Sedimentary Collection (page 3)

Protaxocrinus tuberculatus (Miller)
A fossil specimen of Protaxocrinus tuberculatus (Miller), a crinoid, dating back to the Silurian period (440 million years ago), discovered in the Wenlock Limestone bed, Dudley, Worcestershire, UK

Myedactylus flecheri (Salter)
A fossil specimen of Myelodactylus fletcheri (Salter) dating back to the Silurian period (440 million years ago), discovered in Wenlock Limestone bed, Dudley, Worcestershire, UK

Common rock types
A collection of common rock types - left to right - Igneous (granite), sedimentary (sandstone) and metamorphic (schist)

Asteroxylon mackiei, clubmoss
A wax model reconstruction of the Early Devonian plant Asteroxylon mackiei, a clubmoss, approximately 10cm tall. Original specimen discovered at Rhynie Chert, Scotland

Piltdown flake implement
Piltdown, Sussex item E.612 held at The Natural History Museum, London

Piltdown flints
Collection of Piltdown flints held at The Natural History Museum, London

Piltdown Eolithic flint
Piltdown, Sussex item E.614 held at The Natural History Museum, London

Piltdown rolled flake
Piltdown, Sussex item E.613 held at The Natural History Museum, London

Piltdown flint implement
Piltdown, Sussex item E.605 held at The Natural History Museum, London

Piltdown Palaeolith flint
Piltdown, Sussex item E.685 held at The Natural History Museum, London

Trigonocarpus parkinsoni
Large nutlike seeds (about 2.5cm long) from the coal measures of England dating from Upper Carboniferous. Specimen held at the Natural History Museum, London

Harry Morris Flint

Ripple-marked sandstone
Tide formed, symmetrical, ripple marks shown here in this specimen of fossilised in sandstone

Foraminiferal limestone
Nummulitic limestone made up of the hard parts of billions of foraminiferans

Homo neanderthalensis (calpicus) cranium (Gibraltar 1)
Frontal view of an adult female Neanderthal cranium discovered at Forbes Quarry, Gibraltar. Its discovery was announced by Lieutenant Flint in 1848 and it is believed to be 50, 000 years old

Anorthosite breccia, moon rock
Specimen of anorthosite breccia or moon rock collected on the Apollo 16 mission in April 1972, and mounted in an acrylic block for protection and display

Raper drawing No. 5
View of SW coast of the Isle of Wight, 1. St Catherines Point; 2. the Needle Point. Painting by George Raper, 1789

Charcoal
Specimen of commercial charcoal produced from wood. Charcoal is created by burning organic substances such as wood in the absence of oxygen

Tillite
This Tillite specimen is from Kimberley, South Africa. Tillites are the consolidated remains of the rock fragments and powder that are left behind as a glacier melts and retreats

Septarian nodule

Coccoliths magnified a thousand times
An illustration of Coccoliths magnified a thousand times. Coccoliths are micro-fossils and feature heavily in the composition of chalk

Neanderthal artifacts
Stone tools believed to once have belonged to Neanderthal Man (Homo neanderthalensis) who lived in Gorhams Cave, Gibraltar

Dinosaur egg
Found at the Kallankurichi Limestone Mine, India. Was V26861

Lower Chalk

6 million year old fossiliferous sandstones

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

Coal

Ripple marks
This sedimentary rock displays fossilised ripple marks which are evidence of flowing waters

Banded iron formation
3, 000 million year old specimen of banded iron-rich chert from the Murchison Goldfield, Western Australia. The banding derives from differing amounts and oxidation state of the iron composite

Sedimentary layer of rock shows the effects of drought. A layer of dried-out mud was overlain with darker sediment which filled the cracks - the whole was then compacted and changed to rock

Puddingstone is a conglomerate or mixture of different, irregular sized grains and pebbles held together by a finer matrix

Shale
Compacted platy clay particles give shales their typical laminated structure. Shale is a sedimentry rock which is composed of many fine-grained clay particles

Sandstone is formed by loose grains of quartz compacted and cemented together

Flint hand-axe
Late Palaeolithic from Farnham, Surrey, England

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

Dalmanites myops, trilobite
A Silurian fossil trilobite from the Wenlock Limestone, Dudley, Worcestershire. This specimen measures 40mm head to tail

Hones for sharpening metal edges
The longest hone here dates back to the 12th century and was discovered in Winchester however the rock type matches specimens of schist from quarries in Eidsborg in Norway

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

Lonsdaleia, coral
Shown here is the Carboniferous coral, Lonsdaleia. Corals comprise a soft bodied animal called a polyp. Each polyp inhabits a calcareous skeleton called a corallum

Slate
Cambrian slate from North Wales. Slate is metamorphosed shale

Hyolithes, primitive mollusc
Shown here is Hyolithes, a Cambrian primitive mollusc. Hyolithes had an oval or cone-shaped, elongated shell and often occured in clusters along bedding planes of Cambrian shale

Sandstones
A collection if sandstones showing colour variations. Clockwise from the left: green Ightham Stone, brown St Bees, beige L Coal Measures from Derbyshire and striped from Stirling

Quartzite

Rhynia major, fossilised plant
A complete soft tissue preservation at the cellular level in Rhynia major. Transverse section through stem, approximately 2mm in diameter. From Rhynie Chert, Scotland, Early Devonian

Coal, from the late carboniferous
Coal is formed from fossil plants. The regular pattern on the surface of this 14 cm long piece is the impression of the bark of a fossil tree; Lepidodendron

Turquoise vein in shale
Turquoise (hydrated copper aluminum phosphate) vein in shale, from Victoria, Australia. Turquoise is perhaps the most valuable non-transparent mineral

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