Rhombocladia delicata Rogers 1900
Creators: name: Ernst, Andrej
name: Claussen, Anna Lene
name: Seuss, Barbara
name: Wyse Jackson, Patrick N.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Bryozoa
Stenolaemata
Fenestrida
Chainodictyonidae
Rhombocladia
Rhombocladia delicata

description: Rhombocladia delicata Rogers, 1900
Figures 8 H-I, 9A-B; Appendix
1900 Rhombocladia delicata Rogers, p. 12, pl. 1, figs. 1-1d.
pars 1906 Rhombocladia delicata Rogers, 1900; Johnsen, p. 58, pl. 11, fig. 30a [? non 30b].
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. 2a, b, 4a, 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. 6b-f, 8a, d, 9a.
2021 Rhombocladia delicata Rogers, 1900; Ernst, Krainer, and Lucas, p. 228, figs.
7d-h.
Material. SNSB-BSPG 2020 XCI 22a-c, SNSB-BSPG 2020 XCI 105.
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.
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.
description: Published as part of 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, pp. 1-56 in Palaeontologia Electronica (a 15) (a 15) 25 (2) on pages 16-18, DOI: 10.26879/1174, http://zenodo.org/record/11032471