Ulrichotrypella omanica Ernst, Weidlich and Schäfer, 2008

Ernst, Andrej, 2016, Bryozoan fauna from the Permian (Artinskian-Kungurian) Zhongba Formation of southwestern Tibet, Palaeontologia Electronica (1946) 51 (9), pp. 1-59 : 25

publication ID

https://doi.org/ 10.26879/585

publication LSID

lsid:zoobank.org:pub:6F0DE44D-32BD-4882-9C38-FF76446D15EA

persistent identifier

https://treatment.plazi.org/id/2F15F14D-FF88-FF82-05A8-A82FFC3AFC77

treatment provided by

Felipe

scientific name

Ulrichotrypella omanica Ernst, Weidlich and Schäfer, 2008
status

 

Ulrichotrypella omanica Ernst, Weidlich and Schäfer, 2008 View in CoL

Figures 11.7-8 View FIGURE 11 , 12.1 View FIGURE 12 ; Table 14

2008 Ulrichotrypella omanica Ernst, Weidlich and Schäfer , p. 686, figs. 5.12-17.

Material. SMF 23.238– SMF 23.242.

Description. Ramose colony, 2.2 mm in diameter, with 0.65 mm wide exozone and 0.9 mm wide endozone. Thin complete diaphragms in autozooecia constricted to exozone. Autozooecial apertures rounded to angular. Exilazooecia few, having a rounded to polygonal transverse section, restricted to the exozone, 0.09–0.12 mm in diameter. Abundant aktinotostyles in the walls of the exozone, originating from transitional zone between endozone and exozone. Acanthostyles absent. Walls granular-prismatic, 0.03–0.04 mm thick in the endozone; laminated, regularly thickened, 0.07– 0.15 mm thick in exozone.

Remarks. Ulrichotrypella omanica Ernst et al., 2008 differs from U. prima Romantchuk, 1967 in having larger apertures (0.21–0.38 mm vs. 0.20– 0.29 mm in U. prima ) and less abundant exilazooecia.

Occurrence. Aseelah Unit, Saal Formation, Lower–?Middle Permian; Batain Coast (eastern Oman). Zhongba Formation, Permian (upper Cisuralian–Guadalupian); Zhongba area of southwestern Tibet.

SMF

Forschungsinstitut und Natur-Museum Senckenberg

Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF