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Rosenella
Classification
Phylum:
Porifera
Class:
Stromatoporoidea
Order:
Labechiida
Superfamily:
Unknown
Family:
Rosenellidae
Formal Genus Name and Reference:
Rosenella NICHOLSON, 1886a, p. 84
Type Species:
R. macrocystis Nicholson, 1886a, p. 84, pl. 7, 12-13, OD, NICHOLSON, 1886c, p. 20, pl. 1, 8; Nicholson, 1886a, included a description of the genus and figures and the name of the species, without description (the type species is illustrated in both papers). The figures are not photos but lithographs prepared on stone, based on Nicholson’s accurate original drawings. The figures of R. macrocystis in Nicholson (1886a) included longitudinal and tangential views of the type, and the figure in Nicholson (1886c) included another longitudinal section from a slightly different aspect
Images
(Click to enlarge in a new window)
Fig. 387, 1a-c. *R. macrocystis, Wenlock limestone, Visby, Gotland (specimen collected by G. J. Hinde, precise locality and stratigraphic level unknown), holotype, NHM P.5490, Nicholson's slides no. 280, 280a-d, a, longitudinal section of slide 280 showing long, low cyst plates with small denticles on their tops, especially thicker cyst plates, X5, b, tangential section of slide 280 d showing tiny, darkcolored, solid, dot-shaped denticles (best seen in lighter-colored areas where spar-filled gallery spaces are preserved), whereas a few denticles preserved as darker rings with lighter centers (near center of figure) and, in darkest areas (lower part of figure), equivalent, dot-shaped, lighter colored, replacement structures (voids or hollow denticles) are represented within an intersected, thick, cyst plate, X10, c, tangential section of slide 280a shows many finely preserved, darker, dot-shaped denticles, X10 (Webby, 2012c; photos of Nicholson's slides 280,
280a–280d, rephotographed by Webby in 1989).
Synonyms
Geographic Distribution
China (Anhui, Shandong), Malaysia, Darriwilian; Australia (New South Wales, Tasmania), China, Mongolia, Russia (Gornaya Shoriya), USA (New York), Sandbian–Katian; China (Guizhou), Estonia, lower Silurian; Australia (New South Wales), Canada (Ontario), Sweden (Gotland), Russia (Tuva), Wenlock; Ukraine (Podolia), upper Silurian; Australia (northern Queensland), Lower Devonian–Middle Devonian
(lower Eifelian); China (Sichuan), Russia (Urals, Kuznetsk Basin, Vaigach Island, Pay Khoy), Ukraine (Donets Basin), Vietnam, Upper Devonian.
Age Range
Beginning Stage in Treatise Usage:
Middle Ordovician (Darriwilian)
Beginning International Stage:
Darriwilian
Fraction Up In Beginning Stage:
0
Beginning Date:
469.42
Ending Stage in Treatise Usage:
Upper Devonian
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
100
Ending Date:
359.3
Description
Skeleton commonly composed of large-sized, overlapping, gently convex-upward cyst plates, in a few places alternating with flatter, thickened bands, with or without denticles.
References
Nicholson, H. A. 1886a. A Monograph of the British Stromatoporoids. Part I, General Introduction, vol. 39. Palaeontographical Society. London. p. 1-130, fig. 1-17, pl. 1-11.
Museum or Author Information
Classification
Phylum:
Porifera
Class:
Stromatoporoidea
Order:
Labechiida
Superfamily:
Unknown
Family:
Rosenellidae
Formal Genus Name and Reference:
Rosenella NICHOLSON, 1886a, p. 84
Type Species:
R. macrocystis Nicholson, 1886a, p. 84, pl. 7, 12-13, OD, NICHOLSON, 1886c, p. 20, pl. 1, 8; Nicholson, 1886a, included a description of the genus and figures and the name of the species, without description (the type species is illustrated in both papers). The figures are not photos but lithographs prepared on stone, based on Nicholson’s accurate original drawings. The figures of R. macrocystis in Nicholson (1886a) included longitudinal and tangential views of the type, and the figure in Nicholson (1886c) included another longitudinal section from a slightly different aspect
Images
(Click to enlarge in a new window)
Fig. 387, 1a-c. *R. macrocystis, Wenlock limestone, Visby, Gotland (specimen collected by G. J. Hinde, precise locality and stratigraphic level unknown), holotype, NHM P.5490, Nicholson's slides no. 280, 280a-d, a, longitudinal section of slide 280 showing long, low cyst plates with small denticles on their tops, especially thicker cyst plates, X5, b, tangential section of slide 280 d showing tiny, darkcolored, solid, dot-shaped denticles (best seen in lighter-colored areas where spar-filled gallery spaces are preserved), whereas a few denticles preserved as darker rings with lighter centers (near center of figure) and, in darkest areas (lower part of figure), equivalent, dot-shaped, lighter colored, replacement structures (voids or hollow denticles) are represented within an intersected, thick, cyst plate, X10, c, tangential section of slide 280a shows many finely preserved, darker, dot-shaped denticles, X10 (Webby, 2012c; photos of Nicholson's slides 280,
280a–280d, rephotographed by Webby in 1989).
Synonyms
Geographic Distribution
China (Anhui, Shandong), Malaysia, Darriwilian; Australia (New South Wales, Tasmania), China, Mongolia, Russia (Gornaya Shoriya), USA (New York), Sandbian–Katian; China (Guizhou), Estonia, lower Silurian; Australia (New South Wales), Canada (Ontario), Sweden (Gotland), Russia (Tuva), Wenlock; Ukraine (Podolia), upper Silurian; Australia (northern Queensland), Lower Devonian–Middle Devonian
(lower Eifelian); China (Sichuan), Russia (Urals, Kuznetsk Basin, Vaigach Island, Pay Khoy), Ukraine (Donets Basin), Vietnam, Upper Devonian.
Age Range
Beginning Stage in Treatise Usage:
Middle Ordovician (Darriwilian)
Beginning International Stage:
Darriwilian
Fraction Up In Beginning Stage:
0
Beginning Date:
469.42
Ending Stage in Treatise Usage:
Upper Devonian
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
100
Ending Date:
359.3
Description
Skeleton commonly composed of large-sized, overlapping, gently convex-upward cyst plates, in a few places alternating with flatter, thickened bands, with or without denticles.
References
Nicholson, H. A. 1886a. A Monograph of the British Stromatoporoids. Part I, General Introduction, vol. 39. Palaeontographical Society. London. p. 1-130, fig. 1-17, pl. 1-11.