Exceptional soft-tissue preservation in a theropod dinosaur from Italy

  title={Exceptional soft-tissue preservation in a theropod dinosaur from Italy},
  author={Cristiano Dal Sasso and Marco Signore},
The Lower Cretaceous Pietraroia Plattenkalk (Benevento Province, southern Italy) has been known since the eighteenth century for its beautifully preserved fossil fishes. During Albian time (about 113 Myr ago), deposition of fine marly limestone in a shallow lagoonal environment, affected by cyclic periods of low oxygen levels, led to exceptional preservation of soft tissue in a juvenile theropod. The specimen, diagnosed here as Scipionyx samniticus gen. et sp. nov., is the first dinosaur ever… 

Exceptional soft tissues preservation in a mummified frog-eating Eocene salamander

Internal structures composed of soft tissues preserved in three dimensions are now identified: a lung, the spinal cord, a lumbosacral plexus, the digestive tract, muscles and urogenital organs that may be cloacal glands and shed light on the ecology of this salamander.

On the purported presence of fossilized collagen fibres in an ichthyosaur and a theropod dinosaur

It is found that there is no evidence to support the idea that the integumentary structures seen in the two taxa are collagen fibres, and it is confirmed that the most parsimonious interpretation of fossilized structures that look like feather homologues in Sinosauropteryx is that they are indeed the remains of featherhomologues.

Anatomy of Sinosauropteryx prima from Liaoning, northeastern China

A spectacular pair of Sinosauropteryx skeletons from Jurassic–Cretaceous strata of Liaoning in northeastern China attracted worldwide notoriety in 1996 as the first dinosaurs covered with

Skeletal remains of a small theropod dinosaur with associated soft structures from the Lower Cretaceous Santana Formation of northeastern Brazil

Associated well-preserved, uncrushed skeletal remains, comprising the pelvic girdle, partial sacrum, both femora, and parts of the right tibia and fibula, from the Romualdo Member of the Lower

Remarkable Preservation of Undigested Muscle Tissue Within a Late Cretaceous Tyrannosaurid Coprolite from Alberta, Canada

Abstract Exceptionally detailed soft tissues have been identified within the fossilized feces of a large Cretaceous tyrannosaurid. Microscopic cord-like structures in the coprolitic ground mass are

Appendicular myology of the hadrosaurian dinosaur Maiasaura peeblesorum from the Late Cretaceous (Campanian) of Montana

  • D. Dilkes
  • Environmental Science
    Transactions of the Royal Society of Edinburgh: Earth Sciences
  • 1999
Abstract Musculature of the pectoral and pelvic appendages and girdles of adult and nestling Maiasaura peeblesorum (Dinosauria: Ornithischia: Hadrosauridae) from the Late Cretaceous of Montana is


This study proposes that C. corallestris is a subjective junior synonym of Compsognathus longipes from Bavaria, which is nearly identical to those of the French specimen, and the differences are related to ontogenetic or within-species variation or are caused by preservational factors.

Dinosaurs of Italy

  • C. Sasso
  • Geography, Environmental Science
  • 2005
Abstract In recent years, the idea that Italy was lacking dinosaurs has been denied by a striking series of finds. Several Triassic and Jurassic dinosaur tracksites were discovered in the mid-eastern



A nearly complete skeleton of a new troodontid dinosaur from the Early Cretaceous of the Ordos Basin, Inner Mongolia, People's Republic of China

An articulated skeleton of a 1 m long theropod from Early Cretaceous strata in Inner Mongolia is clearly referrable to the Troodontidae, representing the most complete specimen known of this group of

A new carnosaur (Dinosauria, Theropoda) from the Jurassic of Xinjiang, People's Republic of China

In 1987, a Sino-Canadian expedition known as the Dinosaur Project (China – Canada – Alberta – Ex Terra) discovered a large theropod skeleton in the Upper Jurassic Shishugou Formation of the Junggar

Dinosaur Systematics: Theropod teeth from the Judith River Formation of southern Alberta, Canada

The identification of theropod teeth has the potential of refining stratigraphic determinations, extending temporal and geographic ranges, indicating relationships, and allowing paleoecological statements to be made on the relative diversity or abundance of certain taxa.

A Theropod Dinosaur Embryo and the Affinities of the Flaming Cliffs Dinosaur Eggs

An embryonic skeleton of a nonavian theropod dinosaur was found preserved in an egg from Upper Cretaceous rocks in the Gobi Desert of Mongolia. Cranial features identify the embryo as a member of

New information on the anatomy and relationships of Dromaeosaurus albertensis (Dinosauria: Theropoda)

Repreparation and restudy of the holotype of Dromaeosaurus albertensis has produced new anatomical information useful for evaluating the relationships of dromaeosaurids.

The phylogenetic position of the Tyrannosauridae: implications for theropod systematics

  • T. Holtz
  • Environmental Science, Geography
    Journal of Paleontology
  • 1994
The inclusion of the Tyrannosauridae within Maniraptora suggests a major adaptive radiation of coelurosaurs within Cretaceous Asiamerica comparable to contemporaneous radiations in various herbivorous dinosaurian clades.

Functional Morphology in Vertebrate Paleontology

This paper presents a meta-analysis of the evolution of the hindlimb and tail from basal theropods to birds and the consequences of skull flattening in crocodilians and an analysis of the posture and gait of ceratopsian dinosaurs.

The occurrence of clavicles within Dinosauria: Implications for the homology of the avian furcula and the utility of negative evidence

The test of congruence using the currently accepted phylogenetic relationships within the Ornithodira suggests that the loss of clavicles may be plesiomorphic within Dinosauria, raising the possibility that the furcula of birds may be a neomorph, or may represent the reappearance of a “lost” structure.

A Velociraptor wishbone

The discovery of a furcula is reported in Dromaeosauridae, a group posited to be the closest relative of birds, and the uncertainty of whether this absence is real or an artefact of preservation obscures the evolutionary history of this structure.

Phylogenetic taxonomy of the Coelurosauria (Dinosauria: Theropoda)

  • T. Holtz
  • Biology
    Journal of Paleontology
  • 1996
This paper is the initial work in an ongoing study by Holtz and Padian (1995, in preparation) to clarify the phylogenetic taxonomy of major clades of theropods and related taxa.