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Ethmophyllum
Classification
Phylum:
Porifera
Class:
Archaeocyatha
Order:
Ajacicyathida
Superfamily:
Ethmophylloidea
Family:
Ethmophyllidae
Formal Genus Name and Reference:
Ethmophyllum МЕЕК, 1868a, p. 64
Type Species:
E. whitneyi, OD, lectotype, Окulitch, 1943, pl. 3, 15, Hill, 1965, pl. 4, 1, SD Окulitch, 1943, p. 66, USNM 15307 1, 1b, thin sections A, Washington, D.C.
Images
(Click to enlarge in a new window)
Fig. 568, 1 a-c. * E. whitneyi, Poleta Formation, Botoman, Silver Peak, Nevada, United States, a-b, lectotype, USNM 15307 1, 1b, thin sections A, a, longitudinal section, X5, b, transverse section, X5, c, topotype, MCZ 9314, detail of septum in longitudinal section (outer wall to left), X9 (Debrenne, Zhuravlev, & Kruse, 2002).
Synonyms
Geographic Distribution
Canada, United States
Age Range
Beginning Stage in Treatise Usage:
lower Cambrian (Atdabanian 4)
Beginning International Stage:
Cambrian Stage 3
Fraction Up In Beginning Stage:
56
Beginning Date:
517.36
Ending Stage in Treatise Usage:
lower Cambrian (Botomian 2)
Ending International Stage:
Cambrian Stage 4
Fraction Up In Ending Stage:
0
Ending Date:
514.5
Description
Outer wall with subspherical, chambered canals, each with base commencing in intervallum, canals subdivided by stipules (imparting overall inverted V-shaped appearance to outer wall), inner wall with one row of anastomosing, horizontal to upwardly and laterally projecting, waved canals per intersept, arising from fluted inner edges of septa, septa aporose to sparsely porous.
References
Museum or Author Information
Classification
Phylum:
Porifera
Class:
Archaeocyatha
Order:
Ajacicyathida
Superfamily:
Ethmophylloidea
Family:
Ethmophyllidae
Formal Genus Name and Reference:
Ethmophyllum МЕЕК, 1868a, p. 64
Type Species:
E. whitneyi, OD, lectotype, Окulitch, 1943, pl. 3, 15, Hill, 1965, pl. 4, 1, SD Окulitch, 1943, p. 66, USNM 15307 1, 1b, thin sections A, Washington, D.C.
Images
(Click to enlarge in a new window)
Fig. 568, 1 a-c. * E. whitneyi, Poleta Formation, Botoman, Silver Peak, Nevada, United States, a-b, lectotype, USNM 15307 1, 1b, thin sections A, a, longitudinal section, X5, b, transverse section, X5, c, topotype, MCZ 9314, detail of septum in longitudinal section (outer wall to left), X9 (Debrenne, Zhuravlev, & Kruse, 2002).
Synonyms
Geographic Distribution
Canada, United States
Age Range
Beginning Stage in Treatise Usage:
lower Cambrian (Atdabanian 4)
Beginning International Stage:
Cambrian Stage 3
Fraction Up In Beginning Stage:
56
Beginning Date:
517.36
Ending Stage in Treatise Usage:
lower Cambrian (Botomian 2)
Ending International Stage:
Cambrian Stage 4
Fraction Up In Ending Stage:
0
Ending Date:
514.5
Description
Outer wall with subspherical, chambered canals, each with base commencing in intervallum, canals subdivided by stipules (imparting overall inverted V-shaped appearance to outer wall), inner wall with one row of anastomosing, horizontal to upwardly and laterally projecting, waved canals per intersept, arising from fluted inner edges of septa, septa aporose to sparsely porous.