Ordovician Collection

Asaphus (Neoasaphus) kowalewskii, stalk- eyed trilobite
A complete 3-dimensional stalk-eyed trilobite measuring about 5 cms, discovered at Wolchow River, near St. Petersburgh, Russia. The specimen dates back to the Middle Ordovician period

Orthocerid hunting trilobites, artwork. Orthocerids are extinct members of the Cephalopoda class of marine animals that include squids, octopuses and nautiloids

Fossil. Crinoid Lily, Ordovician to Pleistocene period, c450 million-10, 000 BC

Trinucleus, trilobite fossil C016 / 4995
Trinucleus, trilobite fossil. Trilobites were arthropods that fed as they crawled on the seabed. They are now extinct. They had a carapace, or shell, that was divided into three parts

Orthograptus (Graptolite) fossil, impression on dark rock, late-mid Ordovician era

Dorsal & Ventral Isotelus platycephalus
Syntype (?Holotype by monotypy) of Asaphus, now Isotelus platycephalus (Stokes, 1824) Ordovician, Black River Group; St Josephs Island, Lake Huron, Ontario Bigsby Colln. Date: 1824

Crystal apple - cystoid echinoderm
NHM E10. Echinosphaerites aurantium (Gyllenhall). Ordovicain, Popouka, St Petersburg, Russia

Model of landform evolution in the prehistoric era, including Quaternary, Tertiary, Cretaceous, Jurassic, Triassic, Permian, Carboniferous, Devonian, Silurian, Ordovician, Precambrian periods

Squid-like Orthoceratites attempt to make meals of trilobites
Squid-like Orthoceratites (genus Orthoceras) attempt to make meals of trilobites of the species Asaphus kowalewskii at the bottom of an Ordovician sea 480 million years ago

Picture No. 10889690
Fossil - Trilobite -(probably: Ceraurus globulobatus) - Length: 48 mm - Mid-Ordovician (Ceraurus sp. ) Date:

A late 19th century classification of the geological strata in time sequence
GEOLOGY: TIME CHART. A late 19th century classification of the geological strata in time sequence, along with typical fossils found in each period

Fossilized Onnia trilobite

Fossilized Sphaerexochus

Cyrtoceras (Nautiloid) shell, Ordovician era

Fossilized Selenopeltis trilobite

Tetragraptus (Graptolite) fossil, cross on square brown rock, early Ordovician era

Phyllograptus (Graptolite) fossil, early to mid Ordovician era

Whiteavesia bivalve mollusk fossil

Loganograptus (Graptolite) fossil on dark brown rock, early Ordovician era

Ptilodictya

Croft Quarry C017 / 7274
Croft Quarry, between Leicester and Hinckley, Leicestershire, UK. This quarry is one of the largest excavated holes in Europe. It is a major source of granite for the construction industry

Fossil Graptolites C016 / 9741
Fossil Graptolites

Mineral oxide layer C016 / 9738
Irridescent mineral oxide layer caused by weathering on a piece of Ordovician shale at Abereiddy, West Wales

Paraceraurus exsul C015 / 0728
Paraceraurus exsul Beyrich 1846. Ordovician, Llanvirn series, Dubovici Formation, Duboviki, River Volchov, St Petersburg, Russia. Pete Lawrance collection

Lonchodomas incgeehi, larval trilobite, Poolville member, Bromide Formation, Ordovician, Criner Hills, Oklahoma

Ampyx cf priscus Lower Middle Arenig, Upper Fezouata Fprmation, Ait Zolli, Draa Valley, Morocco. Pete Lawrance collection

Eohapes sp
Eoharpes sp. Ordovician, early Caradocian, Izegguirene Formation, First Bamr group Bou Nemrou El Kaid Errami, Morocco. Eoharpes is an early example from the trilobite order Harpetida

Paraceraurus exsul Beyrich 1846. Ordovician, Llanvirn series, Dubovici Formation, Duboviki, River Volchov, St Petersburg, Russia. Pete Lawrance collection

Calymene sp. C015 / 0746
Calymene sp. Ordovician, Uppermost Llanvirn Series, Rehamna, Morocco

Stubblefieldia sp. C015 / 0707
Stubblefieldia sp. Ordovician, Caradocian, Ikhf-n-Ouzreg, Morocco.This trilobite genus is named after Sir (Cyril) James Stubblefield FRS (1901" 1999) was a British geologist

Armoured Worm
Plumulites sp. Macheridian armoured worm. Ordovician, Mercissi, Er Rachida, Morocco

