Middle Eocene vertebrate fauna from the Aridal Formation, Sabkha of Gueran, southwestern Morocco Author Zouhri, Samir Author Gingerich, Philip D. Author Khalloufi, Bouziane Author Bourdon, Estelle Author Adnet, Sylvain Author Jouve, Stéphane Author Elboudali, Najia Author Amane, Ayoub Author Rage, Jean-Claude Author Tabuce, Rodolphe text Geodiversitas 2021 2021-03-11 43 5 121 150 journal article 7746 10.5252/geodiversitas2021v43a5 e42658a2-0e15-4e90-9bc5-0d00cbcbd781 1638-9395 4605963 urn:lsid:zoobank.org:pub:697FC553-E37B-4EF9-97A4-950E4DEE246C Gen. et sp. indet . EXAMINED MATERIAL. — FSAC-Bouj-372 ( Fig. 5G ), proximal fragment of a right pectoral spine. DESCRIPTION Only the left part of the proximal portion of the spine is preserved. The cleithral process is short with a thick and smooth external surface. The ornamentation of the base of the shaft is formed by ridges and thin tubercles. REMARKS The spine is too fragmentary to be attributed to a siluriform family, but the ornamentation pattern of the spine body is reminiscent of ariid pectoral spines.