Graphoceratidae
# Graphoceratidae

Graphoceratidae is an extinct family of ammonites in the order Ammonitida, which lived during the Jurassic.

## Distribution

Fossils are found in the Jurassic marine strata of Canada, France, Germany, Hungary, Italy, Morocco, Saudi Arabia, Spain and the United Kingdom.

## Genera

Subfamily Graphoceratinae Buckman, 1905

* Brasilia
* Graphoceras
* Hyperlioceras
* Ludwigia

Subfamily Leioceratinae Spath, 1936

* Canavarella
* Costileioceras
* Vaceckia
* Leioceras
* Staufenia
* Ancolioceras

Subfamily Dumortieriinae Haug, 1885

* Dumortieria
* Pleydellia
* Catulloceras
* Cotteswoldia
* Walkericeras
* Canavarina
* Paradumortieria

Subfamily Tmetoceratinae Spath, 1936

* Tmetoceras
