fossile

Nature du spécimen

267 image(s) · 171 Actualités

Galerie d'images

Locality map for Australian eurypodan thyreophoran fossils.

1, Stegosaurian? footprint (QM F5701), Walloon Coal Measures, Balgowan Colliery, Balgowan (Bajocian–Bathonian); 2, Minmi paravertebra holotype (QM F10329) (Molnar, 1980), Minmi Member, Bungil Formation (Valanginian–Barremian); 3, Thyreophoran trackways, Broome Sandstone, Dampier Peninsula, Western Australia (Valanginian–Barremian); 4, Ankylosauria indet. (see Barrett et al., 2010) ‘Flat Rocks’ Wonthaggi Formation (upper Hauterivian–Albian); 5, NMV P216739, ‘Lake Copco–Dinosaur Cove’ Eumeralla Formation (middle upper Aptian to lower middle Albian) (Barrett et al., 2010); 6, QM F33286; 7, AM F119849 and AM F35259; 8, Kunbarrasaurus ieversi gen. et sp. nov. (formerly Minmi sp.) (QM F18101); 9, QM F33565 and QM F33566; 10, QM F44324-28. Legend: Dark Green, Toolebuc Formation (late middle–early late Albian); Green, Allaru Formation (upper Albian–(?)lower Cenomanian); Light green, Mackunda Formation (upper Albian–lower Cenomanian); Lightest green, Winton Formation (late Albian–early Turonian).
Formations Toolebuc

Locality map for Australian eurypodan thyreophoran fossils. 1, Stegosaurian? footprint (QM F5701), Walloon Coal Measures, Balgowan Colliery, Balgowan (Bajocian–Bathonian); 2, Minmi paravertebra holotype (QM F10329) (Molnar, 1980), Minmi Member, Bungil Formation (Valanginian–Barremian); 3, Thyreophoran trackways, Broome Sandstone, Dampier Peninsula, Western Australia (Valanginian–Barremian); 4, Ankylosauria indet. (see Barrett et al., 2010) ‘Flat Rocks’ Wonthaggi Formation (upper Hauterivian–Albian); 5, NMV P216739, ‘Lake Copco–Dinosaur Cove’ Eumeralla Formation (middle upper Aptian to lower middle Albian) (Barrett et al., 2010); 6, QM F33286; 7, AM F119849 and AM F35259; 8, Kunbarrasaurus ieversi gen. et sp. nov. (formerly Minmi sp.) (QM F18101); 9, QM F33565 and QM F33566; 10, QM F44324-28. Legend: Dark Green, Toolebuc Formation (late middle–early late Albian); Green, Allaru Formation (upper Albian–(?)lower Cenomanian); Light green, Mackunda Formation (upper Albian–lower Cenomanian); Lightest green, Winton Formation (late Albian–early Turonian).

Australie Broome Sandstone Eumeralla Toolebuc +18
Original figure caption: .mw-parser-output .smallcaps{font-variant:small-caps}The Middletown Slab covered with the Footprints of Carnivorous Dinosaurs. The tracks are in high relief. Additional notes: Most if not all of these tridactylous (i.e. three-toed) footprints/tracks (but not the actual trackmaker!) are referred to as Grallator or as Grallator-type trace fossils. “High relief” means that these are actually casts of footprints forming a positive relief on the lower surface of the sandstone slab (so-called positive hyporelief). The material that originally formed the mud over which the dinosaurs walked was too friable to be recovered from the quarry in one piece. The slab consists of so called ‘brownstone’ which is the trading name of the sandstone quarried at Middletown, Connecticut. This sandstone belongs to the Lower Jurassic Portland Formation of the Hartford Basin (“Connecticut Valley”) and thus to the upper part of the Newark Supergroup. The trackmakers probably were relatively small ‘primitive’ theropod dinosaurs (coelophysoids) such as Podokesaurus the remains of which were recovered from Lower Jurassic deposits of the Hartford Basin.
Formations Portland

