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Corals, Bryozoans, Brachiopod, Bivalve & Nummulite Fossils

Although corals first appeared in the Cambrian period, some 542 million years ago, fossils are extremely rare until the Ordovician period, 100 million years later, when rugose and tabulate corals became widespread. Tabulate corals occur in limestone and calcareous shale of the Ordovician and Silurian periods, and often form low cushions or branching masses of calcite alongside rugose corals. Their numbers began to decline during the middle of the Silurian period, and they became extinct at the end of the Permian period, 250 million years ago. Rugose or horn corals became dominant by the middle of the Silurian period, and became extinct early in the Triassic period. The rugose corals existed in solitary and colonial forms, and were also composed of calcite.  
Fossils of about 15,000 bryozoan species have been found. Bryozoans are among the three dominant groups of Palaeozoic fossils. The oldest species with a mineralized skeleton occurs in the Lower Ordovician. It is likely that the first bryozoans appeared much earlier and were entirely soft-bodied, and the Ordovician fossils record the appearance of mineralized skeletons in this phylum. 

The
Cambrian explosion took place around 540 to 520 million years ago (Mya). In this geologically brief period, all the major animal phyla diverged and these included the first creatures with mineralized skeletons. Brachiopods and bivalves made their appearance at this time, and left their fossilized remains behind in the rocks.
Coral populations are still around today, but are facing challenging times due to rising sea levels, human pollution, and damage from irreparable harvesting of protected areas.


Arachnophyllum pentagonam 
And Polished colonial corals, Horn Corals and Natural Coral heads in this section

Beautifully polished specimens of Arachnophyllum pentagonam, a colonial coral and Heliophyllum sp. Horn Coral.   We also have on occasion, Phillipsastrea
​These are found in Assa Zag, Western Sahara Desert, Morocco. Devonian age, 350 MYO. 

Moroccan Heliophyllum Horn Coral Display 096

£7.99
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Moroccan Heliophyllum Horn Coral Display 099

£16.99
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Moroccan Heliophyllum Horn Coral Display 101

£24.99
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Moroccan Heliophyllum Horn Coral Display 104

£14.99
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Moroccan Heliophyllum Horn Coral Display 107

£17.99
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Moroccan Heliophyllum Horn Coral Display 109

£14.99
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Medium Moroccan Heliophyllum Horn Coral Display Set C1

£12.99
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Medium Moroccan Heliophyllum Horn Coral Display Set C4

£12.99
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Medium Moroccan Heliophyllum Horn Coral Display Set C11

£12.99
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Medium Moroccan Heliophyllum Horn Coral Display Set C12

£12.99
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Medium Moroccan Heliophyllum Horn Coral Display Set C14

£12.99
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Medium Moroccan Heliophyllum Horn Coral Display C16

£9.99
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Medium Moroccan Heliophyllum Horn Coral Display C17

£9.99
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Medium Moroccan Heliophyllum Horn Coral Display Set C22

£8.99
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Medium Moroccan Heliophyllum Horn Coral Display Set C23

£8.99
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On Sale

On Sale

Hexagonaria davidsoni Coral head 02

£24.99 £17.99
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On Sale

On Sale

Hexagonaria davidsoni Coral head 03

£22.99 £15.99
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Hexagonaria davidsoni Coral head 04

£8.99
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Hexagonaria davidsoni Coral head 05

£8.99
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Hexagonaria davidsoni Coral head 07

£9.99
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Hexagonaria davidsoni Coral head 011

£10.99
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Hexagonaria davidsoni Coral head 012

£7.99
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Hexagonaria davidsoni Coral head 014

£8.99
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Hexagonaria davidsoni Coral head 016

£8.99
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Hexagonaria davidsoni Coral head 017

£8.99
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Hexagonaria davidsoni Coral head 020

£22.99
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Hexagonaria davidsoni Coral head 021

£27.99
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Hexagonaria davidsoni Coral head 022

£22.99
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Hexagonaria davidsoni Coral head 023

£27.99
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Hexagonaria davidsoni Coral head 024

£36.99
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Hexagonaria davidsoni Coral head 025

£15.99
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Hexagonaria davidsoni Coral head 026

£15.99
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Hexagonaria davidsoni Coral head 027

£15.99
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Hexagonaria davidsoni Coral head 028

£15.99
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Hexagonaria davidsoni Coral head 029

£15.99
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Hexagonaria davidsoni Coral head 030

£15.99
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Hexagonaria davidsoni Coral head 031

£15.99
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Hexagonaria davidsoni Coral head 032

£15.99
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Large Hexagonaria davidsoni Coral head 033

£47.99
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Large Hexagonaria davidsoni Coral head 034

£37.99
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Large Hexagonaria davidsoni Coral head 035

£39.99
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Large Hexagonaria davidsoni Coral head 036

£46.99
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Large Hexagonaria davidsoni Coral head 037

£36.99
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Dudley Silurian Seabed Fossils, Wenlock Series, UK
Silurian age seabed fossils from Dudley, United Kingdom.  Classic UK fossils that most collectors really want to own.  They make outstanding display pieces, draw specimens, and are popular with many artists too.  The wenlock series is a fascinating look at the Silurian world.


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