Stubblefieldia sp. C015 / 0693
Stubblefieldia sp

Ordovician trilobites
Selenopeltis buchi buchi Barrande 1846 & Onnia cf coboldi Ordovician Llanvirn Series, Schists du Tachilla, Tiznit District, Morocco

Dalmanitina sp. C015 / 0750
Dalmanitina sp. (curved genal spines) Ordovician, Uppermost Llanvirn, Rehjamna, Morocco. The genus is named after the naturalist and palaeontologist Johan Wilhelm Dalman (1787-1828)

Stalk-eyed trilobite fossil C016 / 5560
Stalk-eyed trilobite (Asaphus kowalewskii). A complete 3-dimensional stalk-eyed trilobite fossil measuring approximately 5 centimetress, discovered at Wolchow River, near St. Petersburgh, Russia

Didymograptus, graptolite fossil C016 / 4848
Didymograptus, graptolite fossil. Graptolites are an extinct group of marine, colonial animals. Known for their tuning-fork shape, they formed part of ancient plankton

Orthoceras, nautiloid fossil C016 / 4847
Orthoceras, nautiloid fossil. This extinct marine nautiloid cephalopod is related to the squid and octopus. It lived during the Ordovician, and has been found in Europe

Remopeurides, a fossil trilobite
Probably planktonic, Remopeurides is a small trilobite - this Scottish Ordovician example being less than 2 cm long - with an inflated glabella

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

Chasmatopora furcata eichwald, bryozoan
This bryozoa specimen is 470-458 million years old, dating from the Middle Ordovician period, Kuckersits, Estonia

Cothurnocystis elizae Bather, carpoid
The carpoids were a member of the Echinoderms. Specimen dates from the Upper Ordovician, Armillan Series, Drummuck Group Starfish Bed. Ayrshire c. 449m yrs old

Trinucleus, a fossil trilobite
The pitted cephalic fringe is clearly seen in this 1.3 cm wide specimen of Trinucleus from the Ordovician of Wales

Trinodus, a fossil trilobite
Measuring less than a cm, this Scottich Ordovician trilobite Trinodus has a much reduced thorax between the larger head and cephalon

Platanaster ordovicus, starfish
This echinoid dates from the Ordovician period. Starfish belong to the Echinoderm spiney skinned and were mostly bottom dwellers. They are also characterised by five-fold symmetry

Didymograptus murchisoni, graptolite
This is an Ordovician tuning-fork shaped graptolite from Wales. Graptolites are an extict group of marine, colonial animals

Ordovician Britain
An artists impression of an eroded Ordovician (490 to 443 million years ago) volcano and shore line near Builth Wells, Powys

Orthoceras, nautiloid
Shown here is Orthoceras, a straight Ordovician nautiloid

Conodonts, tooth like fossils
These microscopic tooth like fossils are from the Ordovician period of the Ludlow area, Shropshire, UK about 420m yrs old (Magnification x 3.8)

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"Exploring the Ancient Seas: Unveiling the Mysteries of the Ordovician Era" Step back in time to the captivating world of the Ordovician period, approximately 450 million to 10, 000 BC. Delve into a realm teeming with fascinating creatures and breathtaking landscapes that shaped our planet's history. Amongst these ancient marine inhabitants was Asaphus (Neoasaphus) kowalewskii, a remarkable stalk-eyed trilobite. Its unique appearance and intricate exoskeleton have captivated scientists for centuries, offering valuable insights into prehistoric life. Witness an extraordinary scene as Orthocerid hunting trilobites come alive through artwork. These squid-like predators relentlessly pursued their prey, showcasing nature's eternal cycle of survival and adaptation. Marvel at the exquisite beauty of a Fossil Crinoid Lily, preserved throughout countless millennia. This delicate creature thrived during this era and serves as a testament to its enduring legacy. The Dorsal & Ventral Isotelus platycephalus fossils provide us with invaluable clues about ancient ecosystems. These well-preserved specimens allow us to reconstruct past environments and understand how life flourished during this epoch. Gaze upon the mesmerizing Crystal Apple - a cystoid echinoderm frozen in time. Its intricate structure reveals nature's artistry while shedding light on evolutionary processes that shaped our world. Trinucleus, another trilobite fossil C016 / 4995 offers further glimpses into this bygone era. Immerse yourself in its detailed features and ponder over its significance within Earth's geological timeline. A model depicting landform evolution across various periods takes you on an awe-inspiring journey through time – from Quaternary to Precambrian eras. Witness firsthand how our planet transformed over millions of years before human existence came into being. Discover an intense struggle for survival as squid-like Orthoceratites attempt to make meals of trilobites.