Trochiliscaceae

Trochiliscaceae is a family of fossil charophyte green algae.^[1] It is the only member of the order Trochiliscales.^[2] The reproductive structures in Trochiliscaceae (and families placed in Sycidiales by AlgaeBase) have a calcified cover, called a utricle, that is thought to prevent the zygote being desiccated. Other Paleozoic families lack this cover, as do modern charophytes. Fossils of Trochiliscaceae are from the Devonian.^[3]

Trochiliscaceae Temporal range: Devonian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Plantae
Division:	Charophyta
Class:	Charophyceae
Order:	†Trochiliscales
Family:	†Trochiliscaceae
Genera
See text.

Genera

As of February 2022^[update], AlgaeBase accepted the following genera.^[1]

• †Karpinskya (Croft) Grambast – 2 species
• †Moellerina E.O.Ulrich – 3 species
• †Primochara T.A.Istchenko & Saidakovsky – 2 species
• †Trochiliscus Karpinsky – 7 species