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Petrified wood specimen Petrifaction describes the fossilisation of wood It occurs when pieces of wood fall into sediments and are rapidly covered
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Plateosaurus dinosaur illustration This herbivorous dinosaur lived about 210 million years ago in the Late Triassic It had five-fingered hands and
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Fossilised tooth of a Phytosaurus from the Rhaetian age (Late Triassic) dating 205 million years ago in what is now Nancy France This tooth measur
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Rock containing fossils of two Pleurocera sp ammonites belemnite rostrum and bivalves The nodule dates from the Upper Pliensbachian age of the Low
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Rock containing fossils of two Pleurocera sp ammonites belemnite rostrum and bivalves The nodule dates from the Upper Pliensbachian age of the Low
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Phytosaurus tooth
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Rock containing fossils of two Pleurocera sp ammonites belemnite rostrum and bivalves The nodule dates from the Upper Pliensbachian age of the Low
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Peteinosaurus flying reptiles in a forest illustration
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Dinosaur footprint Dinosaur footprint made by a theropod The theropod (meaning beast-footed) dinosaurs were nearly all two-legged carnivores the
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Peteinosaurus flying reptiles in a cliff illustration
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Leptosuchus phytosaur illustration
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Fossil Knebelia lobster
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Coelophysis dinosaur computer illustration Coelophysis bauri was one of the earliest true dinosaurs appearing in what is now North America in the l
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Artwork of the head of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period
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Artwork of the extinct Lystrosaurus (shovel lizard) This animal is not a dinosaur but lived much earlier during the Late Permian and Early Triass
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Artwork of the head of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period
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Artwork of the head of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period
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Artwork of extinct animal Lystrosaurus
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Artwork of a dinosaur Tyrannosaurus hunting in a forest Dinosaurs were reptiles that dominated life on land for 140 million years throughout the Me
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Artwork of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period some 97 mi
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Artwork of the head of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period
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Artwork of the head of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period
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Artwork of the head of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period
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Artwork of extinct animal Lystrosaurus
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Artwork of the extinct Lystrosaurus (shovel lizard) This animal is not a dinosaur but lived much earlier during the Late Permian and Early Triass
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Artwork of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period some 97 mi
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Artwork depicting Lystrosaurus seen against the backdrop of the Permian extinction or Great Dying This was the most devastating extinction in Earth
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Artwork of the head of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period
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Fossilised logs in the Petrified Forest National Park Arizona USA Tall pine-like trees covered parts of the flood plain that occupied this area in
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Artwork of the extinct Lystrosaurus (shovel lizard) This animal is not a dinosaur but lived much earlier during the Late Permian and Early Triass
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Artwork of the head of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period
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Artwork of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period some 97 mi
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Artwork of the theropod dinosaur Giganotosaurus carolinii This apex predator lived in what is now Argentina in the Late Cretaceous period some 97 mi
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Procompsognathus dinosaur illustration Procompsognathus dinosaur It was about the size of a large chicken and lived during the late Triassic period
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Thecodontosaurus illustration Photo by DK IMAGESSCIENCE PHOTO LIBRARY
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Pterosaur flying reptiles illustration Pterosaurs were carnivorous predators feeding on fish and other small animals They flew with wings formed f
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Pterosaur flying reptiles illustration Pterosaurs were carnivorous predators feeding on fish and other small animals They flew with wings formed f
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Pterosaur flying reptiles illustration Pterosaurs were carnivorous predators feeding on fish and other small animals They flew with wings formed f
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Petrified trees Fossilised remains of trees in the Petrified Forest National Park Arizona USA Tall pine-like trees covered parts of the flood pla
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Theropod dinosaur footprint found at Glen Rose Texas USA dating from the Late Jurassic Theropods were bipedal dinosaurs that were initially carniv
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Petrified rocks in Petrified Forest National Park Arizona
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Petrified rocks in Petrified Forest National Park Arizona
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Petrified rocks in Petrified Forest National Park Arizona
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Petrified rocks in Petrified Forest National Park Arizona
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Petrified log in Petrified Forest National Park Arizona
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The Newspaper Rock in Petrified Forest National Park Arizona
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The Newspaper Rock in Petrified Forest National Park Arizona
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The Newspaper Rock in Petrified Forest National Park Arizona
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Petrified trees Fossilised remains of trees in the Petrified Forest National Park Arizona USA Tall pine-like trees covered parts of the flood pla
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Illustration of a Plateosaurus This dinosaur lived 210 million years ago during the Late Triassic period in what is now Europe and North America Pla
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Helicoprion prehistoric shark illustration This shark lived during the late Carboniferous period (280 million years ago) until the early Triassic pe
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Coelophysis dinosaurs illustration Ceolohpysis dinosaurs were small carnivores that lived during the Late Triassic period in America and Africa Ce
