Leioclema Ulrich 1882

Genus Leioclema Ulrich, 1882 TYPE SPECIES. — Callopora punctata Hall, 1858, by subsequent designation (Ulrich 1882). Lower Carboniferous; Iowa (USA). OCCURRENCE. — Lower Silurian to Upper Carboniferous; worldwide. DIAGNOSIS. — Encrusting,branched, less commonly massive colonies.Autozooecia with polygonal to rounded-polygonal, sometimes petaloid apertures. Autozooecial diaphragms rare. Mesozooecia abundant, with abundant diaphragms, often beaded. Acanthostyles abundant, commonly large. Autozooecial walls thin in endozone; laminated, regularly thickened in exozones (modified from Astrova 1978). COMPARISON Leioclema Ulrich, 1882 differs from Heterotrypa Nicholson, 1879 in having rare autozooecial diaphragms and abundant acanthostyles and mesozooecia, and from Stigmatella Ulrich& Bassler, 1904 in having abundant mesozooecia.Published as part of Ernst, Andrej, Fernández, Luis Pedro, Fernández-Martínez, Esperanza & Vera, Carmen, 2012, Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain), pp. 693-738 in Geodiversitas 34 (4) on page 710, DOI: 10.5252/g2012n4a1, http://zenodo.org/record/538089