Portable floor panel and portable floor system comprising a plurality of such panels

A panel of detachable floor (12), comprising: a flat (14) portion including a top surface (26), a core (20), and a bottom surface (22), members of mating edges (16, 18 ); a fastening assembly panel (40) along each edge where the fixing assembly comprises a fixing device (42, 44) extending from an edge into the core (20); connectors (46); and an anchoring element (48) adjoining the fixing device (42, 44); the anchor element having a connector receiving portion (52), characterized in that the anchor element extending through the bottom surface (22), and the connectors engage the fastening device and the anchoring element for fixing the anchoring to the fixing device.