Mesozoic Collection (#6)

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

Hemicidaris intermedi, Jurassic sea urchin
This specimen is particularly well-preserved retaining its spines where they fell around the animal as it died

Plegiocidaris coronata, sea urchin
A fossil echinoid or sea-urchin from the Jurassic rocks of Ulm, Germany

Harpagodes wrightii, gastropod
A Jurassic gastropod originating from Gloucestershire, England

Paracyclotosaurus davidi, model
A reconstruction from the only known specimen of Paracyclotosaurus davidi, a Labyrinthodont, an early amphibian whose skeleton was 2.75 metres long

Saurornitholestes
Model of the fast moving Saurornitholestes manufactured by Kokoro Dreams, Tokyo. In T. rex The Killer Question exhibition at the Natural History Museum, London

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Step back in time to the Mesozoic era, where ancient creatures roamed the Earth's oceans and land. Among them were magnificent marine reptiles like the Ichthyosaurus and Plesiosaurus, now long extinct but forever etched in history. These fascinating beings ruled the seas with their sleek bodies and powerful fins, leaving behind a legacy of awe-inspiring fossils. One such fossil is that of Asteroceras, an ammonite from this bygone era. Its intricate spiral shell tells tales of a world we can only imagine. On land, towering giants like Diplodocus grazed upon lush vegetation while fearsome predators like Spinosaurus prowled nearby. Through captivating artwork, we catch a glimpse into their majestic existence. But it wasn't just these remarkable creatures that defined the Mesozoic period; it was also marked by significant geological events. Continental drift reshaped our planet around 100 million years ago, altering landscapes and creating new habitats for life to thrive. This phenomenon allowed species like Ichthyosaurus acutirostris to adapt and evolve in different regions across the globe. In addition to marine reptiles and dinosaurs, birds began taking flight during this time as well. Archaeopteryx emerged as one of nature's early experiments with flight – a mesmerizing blend of avian features fused with reptilian characteristics. And let us not forget about Pterodactyls soaring through prehistoric skies with their impressive wingspans. The Kelloways Stone serves as another testament to this extraordinary epoch – a treasure trove containing countless remnants from this distant past preserved within its layers. It holds secrets waiting to be discovered by intrepid paleontologists who seek answers about our planet's ancient inhabitants. As we delve into the wonders times, we are reminded that our world has undergone incredible transformations throughout history – both on land and beneath vast oceans - leaving behind imprints of extraordinary life forms that continue to captivate our imaginations.