-
straight or
folded (parasulcate). The s**** has an
erect beak, and
conjunct deltidial plates, the
foramen being of a 'permesothyrid' type. The
hinge teeth are...
-
rectimarginate to
lightly sulcate. Beak (posterior
point of s****) suberect, with
deltidial plates conjunct (as symphytium) and
mostly exposed, and
bearing a small...
-
foramen large, oval in shape, hypothyridid, with well
developed rim;
deltidial plates wide,
disjunct to just conjunct; beak
ridges angular, extending...
- midlength; beak
erect and m****ive with
small hypothyroid pedicle foramen;
deltidial plates disjunct.
Anterior commissure strongly uniplicate;
lateral commissure...
- tip in adult;
foramen big, oval, hypothyridid, with well
developed rim;
deltidial plates narrow,
disjunct to just conjunct; beak
ridges subangular; interareas...
- (submesothyridid to
almost hypothyridid),
leaving ample space for the
small deltidial plates. The
pedicle collar is well developed, and is
supported by median...
