''Abdounia minutissima'' is an extinct species of

requiem shark Requiem sharks are sharks of the family Carcharhinidae in the order Carcharhiniformes. They are migratory, live-bearing sharks of warm seas (sometimes of brackish or fresh water) and include such species as the tiger shark, bull shark, le ...

from the

Eocene Epoch The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn ...

. It is known from isolated teeth in England, Belgium and possibly the Chespeake Bay region of the eastern United States.

References

Carcharhinidae Prehistoric sharks Fossil taxa described in 1873 {{shark-stub