Here is a inexpensive example of a Ogygiocarella debuchii with fine details.
The fossil shows nicely the hypostome.

In the early years of the palaeontology was this fossil described as a “unusual flat fish” from the small village Llandeilo in south Wales.  This sympatric misinterpretation provides
reverend Edward Lhwyd still some fame in the world of palaeontology.

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