Hedenstroemiidae

Hedenstroemiidae is an extinct family of cephalopods in the ammonoid order Ceratitida. They were nektonic carnivores.^[1]

Hedenstroemiidae Temporal range: Triassic (Olenekian), 252.3–242.0 Ma PreꞒ Ꞓ O S D C P T J K Pg N [1]
Fossil shell of Hedenstroemia tscherskii from Madagascar, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ceratitida
Superfamily:	†Sageceratoidea
Family:	†Hedenstroemiidae Waagen, 1895

Genera

• Clypites Waagen 1895
• Cordillerites Hyatt and Smith 1905
• Hedenstroemia Waagen 1895
• Mesohedenstroemia Chao 1959
• Parahedenstroemia Spath 1934
• Pseudohedenstroemia
• Pseudosageceras Diener 1895
• Tellerites Mojsisovics 1902 ^[1]

Distribution

Fossils of species within this family have been found in the Triassic of Afghanistan, Canada, Oman, Pakistan, Russia and United States.^[1]