Original figure caption: .mw-parser-output .smallcaps{font-variant:small-caps}The Middletown Slab covered with the Footprints of Carnivorous Dinosaurs. The tracks are in high relief. Additional notes: Most if not all of these tridactylous (i.e. three-toed) footprints/tracks (but not the actual trackmaker!) are referred to as Grallator or as Grallator-type trace fossils. “High relief” means that these are actually casts of footprints forming a positive relief on the lower surface of the sandstone slab (so-called positive hyporelief). The material that originally formed the mud over which the dinosaurs walked was too friable to be recovered from the quarry in one piece. The slab consists of so called ‘brownstone’ which is the trading name of the sandstone quarried at Middletown, Connecticut. This sandstone belongs to the Lower Jurassic Portland Formation of the Hartford Basin (“Connecticut Valley”) and thus to the upper part of the Newark Supergroup. The trackmakers probably were relatively small ‘primitive’ theropod dinosaurs (coelophysoids) such as Podokesaurus the remains of which were recovered from Lower Jurassic deposits of the Hartford Basin.

Portland Jurassique moulage fossile +4
Locality map: Grand Staircase-Escalante National Monument, southern Utah.
Map showing the Nipple Butte area (indicated by yellow star) of Grand Staircase-Escalante National Monument (GSENM). GSENM is bounded by the red rectangle and silhouetted in dark gray on the inset of Utah and surrounding states (modified from [1]).

The original map has been modified to show the Nipple Butte area instead of the Machairoceratops fossil locality as in the original source. New location based on map in A New Macrovertebrate Assemblage from the Late Cretaceous (Campanian) of Southern Utah, page 601.

Locality map: Grand Staircase-Escalante National Monument, southern Utah. Map showing the Nipple Butte area (indicated by yellow star) of Grand Staircase-Escalante National Monument (GSENM). GSENM is bounded by the red rectangle and silhouetted in dark gray on the inset of Utah and surrounding states (modified from [1]). The original map has been modified to show the Nipple Butte area instead of the Machairoceratops fossil locality as in the original source. New location based on map in A New Macrovertebrate Assemblage from the Late Cretaceous (Campanian) of Southern Utah, page 601.

Campanien Crétacé Crétacé supérieur fossile +1
(A) Map of Queensland showing the extent of Cretaceous outcrop. (B) Map of the location of Dig Site Three (type locality of Haliskia), and numerous other sites in the area from which pterosaur fossils have been collected.
Formations Griman Creek

(A) Map of Queensland showing the extent of Cretaceous outcrop. (B) Map of the location of Dig Site Three (type locality of Haliskia), and numerous other sites in the area from which pterosaur fossils have been collected.

Crétacé fossile Haliskia Pterosauria
Eubrontes dinosaur track from the Jurassic of Connecticut, USA.
Trace fossils are any indirect evidence of ancient life.  They refer to features in rocks that do not represent parts of the body of a once-living organism.  Traces include footprints, tracks, trails, burrows, borings, and bitemarks.  Body fossils provide information about the morphology of ancient organisms, while trace fossils provide information about the behavior of ancient life forms.  Interpreting trace fossils and determination of the identity of a trace maker can be straightforward (for example, a dinosaur footprint represents walking behavior) or not.  Sediments that have trace fossils are said to be bioturbated.  Burrowed textures in sedimentary rocks are referred to as bioturbation.  Trace fossils have scientific names assigned to them, in the same style & manner as living organisms or body fossils.
This track was made by a theropod, a group of small to large, carnivorous, bipedal dinosaurs.  The specimen comes from a Triassic to Jurassic terrestrial sedimentary succession that filled up a half graben, many of which occur along America's eastern seaboard.  Such half-graben basins formed during the Triassic as the Pangaea supercontinent tried to rift apart, but failed.  Pangaea successfully broke apart during the Jurassic.
Stratigraphy: East Berlin Formation, Newark Supergroup, Lower Jurassic
Locality: unrecorded / undisclosed site at or near the town of Rocky Hill, central Connecticut, USA


