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Araneosustroma
Classification
Phylum:
Porifera
Class:
Stromatoporoidea
Order:
Actinostromatida
Family:
Densastromatidae
Formal Genus Name and Reference:
Araneosustroma LESSOVAYA, 1970, p. 80
Type Species:
* A. fistulosum LESSOVAYA, 1970, p. 81, OD
Images
(Click to enlarge in a new window)
Fig. 433, 3a-b. *A. fistulosum, holotype, Bursykhirman Horizon, Lochkovian, Uzbekistan, GMU 9994-6/149, a, longitudinal section, b, tangential section, X20 (Stock, 2012, courtesy of Heldur Nestor).
Synonyms
Petschorostroma
Geographic Distribution
Estonia, Russia (Novaya Zemlya), Sweden (Gotland), Ukraine (Podolia), Wenlock; Estonia, Russia (Novaya Zemlya, Urals), Sweden (Gotland), Ukraine (Podolia), Ludlow; Ukraine (Podolia), Pridoli; Uzbekistan, Loch kovian
Age Range
Beginning Stage in Treatise Usage:
middle Silurian (Wenlock)
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
Lower Devonian (Lochkovian)
Ending International Stage:
Lochkovian
Fraction Up In Ending Stage:
100
Ending Date:
412.4
Description
Microreticulate structure orthoreticular to acosmoreticular, in some species combined with microlaminae, microcolliculi horizontally aligned at some levels, not aligned at other levels, in some species, micropillars clustered into indistinct, narrow subcolumns, giving impression of closely packed microreticulate pillars
References
Lessovaja [Lessovaya], A. I. 1970. Stromatoporoidei devona Zeravshanskogo khrebta [Stromatoporoids of the Zeravshan Range]. In T. S. Shayakubov, ed., Biostratigrafiya osadochnykh obrazovanii Uzbekistana [Biostratigraphy of the sedimentary formations of Uzbekistan]. Ministerstvo Geologii, Uzbek SSR 9:74-100.
Museum or Author Information
Classification
Phylum:
Porifera
Class:
Stromatoporoidea
Order:
Actinostromatida
Family:
Densastromatidae
Formal Genus Name and Reference:
Araneosustroma LESSOVAYA, 1970, p. 80
Type Species:
* A. fistulosum LESSOVAYA, 1970, p. 81, OD
Images
(Click to enlarge in a new window)
Fig. 433, 3a-b. *A. fistulosum, holotype, Bursykhirman Horizon, Lochkovian, Uzbekistan, GMU 9994-6/149, a, longitudinal section, b, tangential section, X20 (Stock, 2012, courtesy of Heldur Nestor).
Synonyms
Petschorostroma
Geographic Distribution
Estonia, Russia (Novaya Zemlya), Sweden (Gotland), Ukraine (Podolia), Wenlock; Estonia, Russia (Novaya Zemlya, Urals), Sweden (Gotland), Ukraine (Podolia), Ludlow; Ukraine (Podolia), Pridoli; Uzbekistan, Loch kovian
Age Range
Beginning Stage in Treatise Usage:
middle Silurian (Wenlock)
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
Lower Devonian (Lochkovian)
Ending International Stage:
Lochkovian
Fraction Up In Ending Stage:
100
Ending Date:
412.4
Description
Microreticulate structure orthoreticular to acosmoreticular, in some species combined with microlaminae, microcolliculi horizontally aligned at some levels, not aligned at other levels, in some species, micropillars clustered into indistinct, narrow subcolumns, giving impression of closely packed microreticulate pillars
References
Lessovaja [Lessovaya], A. I. 1970. Stromatoporoidei devona Zeravshanskogo khrebta [Stromatoporoids of the Zeravshan Range]. In T. S. Shayakubov, ed., Biostratigrafiya osadochnykh obrazovanii Uzbekistana [Biostratigraphy of the sedimentary formations of Uzbekistan]. Ministerstvo Geologii, Uzbek SSR 9:74-100.