Full reference: L. Marek. 1966. New hyolithid genera from the Ordovician of Bohemia. Casopis Narodního Musea, oddíl prírodovedny 135:89-92
Parent taxon: Hyolitha according to A. Kouchinsky et al. 2011
See also Azmi and Pancholi 1983, Kouchinsky et al. 2017, Malinky and Racheboeuf 2011 and Sepkoski 2002
Sister taxa: Attenuella, Hyolithida, Hyolithomorpha, Orthothecimorpha, Toxeumorphorida
Subtaxa: Aldanothecidae Allathecidae Ancheilotheca Bolitheca Brevitheca Bucanotheca Carinitheca Chelsonella Circothecidae Cupitheca Curtitheca Ebianotheca Eogloborilus Eonovitatus Girvanolithes Gracilithecidae Grandicornus Hexitheca Inflaticornus Isititheca Khetatheca Kotuyitheca Lophotheca Minitheca Mooritheca Neobactrotheca Nikatheca Novitatidae Orthothecidae Panitheca Paragloborilus Petasotheca Plicitheca Probactrotheca Renitheca Sysoievia Tchuranitheca Tetratheca Tetrathecidae Triplicatellidae Turcutheca
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Australia (1 collection), Czechia (2), Germany (1), Morocco (9), South Africa (5), United States (1: Pennsylvania)
• Silurian of Australia (1), Czechia (1)
• Dobrotivian of Czechia (1)
• Arenig of Argentina (1)
• Ordovician of Argentina (1), China (2), Czechia (3), France (2), Morocco (3), Poland (1), Spain (1), Sweden (3), the United Kingdom (11)
• Cambrian of Antarctica (2), Australia (66), Canada (21: New Brunswick, Newfoundland and Labrador, Nova Scotia, Quebec), China (175), France (3), Germany (8), Greenland (29), India (5), Iran (3), Kazakhstan (10), Kyrgyzstan (1), Mexico (3), Mongolia (2), Morocco (1), the Russian Federation (80), Spain (1), Sweden (2), Türkiye (1), the United Kingdom (7), United States (16: Idaho, Massachusetts, Montana, New York, Pennsylvania, Texas, Vermont)
• Templetonian of Australia (14)
• Amgan of Norway (1), the Russian Federation (2)
• Solvan of Morocco (1), the Russian Federation (1), Sweden (3)
• Placentian of Canada (2: Newfoundland and Labrador, Nova Scotia), United States (4: Massachusetts)
• Caerfai of Canada (1: Nunavut)
• Ediacaran of Mexico (1)
Total: 516 collections including 1019 occurrences