Mesozoic Collection (page 8)

Ptilophyllum pectinoides
Jurassic leaves of the extinct cycad like bennettitalean gymnosperm from Yorkshire, England. Specimen held at the Natural History Museum, London

Cycadeoidea microphylla
Jurassic extinct bennettitalean cycad like plant from Isle of Portland, Dorset, England. Specimen held at the Natural History Museum, London

Sagenopteris phillipsi, seed fern
Sagenopteris phillipsi, an extinct gymnosperm from the Jurassic period collected at Cayton Bay, Yorkshire, England. Specimen held at the Natural History Museum, London

Gryphaea arcuata Lamarck, fossil oysters
About 190 million years old, found in the Lias clays and limestones of the Jurassic period. Commonly called Devils Toenails

Petrified wood
Close-up showing the petrified wood from the coniferous forest, Arizona, U.S.A dating back to the Triassic period 200 to 251 million years ago

Isle of Wight amber
Spider in Isle of Wight amber. Lower Cretaceous about 130 million years old. Borrowed from Museum of Isle of Wight Geology

Todites denticulatus
Jurassic fossil leaf from York, England. Specimen held at the Natural History Museum, London

Tyrannosaurus rex, Upper Cretaceous dinosaur
Model of the animatronic scavenger T. rex manufactured by Kokoro Dreams, Tokyo. T. rex The Killer Question exhibition at The Natural History Museum, London

Stegosaurus
A herbivorous dinosaur that lived during the Upper Jurassic period, 155 to 144 million years ago. It has distinctive large plates which run from its neck to its tail. Illustration by Jo Konopelko

Hildoceras bifrons, snakestone ammonite
A snakestone ammonite (Hildoceras bifrons) from the Jurassic Lias rocks of Yorkshire, U.K

A fossil Kosmoceras, ammonite
Kosmoceras, a genus of ammonite which lived during the Jurassic period

Lufengosaurus was a long necked quadrupedal & bipedal dinosaur that fed on plants and lived during the Early Jurassic period 208 to 200 million years ago. Fossils have been discovered in China

Agathis jurassica, fossil plant

Ginkgo huttoni, fossil plant
This specimen of Ginkgo huttoni is from Yorkshire, England

Zamites gigas, fossil plant
This specimen of Zamites gigas is from Yorkshire, England

Cyclothyris difformis, brachiopod
Shown here ia a rhynchonellid brachiopod from the Cretaceous of Devon. Brachiopods belong to their own phylum (Brachiopoda). General characteristics include a pair of protective shells

Limulus polyphemus, horseshoe crab
Fossil of the oldest crab in the world. The species is estimated to be at least 300 million years old and is characterised by a long, pointed tail

Ichthyosaurus communis (Conybear)
A fossil specimen of an Ichthyosaurus from the Lower Lias, Lyme Regis, Dorset. On display at The Natural History Museum, London

Rhamphorhynchus
A model of the Rhamphorhynchus, a Pterosaur, an extinct giant flying reptile. They lived around 150 million years ago during the Jurassic period

Araucarioxylon arizxonicum, conifer
Polished section through the trunk of Araucarioxylon arizxonicum, the dominant conifer of Petrified Forest National Park, Arizona, USA. Width approx. 25 cm. Dates back to the Late Triassic period

Palaeocoma egertoni, fossil brittle star
A fossil brittle (serpent) star found in the Jurassic and Lias of England. Maximum diameter 8cm. This specimen is a well-known Echinoderm genus and similar to todays living brittle stars

Protoceratops

Torvosaurus claw
A fossil claw once belonging to the dinosaur, Torvosaurus whose name means savage lizard. It was a carnivore which lived during the upper Jurassic period. Its fossils have been found in Colorado, USA

Hypsilophodon
A model of Hypsilophodon, a Lower Cretaceous period dinosaur, living 125 million years ago. Its fossils have been found in England and Spain, being first described by Huxley in 1869

Lower Chalk

Benthosuchus sushkini
A fossil skull once belonging to an amphibian which lived during the Triassic period, 230 million years ago. This fossil originates from the Triassic rocks of the Scharzhenga river, Vachnevo Russia

Actinopora disticha, bryozoan
Scanning electron micrograph of a fossil cyclostome bryozoan from the Cretaceous Chalk, Santonian, Kent

Meliceritites semiclausa, bryozoan
Branching colony of a fossil cyclostome bryozoan. Specimen originates from the Lower Cretaceous Faringdon Sponge Gravel, Faringdon, Oxfordshire

Early flowering plant model
Model of an early flowering plant from the Cretaceous (144 to 65 mya)

Belemnitella mucronata, belemnite
71-65 million year old squid-like belemnite specimen from the Late Cretaceous, Mstricht, Holland

Cryptoclidus eurymerus
A fossil reconstruction of Cryptoclidus eurymerus, a Plesiosaur that lived 165-160 million year ago during the Middle Jurassic. This specimen was discovered in Peterborough, UK

Wilbertopora woodwardi (Brydone), bryozoan
Scanning electron micrograph of a fossil cheilostome bryozoan. Specimen originates from the Upper Cretaceous Chalk, West Mean Station, Hampshire, U.K

Fossil leaf of an early flowering plant
89-65 million year old specimen of an unidentified flowering plant species from the Late Cretaceous, Sachsen, Germany

Platyphysa prinsepi, freshwater snails
65 million year old freshwater snail specimens that were engulfed by lava flows. Originating from the Late Cretaceous, Nagpur, India

Fossil ammonites used as memorial stone
Asteroceras marstonense (larger ammonites) and Promicroceras marstonensis (smaller ammonites) used as a memorial stone. Specimen originates from Spath Lower Lias, Marston Magna, Somerset, England

Flint nodule
This flint nodule originates from the Cretaceous rocks of the North Downs, England

Cylindroteuthis oweni Pratt, thunderbolt

Gryphaea dilatata, devils toenail
This giant hooked oyster also known as a devils toenail originates from Sowerby, Upper Jurassic, Scarborough, Yorkshire, England

Ginkgo huttonii, fossilised ginkgo leaves

Beetle in amber

Megazostrodon skull
Specimen from the Late Triassic to Early Jurassic of Lesotho, Africa. Megazostrodon was thought to be a small, mouse-sized, nocturnal mammal and fed on insects

Protoceratops embryo

Isochirotherium footprint
A cast of fossil footprints, measuring 38 cms long, from both hind feet of Isochirotherium herculis, an extinct reptile, discovered in Tarporley, Cheshire

Rhynchosaurus footprints
Fossil footprints made by Rhynchosaurus on a slab of Triassic, Keuper Sandstone from a quarry in Rathbone Street, Liverpool. Dimensions of slab are 5 inches x 6 inches

Troodon tooth
A fossil tooth specimen that once belonged to the dinosaur, Troodon. It was a carnivorous dinosaur that lived around 65 million years ago

Stegosaurus skull
A cast of a fossil skull that belonged to Stegosaurus stenops, an Upper Jurassic dinosaur that lived 155 to 144 million years ago. The original fossil was discovered in the USA

Jurassic Britain
An artists impression of Jurassic (206 to 144 million years ago) Britain from space, with forested swamps and warm seas

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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.