NMITA:Neogene Marine Biota of Tropical America

'Dinematichthyinorum' aff. sauli (Nolf & Stringer, 1992)

Specimen details:
Sample Number: PPP2221
Type Status: nontype
Scale Bar is 1 mm
Type: SEM
Orientation: mesial
Locality: Bocas del Toro, Bocas del Toro, Panama

- Enlarge Image -

Morphologic Description:

    Otolith shape: oval and elongate;
    Thickness: thick;
    Form: -Mesial slightly convex;
    Form: -Lateral convex;
    Dorsal margin: slightly flat to rounded;
    Dorsal margin sculpture: entire;
    Ventral margin: rounded and entire;
    Posterior margin: sharply rounded and entire;
    Sulcus acusticus: mesial, archaesulcoid;
    Colliculum: homomorph, single oval colliculum slightly indented and elongated;
    Pseudocolliculum: absent;
    Ostium and Cauda: undifferentiated;
    Ostio-caudal differentiation: no constriction;
    Collum: absent;
    Crista superior: poorly developed along the entire sulcus;
    Crista inferior: poorly developed along the entire sulcus;
    Dorsal depression: two shallow depressions- an anterior one just above the rostrum and the other in the posterior part of the dorsal margin;
    Ventral depression: absent;
    Rostrum: absent;
    Antirostrum: absent;
    Excisura: absent;
    Early Pleistocene: Swann Cay Fm., Bocas del Toro, Panama;

Return to: