Pyritonema villosa Wisshak 2017, isp. nov.

• Main Author: Wisshak, Max
• Format: Other/Unknown Material
• Language: unknown
• Published: 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Hexactinellida; Lyssacinosida; Pyritonema; Pyritonema villosa; Lophelia pertusa
• Online Access: https://zenodo.org/record/3853711; https://doi.org/10.5281/zenodo.3853711

Pyrodendrina villosa isp. nov. urn:lsid:zoobank.org:act: 1365F057-8115-4FF7-9F0D-48E5C896CECA Fig. 26 Morfotipo B 4 – (?) Mayoral 1988: 306; pl. I, figs 6–7. Sponge form II – Wisshak et al. 2005a: 991, fig. 7B. Semidendrina Form – Wisshak et al. 2005a: 993, fig. 9. Foraminiferan trace – Försterra et al. 2005: 957, fig. 9D–H. non-camerate radiating form – Bromley 2005: 908, fig. 10. Hirsute camerate form – (?) Bromley 2005: 908, fig. 11. Semidendrina -form – Wisshak 2006 (partim): 91, fig. 29C–D. Microsponge-form 2 – Wisshak 2006: 84, fig. 28D. Foraminiferan Form – Beuck et al. 2010 (partim): 467, fig. 8C–D. Clionolithes isp. – (?) Pokorný & Štofik 2016: fig. 11L. Diagnosis Central node of elongate to irregular shape located at shell surface as open channels, with branched and tapered galleries radiating from it, as well as shorter vertical tunnels penetrating deeper into the substrate. Gallery terminations blunt to tapered, ornamented with long, hairy protrusions. Etymology From the Latin ‘villosus’, villous, a reflection of the irregular, furry ornamentation of this trace. Type material, locality and horizon Holotype (Fig. 26 A–D) and a number of additional specimens cast in epoxy from a Lophelia pertusa coral skeleton from the Lindos Bay Formation, Middle Pleistocene, found at isolated hill one km SW of Lardos, Rhodes, Greece. For further details concerning the type locality and its ichnological record, see Titschack et al. (2013) and Wisshak (2008). Deposited in the trace fossil collection of the Senckenberg Institute in Frankfurt, Germany (SMF XXX 866). Description The irregularly-shaped and branched central cavity of this large Pyrodendrina ichnospecies is developed as system of open channels at the substrate surface (Fig. 26A, E–F), while side branches radiating from it may run as tunnels closely parallel to and below the surface. The true extent of the open channels may be uncertain due to collapse of the thin roof of the trace, particularly in taphonomically advanced stages. Anastomoses are rare. The ...