Info. at:
mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=CTJeb%3B0
and

en.wikipedia.org/wiki/Eubrontes

Eubrontes dinosaur track from the Jurassic of Connecticut, USA. Trace fossils are any indirect evidence of ancient life. They refer to features in rocks that do not represent parts of the body of a once-living organism. Traces include footprints, tracks, trails, burrows, borings, and bitemarks. Body fossils provide information about the morphology of ancient organisms, while trace fossils provide information about the behavior of ancient life forms. Interpreting trace fossils and determination of the identity of a trace maker can be straightforward (for example, a dinosaur footprint represents walking behavior) or not. Sediments that have trace fossils are said to be bioturbated. Burrowed textures in sedimentary rocks are referred to as bioturbation. Trace fossils have scientific names assigned to them, in the same style & manner as living organisms or body fossils. This track was made by a theropod, a group of small to large, carnivorous, bipedal dinosaurs. The specimen comes from a Triassic to Jurassic terrestrial sedimentary succession that filled up a half graben, many of which occur along America's eastern seaboard. Such half-graben basins formed during the Triassic as the Pangaea supercontinent tried to rift apart, but failed. Pangaea successfully broke apart during the Jurassic. Stratigraphy: East Berlin Formation, Newark Supergroup, Lower Jurassic Locality: unrecorded / undisclosed site at or near the town of Rocky Hill, central Connecticut, USA Info. at: mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=CTJeb%3B0 and en.wikipedia.org/wiki/Eubrontes

États-Unis Jurassique Trias fossile +5
A trackway of the trace fossil Bifurculapes laqueatus (positive hyporelief, i.e. casts on the bottom surface of the bed) from the Early Jurassic East Berlin Formation (Hartford Basin) of Holyoke, Massachusetts (not the same specimen as this one). Scale is in cm.
Formations East Berlin

A trackway of the trace fossil Bifurculapes laqueatus (positive hyporelief, i.e. casts on the bottom surface of the bed) from the Early Jurassic East Berlin Formation (Hartford Basin) of Holyoke, Massachusetts (not the same specimen as this one). Scale is in cm.

écaille East Berlin Jurassique inférieur Jurassique +4
Fossil eggs of the oospecies Macroelongatoolithus carlylei (believed to be the eggs of giant oviraptorosaurs) from the Cedar Mountain Formation of North America. At the SECU Dinolab of the North Carolina Museum of Natural Sciences

Fossil eggs of the oospecies Macroelongatoolithus carlylei (believed to be the eggs of giant oviraptorosaurs) from the Cedar Mountain Formation of North America. At the SECU Dinolab of the North Carolina Museum of Natural Sciences

musée Cedar Mountain fossile Macroelongatoolithus +2
Paleogeography and paleoclimate of the Late Jurassic - 150 Ma with dinosaur fossil localities:
A = Tendaguru Formation, Tanzania
C1 =  Shishugou & Kalazha Formations, China
C2 =  Shangshaximiao (Upper Shaximiao) Formation, China
E1 =  Sables de Glos, Argiles d’Octeville, Marnes de Bléville, Kimmeridge Clay, Calcareous Grit, Corallian Oolite, Oxford Clay, Portland Stone, England & France
E2 = Villar del Arzobispo, Alcobaça, Guimarota, Sobral, Amoreira-Porto Novo, Bombarral, Freixial, Lourinhã Formations, Spain & Portugal
M1-6 = Morrison Formation, United States
S1 =  Toquí & Cañadón Calcáreo Formations, Chile & Argentina

Paleogeography and paleoclimate of the Late Jurassic - 150 Ma with dinosaur fossil localities: A = Tendaguru Formation, Tanzania C1 = Shishugou & Kalazha Formations, China C2 = Shangshaximiao (Upper Shaximiao) Formation, China E1 = Sables de Glos, Argiles d’Octeville, Marnes de Bléville, Kimmeridge Clay, Calcareous Grit, Corallian Oolite, Oxford Clay, Portland Stone, England & France E2 = Villar del Arzobispo, Alcobaça, Guimarota, Sobral, Amoreira-Porto Novo, Bombarral, Freixial, Lourinhã Formations, Spain & Portugal M1-6 = Morrison Formation, United States S1 = Toquí & Cañadón Calcáreo Formations, Chile & Argentina

Argentine Chili Chine France +19
A broken concretion with fossils inside; Late Cretaceous Pierre shale, near Ekalaka, Montana.

