Sedimentary Rock Collection (page 2)

Oolitic limestone
An oolitic limstone originating from Rutland, U.K showing the perfectly rounded ooliths of which it is composed. Formed in shallow, agitated marine conditions, and only in warm climates

Cephalaspid, fishes
Block of Old Red Sandstone from the Lower Devonian period about 400 million years ago containing the skeletons of cephalaspid fishes

Hand-axes, blades & harpoon
The two axe-heads on the left are from the Middle Palaeolithic about 40, 000 BC; the three specimens on the right are from the Upper Palaeolithic abot 20, 000 BC (Agfa Film)

Chrysobotris, fossil beetle
An early Cretaceous fossil beetle from the Lithographic Limestone, Lerida, Spain

Agate
This polished agate specimen from Saxony is called Breccia Sanguigna. This brecciated agate comprises mainly of irregular sized fragments of cryptocrystalline quartz, set in a finer matrix

Junction of granite and limestone
Fig 88 from Principles of Geology, being an attempt to explain the former changes of the Earths surface. Vol. 3 1832-33 by Charles Lyell (1797-1875)

Breccia Coralina Rosa, marble
Polished specimen of the metamorphic rock marble from a ruin of ancient Rome

Flint artifact (Goughs Cave)
Creswellian flint artifacts excavated from Goughs Cave, Cheddar, Somerset dated at around 14, 000 to 12, 000 years old, late upper palaeolithic (Creswellian)

Concretions with ammonites (saligrams)

Coal mine at Sandy Point, Strait of Magellan
A photograph taken during the voyage of H.M.S. Challenger (1872-1876) funded by the British Government for scientific purposes

Metaldetes
A small block of limestone, 5 cm across, from the Cambrian of South Australia, containing sectioned specimens of the archaeocyathan sponge Metaldetes

Marble, Breccia Coallina Rosa
Specimen number BM 82645, from the Ruins of Ancient Rome

Marble, Breccia Sanguigna
Specimen number BM 50289, from Saxony

Didymograptus, fossil graptolite
The two tuning-fork graptolite on this piece of Welsh Ordovician shale belong to the genus Didymograptus and have branches some some 5 cm in length with sawtooth-like thecae

Calcareous Sandstone, Bermuda 1873
A photograph taken during the voyage of H.M.S. Challenger (1872-1876), funded by the British Government for scientific purposes

Belemnitella minor, belemnites
Natural History Museum specimens of belemnites or thunderbolts from the Paramoudra Chalk of Norfolk

Fossil prawn
Specimen of a fossilied prawn preserved in the Solnhofen Pink Limestone, Germany

The Abee EH4 enstatite chondrite
Abee fell in Canada in 1953. The cut surface clearly shows the metal-rich and brecciated texture of Abee

Tylocidaris clavigera (Konig), sea-urchin
This sea-urchin has highly characteristic club-like spines and is 80-83m yrs old. Specimen originates from the Upper Cretaceous Upper Chalk, S. England

Banded iron specimen
This banded iron specimen measures 7 cm thick and is about 3, 000 million years old, from the Murchison Goldfield, Western Australia

Foraminiferan remains from the White Cliffs of Dover, U.K. The cliffs are made up of unimaginable numbers of chalky shells of long dead marine animals

Rana species, fossil frog
Specimen originates from soft Miocene shale from Spain. Skeletal anatomy preserved in its entirety with an outline of the soft parts clearly visible. This specimen measures 12 cms long

Crinoidal limestone

Acidaspis coronata, spiny trilobite
A spiny odontopleurid Silurian trilobite from Worcestershire, England preserved in limestone. The specimen length is 2.5 cms

Cheirolepis, fossil fish
A fossil fish from the Old Red Sandstone with minute square scales and a single dorsal fin

Flint tool from the Pakefield excavation site. Manmade stone tools have been discovered in Suffolk, in the UK, and indicate humans were living there at least 680, 000 years ago

Pakefield flint tools
Flint tools from the Pakefield excavation site. Manmade stone tools have been discovered in Suffolk, in the UK, and indicate humans were living there at least 680, 000 years ago

Flint tools from the Pakefield excavation site. Manmade stone tools have been discovered in Suffolk, in the UK, and indicate humans were living there at least 680, 000 years ago

Travertine is a decorative rusty coloured limestone marble from Spain. Marble is metamorphosed limestone

Shale
A specimen of shale containing small nodules of clay ironstone from the Lower Coal Measures, Brynamman, Carmarthenshire

Dizgocrinus mon, fossil crinoid
This fossil crinoid or sea-lily originates from the limestones of Keokuk, Lowa, USA

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

Limestone (right) and marble (left)
Limestone is sedimentary and marble is metamorphic in origin. Specimen held at the Natural History Museum, London

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

Concretions

Thursius pholidotus, fossil fish
This shows a Devonian fish originating from the Old Red Sandstone near Thurso, Scotland

Millstone Grit, Stanage Edge, Derbyshire
A Millstone Grit outcrop at Stanage Edge, Derbyshire. Old, discarded mill stone wheels can bee seen in the foreground

Hand-axe
Flint hand-axe of Acheulian culture (Lower Palaeolithic) with rounded spall pot-lid split by frost action. Specimen from University of London, Institute of Archaeology

Early Precambrian Coast
Barry Evanss impression of an early Precambrian (4, 500 to 543 million years ago) ocean with volcanic and sedimentary rocks

Waptia fieldensis, arthropod
The arthropod Waptia fieldensis, found in the Burgess Shale of Canada

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

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