NMITA:Neogene Marine Biota of Tropical America

Echiodon sp.1

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, becoming angular posteriorly;
    Dorsal margin sculpture: slightly irregular;
    Posterior margin: sharply rounded and entire;
    Ventral margin: slightly flat and irregular;
    Dorsal depression: very shallow and elongate;
    Crista inferior: poorly developed along the entire sulcus;
    Crista superior: poorly developed along the entire sulcus;
    Collum: absent;
    Ostio-caudal differentiation: absent;
    Ostium and Cauda: oblong, large and slightly flexed ventrally;
    Pseudocolliculum: absent;
    Colliculum: homomorph, with single horizontal colliculum;
    Excisura: very narrow;
    Antirostrum: reduced;
    Rostrum: short and rounded;
    Ventral depression: absent;
    Sulcus acusticus: ostial, heterosulcoid;
    Dorsal margin: rounded;
    Thickness: thick;
    Form: -Mesial flat;
    Form: -Lateral convex;
    Early Pleistocene: Swann Cay Fm., Bocas del Toro, Panama;

Return to: