Field guide No. 1457

An open hardback on a red floor whose right-hand pages are bands of rock with an ammonite pressed in. Very long reading.

Library book reveals ancient geological strata

Overdue by several epochs.

An open hardback on a red floor whose right-hand pages are bands of rock with an ammonite pressed in. Very long reading.

Field notePages turn and rock layers don’t, yet the right-hand half of this book is both at once.

Specimen
No. 1457
Kind
Impossible (the round square kind)
Where it doesn’t exist
A red-tiled reading room with a returns trolley.
Nearest existing relative
A sediment core.
Filed in Fresh slop as
Objects

Also impossible, also breaking category