines in the three major dinosaurian clades. In theropods this cranial element remained relatively conservative in morphology, apart from being reduced to a rod-like structure in most birds and a few non-avians. In sauropodomorphs the jugal eventually became small, plate-like and nearly restricted to the area below the orbit, even being excluded from the ventral margin of the skull in many derived taxa. Among ornithischians the jugal was highly variable, but in many cases became large and/or adorned with ornamental features such as horns, flanges, and rugosities. The jugal does not appear to have been a site of muscle attachment in most non-avian dinosaurs, but represented an important structural element in the akinetic dinosaurian skull. The conspicuous jugal ornaments seen in many ornithischian dinosaurs, like the less striking ones documented in some saurischians, may have played an important role in the social behavior of the species that possessed them. In many cases they have a weapon-like aspect suggesting use in aggressive displays, if not actual combat, adding to the evidence that agonistic behavior was likely widespread among ornithischians in particular. Anat Rec,

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Anatomy of Juravenator starki (Theropoda: Coelurosauria) from the Late Jurassic of Germany

Cited by 54 publications

References 37 publications

Note on the paleobiogeography of Compsognathidae (Dinosauria: Theropoda) and its paleoecological implications

Note on the paleobiogeography of Compsognathidae (Dinosauria: Theropoda) and its paleoecological implications

Dinosaurs and The Origin of Birds

Morphological Diversity and Evolution of the Jugal in Dinosaurs

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