Hyolithes d'Eichwald 1840

Hyolitha - Hyolithida - Hyolithidae

Alternative spellings: Hyolithis, Hyolithus

Synonym: Theca Morris 1845

Full reference: E. d'Eichwald. 1840. Ueber das silurische Schichtensystem in Esthland. Aus dem ersten and zweiten Hefte der Zeithschrift für Natur und Heilkunde der medizinischen Akademi zu St. Petersburg besonders abgedruckt 1-210

Parent taxon: Hyolithidae according to G. Henningsmoen 1952

See also Fisher 1962, Landing and Bartowski 1996, Mason 1935, Sepkoski 2002 and Yochelson and Saunders 1967

Sister taxa: Hallotheca, Haplophrentis, Helenia, Korilithes, Nevadotheca, Novakotheca, Sololites, Yalarrnga

Subtaxa: Hyolithes (Pharetrella) Hyolithes aclis Hyolithes acutus Hyolithes aliger Hyolithes americanus Hyolithes amosi Hyolithes aplatus Hyolithes asteroideus Hyolithes cariniferus Hyolithes columbanus Hyolithes conularioides Hyolithes daphnis Hyolithes delia Hyolithes dorbignyi Hyolithes endoi Hyolithes fuchouensis Hyolithes gibbosus Hyolithes girvanensis Hyolithes hathewayi Hyolithes immemor Hyolithes kuantungensis Hyolithes mantouensis Hyolithes minutissimus Hyolithes multicinctus Hyolithes multipunctatus Hyolithes obesus Hyolithes ornatellus Hyolithes paishanensis Hyolithes penkillensis Hyolithes sondai Hyolithes tenuis Hyolithus (Hyolithus) Hyolithus mimicus Hyolithus pallidus Theca kirkbyi Theca richteri

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Type: Hyolithes acutus

Ecology: facultatively mobile epifaunal suspension feeder


• Permian of Australia (1 collection), Madagascar (1)

• Carboniferous of Argentina (4), Australia (2), United States (3: Indiana, Virginia)

• Devonian of Australia (7), Brazil (8), Canada (1: Quebec), Ghana (1), Morocco (1), South Africa (6), Spain (1), United States (18: Illinois, New York, Pennsylvania)

• Silurian of Australia (5), Canada (2: Nova Scotia), Paraguay (1), Poland (1), the United Kingdom (18), United States (1: Tennessee)

• Ordovician of Argentina (2), Canada (2: Nunavut, Ontario), China (1), the Czech Republic (7), France (1), Sweden (11), the United Kingdom (11), United States (7: Iowa, Missouri, New York, Ohio, Pennsylvania)

• Whiterockian of United States (1: Nevada)

• Klabava of the Czech Republic (1)

• Arenig of Canada (1: Yukon)

• Marjumian of United States (5: Arizona, Utah)

• Cambrian of Antarctica (1), Argentina (3), Australia (21), Canada (28: British Columbia, New Brunswick, Newfoundland, Northwest Territories, Nova Scotia, Nunavut, Quebec, Yukon and Northwest Territories), China (3), the Czech Republic (3), Denmark (1), Mexico (3), Norway (5), Sweden (6), the United Kingdom (4), United States (55: Arizona, California, Idaho, Idaho/ Utah, Indiana, Maryland, Massachusetts, Montana, Nevada, New York, Pennsylvania, South Dakota, Utah, Vermont, Wisconsin, Wyoming, Wyoming-Montana)

Total: 265 collections including 309 occurrences

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Specimen images are retrieved through the ePANDDA API.

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