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Herd of Camposaurus dinosaurs (left) illustration Camposaurus dinosaurs were small carnivores that lived during the Late Triassic period in North Am
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Hypuronector reptile illustration This extinct reptile lived during the Late Triassic (237-201 million years ago) in what is now New Jersey USA I
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Coelophysis dinosaur computer artwork Coelophysis bauri was one of the earliest true dinosaurs appearing in what is now North America in the late T
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Pterosaur forelimb comparison artwork
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Pterosaur forelimb comparison Artwork showing the dorsal forelimb bone structure (top to bottom) of a crocodylian a pterosaur (Anhanguera sp) and a
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Pterosaur anatomy (image 5 of 5) Artwork showing the skeleton (white) of a flying pterosaur This extinct group of flying reptiles also known as pte
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Banded sedimentary cliff View of a cliff of sedimentary rocks showing very distinct strata The upper layers of the rocks were deposited about 10 mi
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Pterosaur anatomy (image 4 of 5) Artwork showing the air sacs (light brown) and skeleton (white) of a flying pterosaur This extinct group of flying
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Pterosaur anatomy (image 3 of 5) Artwork showing the muscles (dark brown) air sacs (light brown) and skeleton (white) of a flying pterosaur This ex
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Pterosaur anatomy (image 2 of 5) Artwork showing the muscle (dark brown) and air sac anatomy (light brown) of a flying pterosaur This extinct group
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Pterosaur anatomy (image 1 of 5) Artwork showing the surface anatomy of a flying pterosaur This extinct group of flying reptiles also known as pter
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Saltopus Computer artwork of a Saltopus dinosaur by a stream Saltopus was a primitive theropod dinosaur that lived during the Late Triassic period (
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Coelophysis dinosaur skeleton artwork Coelophysis was one of the earliest true dinosaurs appearing in what is now North America in the late Triassi
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Artwork of a dinosaur Tyrannosaurus silhouetted against the Moon Dinosaurs were reptiles that dominated life on land for 140 million years througho
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Fossil fish (Dapedium punctatus) in rock Dapedium is a primitive neopterygian (new fins) species of fish that developed during the late Triassic an
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Xenacanthus sharks Artwork of two Xenacanthus sharks swimming This genus of prehistoric shark existed during the late Devonian through to the Triass
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Banded sedimentary cliff View of a cliff of sedimentary rocks showing very distinct strata The upper layers of the rocks were deposited about 10 mi
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Xenacanthus sharks Artwork of two Xenacanthus sharks swimming This genus of prehistoric shark existed during the late Devonian through to the Triass
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Listracanthus shark
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Petrified wood Petrified tree logs from the Late Triassic Period (over 206 million years ago) Petrification is a term used to describe the fossilisa
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Fossilised trees in Petrified Forest National Park
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Leaf of the fossil plant Glossopteris
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Mass extinction events over time
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Fossil of Gyrodus circularis an extinct genus of a pycnodont bony fish that evolved in the late Triassic period and lived on throughout the Jurassic
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Xenacanthus fossil shark
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Ichthyosaur snout fossil
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Ichthyosaur snout fossil
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Fossil crinoid and molluscs
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Megazostrodon with its insect prey illustration This extinct prehistoric early mammal was the size of a mouse feeding at night on insects It lived
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Oligokyphus and young illustration This extinct cynodont therapsid was a small herbivorous mammal-like animal that lived 227 to 180 million years ag
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Lystrosaurus feeding in a wetland area illustration Lystrosaurus (a therapsid) was a herbivorous burrowing animal varying in size but typically aro
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Scleromochlus skeleton illustration
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Prosauropod dinosaur Computer illustration of a prosauropod in a prehistoric landscape Prosauropods (also known as plateosaurids) were sauropodomorp
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Icarosaurus prehistoric lizard illustration
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Coelophysis dinosaur illustration Coelophysis bauri was one of the earliest true dinosaurs appearing in what is now North America in the Late Trias
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Brachiosaur digestive system illustration The digestive system organs shown here include the oesophagus (upper left) the stomach (centre right) th
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Brachiosaur musculature illustration This dinosaur was one of the largest-ever land animals weighing up to 90 tonnes and measuring over 20 metres f
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Pterosaur flying reptile skimming illustration Pterosaurs existed from 228 to 66 million years ago from the late Triassic to the end of the Cretace
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Earwig (right family Diplatyidae) preying on caterpillar (left) Earwigs (order Dermaptera) are nocturnal insects spending the day in moist dark cav
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Newly moulted earwig Earwig that has just moulted (left) next to a normal adult (right) Earwigs (order Dermaptera) are nocturnal insects spending t
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Ichthyosaur preying on an ammonite illustration A juvenile ichthyosaur is at right Ichthyosaurs were marine reptiles that lived from 248 to 90 mill
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Saurosuchus and Hyperodapedon reptiles illustration Saurosuchus (background) was a crocodile-like predatory reptile that reached lengths of 7 metres
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Prosauropod and theropod dinosaurs illustration The large prosauropod dinosaur (left) is surrounded by four smaller theropod dinosaurs Prosauropods
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Scleromochlus reptiles illustration One of the reptiles has caught a beetle The Scleromochlus reptiles existed during the Late Triassic around 230
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Petrified wood specimen Petrifaction describes the fossilisation of wood It occurs when pieces of wood fall into sediments and are rapidly covered
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Plateosaurus dinosaur illustration This herbivorous dinosaur lived about 210 million years ago in the Late Triassic It had five-fingered hands and
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Fossilised tooth of a Phytosaurus from the Rhaetian age (Late Triassic) dating 205 million years ago in what is now Nancy France This tooth measur
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