Mesozoic Collection (page 4)

Thecosmilia trichotoma, colonial coral
Colonial coral originating from the Jurassic rocks of Nattheim, Germany, c. 170 million years ago. Paul Morh collection

Massospondylus
Outline illustration of a Massospondylus

Orodromeus
Outline illustration of an Orodromeus

Tenontosaurus
Outline illustration of a Tenontosaurus

Troodon
Outline illustration of a Troodon

Camarasaurus
Outline Illustration of a Camarasaurus

Stramentum, a fossil barnacle
Cretaceous goose-necked barnacle Stramentum from the Chalk of Kent, England, about 2 cm wide

Ventriculites, sponge
A Cretaceous flint broken open to reveal the sponge Ventriculites with a root-like base

Sphecidae sp. digger wasp
Shown here is a fossilized wing of a digger wasp. This specimen is around about 130 million years old and originates from the Cretaceous rock of Surrey, England

Ophioderma egertoni (Broderip), brittlestar
Brittlestars belong to the echinoderms and are a close relative of sea stars. This specimen dates from the Middle Lias of the Jurassic from Bridport, Dorset c. 195-189 million years old

Cryptoclidus
A fossil skeleton of Cryptoclidus, a plesiosaur that lived 165 to 150 million years ago during the Late Jurassic period. Fossils have beeen found in England, France, Russia and South America

Pachyrhinosaurus
This dinosaur, whose name means thick nosed lizard was a herbivore living during the Upper Cretaceous period, 76-74 million years ago

Pholiodophorus bechei, fossil fish
A bony fish specimen preserved in the Jurassic rocks near Lyme Regis, Dorset

Uintacrinus, stemless crinoid
A black and white photograph of a stemless crinoid, which dates from the Cretaceous. Crinoids have five or more feathery arms radiating from a central disc

Promicroceras planicost, jurassic ammonites
A rock specimen containing many Promicroceras a small shelled Jurassic ammonites. Ammonites are an extinct group of marine fossil cephalopods related to todays Nautilus

Gleichenites, Late Jurassic fern
Model of a Late Jurassic fern which would have been found on drier ground

Ammonite internal cast
Shown here is an internal cast of a Jurassic ammonite clearly depicting individually preserved chambers within the coiled shell

Petrified conifer trunk
Containing precious opal, width approx. 10 cm, discovered at White Cliffs, New South Wales, Australia. Dates back to the Late Cretaceous period

Proceratosaurus fossil skull
A fossil skull that belonged to Proceratosaurus, a carnivorous, dinosaur from the suborder of Theropods that lived during the Middle Jurassic period around 169 - 164 mya

Hypsilophodon leg
Cross section model to show how Hypsilophodons large, strong leg-moving muscles were concentrated on the thigh and hip to allow the long lower leg to swing fast through a long stride

Lingula beani, brachiopod
This Jurassic lingulid brachiopod from Yorkshire is a tongue shaped brachiopod, and is composed of calcium phosphate with a shiny lustre which contrasts here with the clay matrix

Lycoptera, bony fish fossil
Fossil of a bony fish found in jurassic China, 206-142 million years ago

Marskea jurassica, conifer
A Middle Jurassic conifer shoot on a fallen block from the cliffs near Whitby, North Yorkshire

Stephanoceras humphriesianum, ammonite
This fossil cephalopod originates from the Inferior Oolite, Middle Jurassic rocks near Sherbourne, Dorset dating from about 170 million years ago

Cenoceras pseudolineatus, nautiloid
A section cut and polished through Jurassic nautiloid from Dorset, UK. Shows the internal chambers filled or partly filled with calcite. Diameter 7cm

Sauropod skin impression
Dinosaurs belonging to the suborder of Sauropods (Sauropoda) like diplodocus had a relatively smooth skin covered in scales of different sizes

Euparkeria
A model of Euparkeria. This was an early archosauriform, a type of carnivorous and terrestrial reptile that lived around 225 million years ago during the Early Triassic period

Cymatophlebia longialata, fossil dragonfly

Credneria triacuminata
A fossil leaf of Credneria triacuminata. Large leaves are indicative of humid tropical climates. This specimen is approximately 17cms wide, it was found in Heidelberg

Ammonite marble
Asteroceras (large shells) and Promicroceras (small shells) ammonites, seen here in the polished surface of a specimen of marble originating from the Lower Lias, near Yeovil, Somerset

Deinocheirus
A pair of arms complete with 30 cm claws on each hand once belonging to Deinocheirus, an Upper Cretactous carnivorous dinosaur. This specimen was discovered in Mongolia

Dilophosaurus
The Dilophosaurus, meaning double crested lizard was a fast predatory dinosaur which lived about 200 to 189 million years ago during the Lower Jurassic. Fossils have been found in Arizona, USA

Symmetrocapulus, limpet
Fossilised specimen of a limpet found in the Jurassic limestone of Les Moutiers en Cinglais, France. 206-142 million years old

Plateosaurus
A fossil reconstruction of the hand and lower leg bones belonging to the dinosaur, Plateosaurus. These dinosaurs were wer herbivorous and may have used these sharp claws for defence

Fossilised Latimeria chalumnae, coelacanth
Fossilised specimen of the coelacanth (Latimeria chalumnae) found in Upper Jurassic, Lithographic Limestone, Bavaria

Huayangosaurus skull
A fossil skull that once belonged to Huayangosaurus, a dinosaur from the infraorder Stegosauria. This specimen was discovered in Sichuan, China in 1982

Acroceolites subtenius, belemnites
A fine group of belemnites (Acroceolites subtenius) preserved in soft Jurassic shale from Yorkshire. Longest specimen is 9cm long

Jurassic seascape
Artists impression of a Jurassic sea with Ichthyosaur, Plesiosaur and Pterosaur. The Jurassic period was 205-144 million years ago

Fossilised Mesolimulus
This fossil, Mesolimulus, a horseshoe crab, is an impressive 40 centimetres long. Preserved in the fine mud of a lagoon in Solenhofen, Germany, about 150 million years ago

Protoceratops eggs
A nest containing eggs from Protoceratops discovered in the Gobi Desert, Mongolia. They date back to the Upper Cretacous period. Protoceratops, a herbivore, lived 85 to 80 million years ago

Pterodactyl kochi

Diplodocus foot
Detail of the replica diplodocus skeleton on display at the Natural History Museum. The three inner toes of the back foot had sharp claws which may have acted as an anti-slip device

Micraster coranguinum, echinoid
This a common heart-shaped Cretaceous sea-urchin originates from the Upper Chalk. This specimen is preserved in its original calcite and its length is around 6cm

Fossilised Acanthochirana cordata, prawn
Fossilised prawn specimen from Solenhofen, Germany dating from the Upper Jurassic, 250 million years ago

Stylina alveolata, reef coral
A reef building coral originating from Jurassic limestones in Europe, eastwards into Asia Minor, and also in the U.S.A

Ichthyosaur, Stenopterygius quadriscissus (Quenstedt) close-
This Ichthyosaur has been preserved with the broken-up skeletons of the unborn young inside. A fourth may have just been born - its skeleton can be seen below her tail

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