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Huenella
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Pentamerida
Superfamily:
Porambonitoidea
Family:
Huenellidae
Formal Genus Name and Reference:
Huenella WALCOTT, 1908, p. 109
Type Species:
Syntrophia texana WALCOTT, 1905, p. 294, OD
Images
(Click to enlarge in a new window)
Fig. 624, 1a-f. *H. texana (Walcott), Upper Cambrian, USA, a, ventral valve exterior, Packsaddle Mountain, Texas, b, ventral valve exterior, Packsaddle Mountain, Texas, c, ventral sulcus, anterior view, Packsaddle Mountain, Texas, d, dorsal valve exterior, Packsaddle Mountain, Texas, e, hypotype, dorsal valve, lateral view, Packsaddle Mountain, Texas, USNM 52494, ×4 (new, photographs courtesy of Michael Bassett), f, ventral valve interior, pseudospondylium, Gallatin Valley, Wyoming, ×3 (Ulrich & Cooper, 1938)., Fig. 624, 1g. H. abnormis (Walcott), ?Upper Cambrian, Yellowstone National Park, Wyoming, USA, drawing of dorsal valve interior, ×2 (Walcott, 1912).
Synonyms
Geographic Distribution
USA, Canada, Siberia, China
Age Range
Beginning Stage in Treatise Usage:
Upper Cambrian (Dresbachian)
Beginning International Stage:
Guzhangian
Fraction Up In Beginning Stage:
50
Beginning Date:
498.75
Ending Stage in Treatise Usage:
Lower Ordovician (Tremadoc)
Ending International Stage:
Tremadocian
Fraction Up In Ending Stage:
100
Ending Date:
477.08
Description
Type species costate, pseudospondylium tending toward sessile spondylium in some, with the anterior edge supported by a broad, low ridge that widens anteriorly, cardinal process present in the type species, lacking in some others.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Pentamerida
Superfamily:
Porambonitoidea
Family:
Huenellidae
Formal Genus Name and Reference:
Huenella WALCOTT, 1908, p. 109
Type Species:
Syntrophia texana WALCOTT, 1905, p. 294, OD
Images
(Click to enlarge in a new window)
Fig. 624, 1a-f. *H. texana (Walcott), Upper Cambrian, USA, a, ventral valve exterior, Packsaddle Mountain, Texas, b, ventral valve exterior, Packsaddle Mountain, Texas, c, ventral sulcus, anterior view, Packsaddle Mountain, Texas, d, dorsal valve exterior, Packsaddle Mountain, Texas, e, hypotype, dorsal valve, lateral view, Packsaddle Mountain, Texas, USNM 52494, ×4 (new, photographs courtesy of Michael Bassett), f, ventral valve interior, pseudospondylium, Gallatin Valley, Wyoming, ×3 (Ulrich & Cooper, 1938)., Fig. 624, 1g. H. abnormis (Walcott), ?Upper Cambrian, Yellowstone National Park, Wyoming, USA, drawing of dorsal valve interior, ×2 (Walcott, 1912).
Synonyms
Geographic Distribution
USA, Canada, Siberia, China
Age Range
Beginning Stage in Treatise Usage:
Upper Cambrian (Dresbachian)
Beginning International Stage:
Guzhangian
Fraction Up In Beginning Stage:
50
Beginning Date:
498.75
Ending Stage in Treatise Usage:
Lower Ordovician (Tremadoc)
Ending International Stage:
Tremadocian
Fraction Up In Ending Stage:
100
Ending Date:
477.08
Description
Type species costate, pseudospondylium tending toward sessile spondylium in some, with the anterior edge supported by a broad, low ridge that widens anteriorly, cardinal process present in the type species, lacking in some others.