COLD DARK ROOM

Tidgy's Dad

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Fossils from Mazon Creek, Illinois, sent by a lovely chap on the Fossil Forum who lives nearby.
These are Upper Carboniferous (Pennsylvanian) in age, the same age as the Radstock Coalfield in South West England and with some of the same plants.
307 million years old
This is Pecopteris; a tree fern.

20180110_212308-1.jpg
Preserved in little nodules 3.5 cm long.
 

Tidgy's Dad

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Annularia stellata, leaves of a giant horsetail ;
get_picture.php
20180110_212757-1.jpg
Biggest nodule 4.5 cm
 

Maro2Bear

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Glenn Dale, Maryland, USA
Fossils from Mazon Creek, Illinois, sent by a lovely chap on the Fossil Forum who lives nearby.
These are Upper Carboniferous (Pennsylvanian) in age, the same age as the Radstock Coalfield in South West England and with some of the same plants.
307 million years old
This is Pecopteris; a tree fern.

View attachment 227359
Preserved in little nodules 3.5 cm long.

Very cool..
 

Tidgy's Dad

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On the left is Cyclus americanus and on the right Belotelson magister, a shrimp-like creature, see all the little legs and antennae?
Th cyclids were animals that performed the same ecological function as crabs do today, they flourished in the Carboniferous and Permian, survived the Triassic but went into decline in the Jurassic as crabs eveolved and flourished. They died out at about the same time as the dinosaurs near the end of the Cretaceous period
20180110_213126-1.jpg
The shrimp nodule is about 4 cm long.
Cyclus looked like this,
cyclus_drawing.jpg

But I doubt it was this colour.
Its closest living relatives are fish lice.
 
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