First record of sabellid and serpulid polychaetes from the Permian of Sicily Author Sanfilippo, Rossana Author Rosso, Antonietta Author Reitano, Agatino Author Insacco, Gianni text Acta Palaeontologica Polonica 2017 2016-09-30 62 1 25 38 http://dx.doi.org/10.4202/app.00288.2016 journal article 10.4202/app.00288.2016 1732-2421 10626435 Glomerula gemmellaroi sp. nov. Fig. 2D–F . Etymology : Named after Professor Gaetano Giorgio Gemmellaro (1832–1904), who discovered and first studied the Permian fossiliferous limestone rocks of the Sosio Valley. Type material : Holotype : single tube curved at different angles attached for all of its length on a sponge ( MSNC4519 ) . Paratypes : single slightly curved incomplete tubes: two on sponges ( MSNC 4520 , MSNC 4521 ), one on a stromatoporoid ( MSNC 4522 ), and one on a brachiopod shell ( MSNC 4523 ). All specimens come from the “ Pietra di Salomone ” megablock, except for specimen MSNC 4522 originating from the “ Rupe di San Calogero ” mebablock . Fig. 3. Serpulid Filograna sp. from the Sosio Valley, western Sicily (Italy), Wordian to upper Permian. A . MSNC 4524, set of subparallel tubes on a sponge. Photograph (A 1 ), SEM image showing a Y bifurcation of a tube (A 2 ). B . MSNC 4525, slightly curved tubes on a sponge. Type locality : Sosio Valley , western Sicily ( Italy ) . Type horizon : “Pietra di Salomone” Limestone, Wordian to upper Permian. Diagnosis .—Tube long in respect to its width, circular in cross-section and smooth, increasing in diameter slowly. Base of the tube not widened by a basal cementing flange. Tubes more or less irregularly curved, but never forming spirals or knots. Description .—Tubes small-sized (outer diameter of 0.2–0.25 mm ), the outer surface smooth, only at places marked by feeble growth lines. Tubes are weakly attached to the substrate for all their length, isolated and irregularly curved, sometimes forming close meanders angled more typically at 90° and 180°. Aggregates of aligned to irregularly coiled tubes also occur. An obvious recrystallization affects the specimens, their original tube wall structure being totally biased. Remarks .—The present species has been assigned to Glomerula because of its small-sized smooth tubes, circular in cross-section and slowly increasing in diameter, and the general development included in the generic diagnosis. The particular meandering and the bending angles clearly differentiate these tubes from those of G. testatrix in the studied collection, and from other species in the genus. Stratigraphic and geographic range .—Wordian to upper Permian of Italy .