A broken concretion with fossils inside; Late Cretaceous Pierre shale, near Ekalaka, Montana.

Pierre Shale Crétacé Crétacé supérieur fossile
The distictive banding of the Morrison Formation, a group of rock layers that occur throughout Dinosaur National Monument.  The formation originated as muds and sands laid down by ancient rivers, and some of its outcrops have been found to contain 150-million-year-old dinosaur fossils like those found at the monument's Dinosaur Quarry.

The distictive banding of the Morrison Formation, a group of rock layers that occur throughout Dinosaur National Monument. The formation originated as muds and sands laid down by ancient rivers, and some of its outcrops have been found to contain 150-million-year-old dinosaur fossils like those found at the monument's Dinosaur Quarry.

Morrison fossile Dinosauria formation
Bituminous claystone, Lower Jurassic, Hesselberg, Middle Franconia.
Sedimentary rock of very thin laminated layers (particles less than 0,0002 mm).

Rock formation is known for its rich fossil findings, ex. Ichthyosaur.

Bituminous claystone, Lower Jurassic, Hesselberg, Middle Franconia. Sedimentary rock of very thin laminated layers (particles less than 0,0002 mm). Rock formation is known for its rich fossil findings, ex. Ichthyosaur.

Jurassique fossile Ichthyosauria formation
Map of Cretaceous-aged dinosaur fossil localities of Mongolia.
Gobihadros mongoliensis was collected from Bayshin Tsav in Area C. Open squares indicate Late Cretaceous sites, solid squares represent Early Cretaceous localities. Abbreviations: A, Localities of Western Gobi Desert in Mongolia, mainly group of localities of Nemegtian age (early Maastrichtian), Late Cretaceous; B, Localities of Central Gobi Desert in Mongolia, mainly Djadokhtian age (Campanian), Late Cretaceous; C & D- Localities of Eastern Gobi Desert in Mongolia, mainly Baynshirenian age (Cenomanian-Santonian), Late Cretaceous. Figure has been modified from Tsogtbaatar et al. 2014, Figure 1 [24].
Formations Baynshire

Map of Cretaceous-aged dinosaur fossil localities of Mongolia. Gobihadros mongoliensis was collected from Bayshin Tsav in Area C. Open squares indicate Late Cretaceous sites, solid squares represent Early Cretaceous localities. Abbreviations: A, Localities of Western Gobi Desert in Mongolia, mainly group of localities of Nemegtian age (early Maastrichtian), Late Cretaceous; B, Localities of Central Gobi Desert in Mongolia, mainly Djadokhtian age (Campanian), Late Cretaceous; C & D- Localities of Eastern Gobi Desert in Mongolia, mainly Baynshirenian age (Cenomanian-Santonian), Late Cretaceous. Figure has been modified from Tsogtbaatar et al. 2014, Figure 1 [24].

Mongolie Campanien Cénomanien Crétacé +8
Fossil hunting at Dinosaur Park
Formations Arundel Clay

Fossil hunting at Dinosaur Park

chasse Dinosaur Park fossile Dinosauria
Figure 2: Fossil vertebrate locality of Eric the Red West.
Shore platform looking west, showing undulating erosive boundary (solid white line) between the top of the Anchor Sandstone (AS) and the base of the ETRW Sandstone (ES). White dashed lines indicate selected bedding surfaces. White scale in mid-ground (indicated by arrow) equals 1 m.
Formations Eumeralla

Figure 2: Fossil vertebrate locality of Eric the Red West. Shore platform looking west, showing undulating erosive boundary (solid white line) between the top of the Anchor Sandstone (AS) and the base of the ETRW Sandstone (ES). White dashed lines indicate selected bedding surfaces. White scale in mid-ground (indicated by arrow) equals 1 m.

