Late Carboniferous bryozoans from La Hermida, Spain
Author
Ernst, Andrej
Author
Minwegen, Elke
text
Acta Palaeontologica Polonica
2006
51
3
569
588
journal article
10.5281/zenodo.13652021
1732-2421
13652021
Saffordotaxis
cf.
yanagidae
Sakagami, 1964
Figs. 5N
,
6A
;
Table 10
.
cf. 1964
Saffordotaxis yanagidae
sp. nov.
;
Sakagami 1964: 299–301
,
pl. 45: 1–4.
Material
.—SMF 1740, 2154.
Description
.—Ramose branched colonies,
1.05–1.20 mm
in diameter. Autozooecia tubular, budding from the median axis in a spiral pattern. Apertures oval to petaloid due to indenting acanthostyles, arranged in regular diagonal rows, spaced 10 per
2 mm
distance. Rare diaphragms present. Heterozooecia absent. Actinotostylets common, spaced 4–6 around each aperture, having dark cores and laminated sheaths. Walls laminated, with dark median layer,
0.02 mm
thick in endozone and
0.06–0.08 mm
thick in exozone.
Discussion
.—The present material is very similar to
Saffordotaxis yanagidae
Sakagami, 1964
from the
Millerella yowarensis
Zone
of the Akiyoshi Limestone (top Serpukhovian) of
Japan
. The Japanese material differs slightly in having larger apertures (0.08–0.11
versus
0.07–0.10 mm
in present material), and thinner colonies (0.80–1.10
versus
1.05–1.20 mm
in present material).
Stratigraphic and geographic range
.—Picos de Europa Formation, Moscovian, Upper Carboniferous; La Hermida,
Spain
.?
Millerella yowarensis
Zone
of the Akiyoshi Limestone (top Serpukhovian), Upper Carboniferous;
Japan
.