A very unknown and interesting little tidbit about 14th century England
is that these fossil sea urchins were so abundant and of such a regular size and mass (one pound exactly)
that Oxfordshire milk-maids used them as a counterweight for butter scales up into the 18th century.
These fossils, which were inexplicably found lying in thousands on open fields far from the sea,
were known as "Chedworth Buns," "Checkbury Buns," or "Poundstones."
They became so popular that they started being used for weights in all other materials such as beads, wool, or flour.
But since different numbers of stones were used for different sale items, trade with other countries was very hard,
so a royal statute in 1389 decreed that the official poundstone, or "stone" for short, would be 1 stone for butter,
26 stones for a sack of wool, and 5 stones for glass.
That is how today's English measurement for people and animals, the stone, got its origins.

Clypeus plotti.

Sea Urchin Echinoid
Clypeus plotti

U uk16
Wyck, Rissington,
Gloucestershire, U.K.

Jurassic 180 Million years old

Specimen is 95x100mm.
Aust. $85.00
All sizes are approximate
This is a one only fossil and may not be available.

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