AnimaliaNot EvaluatedacceptedspeciesAccepted
Rhombocladia delicata
Rogers, 1900
GBIF:226325032
0year
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Descriptions(4)
Description. Ramose colonies, branches 0.74 – 1.07 mm wide, 0.40 - 0.50 mm deep, flattened, bearing 5 – 6 zooecial rows; dorsal wall rugose. Diaphragms not observed. Superior hemisepta present. Oval apertures arranged in a diagonal pattern. Autozooecial chambers rhombic in mid-tangential section. Single macroacanthostyle at the distal end of each autozooecial aperture present. Microacanthostyles arranged in few irregular rows between autozooecial apertures, 0.008 – 0.013 mm in diameter. Leptozooecia not observed in present material. Autozooecial walls in endozone 0.015 – 0.020 mm thick, hyaline; finely laminated in exozone.
Ernst, Andrej, Claussen, Anna Lene, Seuss, Barbara, Wyse Jackson, Patrick N. (2022): Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA. Palaeontologia Electronica (a 15) 25 (2): 1-56, DOI: 10.26879/1174, URL: http://dx.doi.org/10.26879/1174
Figures 8 H-I, 9 A-B; Appendix 1900 Rhombocladia delicata Rogers, p. 12, pl. 1, figs. 1 - 1 d. pars 1906 Rhombocladia delicata Rogers, 1900; Johnsen, p. 58, pl. 11, fig. 30 a [? non 30 b]. pars 1929 Rhombocladia delicata Rogers, 1900; Moore, p. 149, pl. 17, figs. 26 - 28, 30, 31 [non 29, 32]. 1930 Rhombocladia delicata Rogers, 1900; Warthin, p. 42, pl. 3, fig. 17. 1963 Rhombocladia delicata Rogers form A; Ceretti, p. 327, pl. 7, fig. 10. 1964 Rhombocladia delicata Rogers; Ceretti, p. 184, 185, pl. 33, fig. 2 a, b, 4 a, b. 2003 Rhombocladia delicata Rogers, 1900; Ernst, p. 63, 64, pl. 5, figs. 4 - 7; text-fig. 3. 2016 Rhombocladia delicata Rogers, 1900; Ernst et al., p. 530, figs. 6 b-f, 8 a, d, 9 a. 2021 Rhombocladia delicata Rogers, 1900; Ernst, Krainer, and Lucas, p. 228, figs. 7 d-h.
Ernst, Andrej, Claussen, Anna Lene, Seuss, Barbara, Wyse Jackson, Patrick N. (2022): Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA. Palaeontologia Electronica (a 15) 25 (2): 1-56, DOI: 10.26879/1174, URL: http://dx.doi.org/10.26879/1174
Remarks. Rhombocladia delicata Rogers, 1900, differs from R. coronata Schulga-Nesterenko, 1955, from the Moscovian of Russian Platform by presence of macroacanthostyles. It differs from R. carnica Ceretti, 1964, from the Pennsylvanian (lower Gzhelian) of Italy by having wider branches (0.74 – 1.07 mm vs. 0.63 – 0.96 mm). Occurrence. Carboniferous, Pennsylvanian; Kansas, USA. Carboniferous, Middle Pennsylvanian (Wewoka Formation); Oklahoma, USA. Carboniferous, Pennsylvanian, Corona Formation (early Gzhelian); Kron Alpe (Monte Corona), Carnic Alps (Austria). Carboniferous, Pennsylvanian, Auernig Formation (Lower Gzhelian); Auernig, Carnic Alps (Udine, Italy). Strata probably attributable to the Las Llacerias Formation, Pennsylvanian (Kasimovian); Cantabrian Mountains, Asturias, NW Spain. Carboniferous, Pennsylvanian, Missourian (Kasimovian), Deese Group, Boggy Formation; Buckhorn Asphalt Quarry near Sulphur, Oklahoma, USA. Gray Mesa Formation, Pennsylvanian (Desmoinesian); Fra Cristobal Mountains, New Mexico, USA. Graham Formation, Pennsylvanian (Virgilian); TXV- 200 (“ Spillway section at Lost Creek Lake ”), Texas, USA.
Ernst, Andrej, Claussen, Anna Lene, Seuss, Barbara, Wyse Jackson, Patrick N. (2022): Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA. Palaeontologia Electronica (a 15) 25 (2): 1-56, DOI: 10.26879/1174, URL: http://dx.doi.org/10.26879/1174
Material. SNSB-BSPG 2020 XCI 22 a-c, SNSB-BSPG 2020 XCI 105.
Ernst, Andrej, Claussen, Anna Lene, Seuss, Barbara, Wyse Jackson, Patrick N. (2022): Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA. Palaeontologia Electronica (a 15) 25 (2): 1-56, DOI: 10.26879/1174, URL: http://dx.doi.org/10.26879/1174
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FIGURE 8. Rhombopora lepidodendroides Meek, 1872 (A–C): A – branch transverse section (XCI 58a); B, C – branch longitudinal section showing autozooecial chambers and aktinotostyles in autozooecial wall (XCI 45b). Streblotrypa (Streblotrypa) multipora Warthin, 1930 (D–G): D, E – branch fragment showing autozooecial apertures and metazooecia (XCI 104); F – branch transverse section showing autozooecial chambers and axial bundle (XCI 39b); G – branch longitudinal section showing branch transverse section showing autozooecial chambers with hemisepta (arrows) and axial bundle (XCI 40). Rhombocladia delicata Rogers, 1900 (XCI 105) (H–I) – branch fragment (H) and colony surface showing autozooecial apertures, acanthostyles and paurostyles (I).
Imageimage/png© Ernst, Andrej;Claussen, Anna Lene;Seuss, Barbara;Wyse Jackson, Patrick N.Ernst, Andrej;Claussen, Anna Lene;Seuss, Barbara;Wyse Jackson, Patrick N.
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