écaille fossile
Fossil of Suevoleviathan- Took the picture at Museum am Lowentor, Stuttgart

Fossil of Suevoleviathan- Took the picture at Museum am Lowentor, Stuttgart

musée fossile Suevoleviathan
Fossil of Suevoleviathan- Took the picture at Museum am Lowentor, Stuttgart

Fossil of Suevoleviathan- Took the picture at Museum am Lowentor, Stuttgart

musée fossile Suevoleviathan
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Actualités

Un nouvel ichtyosaure du Jurassique supérieur des gisements allemands de Plattenkalk
Allemagne Jurassique Jurassique supérieur Tithonien fossile Aegirosaurus Ichthyosauria Jabalisaurus nouvelle espèce
Les scientifiques ont décrit une nouvelle espèce d’ichtyosaure jurassique du sud de l’Allemagne. La nouvelle espèce nommée Jabalisaurus tethyensis vivait il y a environ 149 millions d’années au Jurassique supérieur (stade faunique Tithonien). Remarquablement, certains fossiles attribués à Jabalisaurus tethyensis avaient déjà été classés comme Aegirosaurus. La recherche met en évidence la diversité cachée des ichtyosaures dans la célèbre
17/08/2026 everythingdinosaur ⚙ Traduction automatique
De minuscules fossiles vieux de 1,7 milliard d’années pourraient révéler l’origine complexe de la vie
fossile
Les scientifiques recherchent dans certaines des roches les plus anciennes de la Terre de minuscules fossiles qui pourraient révéler comment une vie microbienne simple a fait un bond extraordinaire vers les plantes, les animaux et d’autres organismes complexes. Résoudre cet ancien mystère pourrait également aider à déterminer si une vie complexe pourrait émerger sur des mondes au-delà de la Terre.
17/08/2026 sciencedaily-paleo ⚙ Traduction automatique
Une nouvelle espèce de la période glaciaire se cachait dans les fossiles des fosses de la Brea depuis des décennies
os Pléistocène fossile découverte nouvelle espèce
Les scientifiques ont découvert une nouvelle espèce d’amphibien éteinte cachée dans les collections de fossiles de La Brea Tar Pits à Los Angeles. Nommé Spea labreae, le crapaud de la période glaciaire est une découverte exceptionnellement rare : un seul autre amphibien éteint du Pléistocène a jamais été identifié en Amérique du Nord. Ses ossements étaient conservés dans des collections depuis les années 1950 avant qu'un chercheur ne remarque des caractéristiques qui le distinguaient des espèces connues.
16/08/2026 sciencedaily-paleo ⚙ Traduction automatique
Un fossile vieux de 30 ans cachait les os d'un mystérieux monstre marin ancien
os mâchoire Crétacé fossile Mosasaurus nouvelle espèce crâne
Des fossiles collectés à Osaka il y a plus de 30 ans ont révélé une surprise cachée à la vue de tous : quatre os jusqu'alors méconnus provenant d'un mosasaure géant du Crétacé. Parmi eux se trouve le premier prémaxillaire confirmé – l’os le plus en avant de la mâchoire supérieure – jamais identifié dans un fossile de mosasaure japonais. Plus intrigant encore, certaines parties du crâne présentent des caractéristiques anatomiques inhabituelles qui ne correspondent pas aux mosasaures connus, ce qui laisse penser que les restes appartiennent à une espèce entièrement nouvelle.
15/08/2026 sciencedaily ⚙ Traduction automatique
La paléontologie est ébranlée par des molécules organiques découvertes dans des os de dinosaures vieux de 66 millions d'années
os collagène protéine fossile Dinosauria découverte évolution
Les chercheurs ont trouvé des preuves solides que le collagène original peut survivre à l’intérieur des fossiles de dinosaures pendant des dizaines de millions d’années, renversant ainsi une hypothèse de longue date concernant la fossilisation. Cette découverte pourrait révéler des indices moléculaires cachés sur la biologie des dinosaures, leur évolution et la façon dont d’anciennes protéines ont réussi à survivre aussi longtemps.
14/08/2026 sciencedaily ⚙ Traduction automatique
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