Fig. 14

Palorbitolinid and mesorbitolinid foraminifera from spinel-bearing “Urgonian” limestone (Late Barremian–Aptian): aMesorbitolina texana (Roemer)—axial section, conical test with megalospheric embryonic apparatus; bMesorbitolina texana (Roemer)—subaxial test with conical tests and alveolar layer of the deuteroconch; c, dMesorbitolina cf. parva (Douglass)—conical tests with convex base, globular protoconch and divided peri-embryonic zone; e–iPalorbitolina? lenticularis (Blumenbach)—large-sized tests with low conical to flat shape and concave base without embryonic apparatuses (microspheric forms); jDictyoconus cf. arabicus Henson—tangential section with subepidermal plates (Scale bars: 500 μm)