†family Archaeolithophyllaceae Chuvashov 1987 (red algae)
Florideophyceae - Cryptonemiales - Archaeolithophyllaceae
Parent taxon: Cryptonemiales according to D. Vachard and M. Aretz 2004
Sister taxa: Paleopikea, Paleosiphonia
Subtaxa: Archaeolithophyllum Hortonella Neoprincipia Petschoria Principia
Ecology: stationary epifaunal "photoautotroph"
Distribution:
• Cretaceous of India (1 collection)
• Permian of Canada (1: Nunavut), Oman (1), United States (3: Idaho, New Mexico, Texas)
• Carboniferous of Austria (2), Canada (1: Nova Scotia), France (2), Germany (1), Ireland (4), Spain (10), Thailand (2), Türkiye (1), Ukraine (2), United States (18: Arkansas, Idaho, Iowa, Kansas, Missouri, New Mexico, Oklahoma, Texas)
Total: 49 collections each including a single occurrence