-
article on "
exogastric", but its
sister project Wiktionary does: Read the
Wiktionary entry "
exogastric" You can also:
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Exogastric in Wikipedia...
- only
permit large size to be
attained with a
straight s****,
whereas exogastric coiling –
initially rather rare –
permitted the
spirals familiar from...
- end. It
bears pronounced concentric ribbing around its
strongly coiled exogastric s****. Peel, J. S. (1991). "Functional
Morphology of the
class Helcionelloida...
-
longitudinally convex. A few, the two
known genera in
Balkoceratidae are
exogastrically curved, with the
ventral side
convex and
dorsal side concave. Septa...
-
Reedsoceras was
named as a
genus characterized by
rapidly expanding exogastric cyrtocones with
unconstricted apertures and
straight sutures. The siphuncle...
- in the
family Karoceratidae,
characterized by
compressed straight or
exogastricly curved s**** with
slender ventral siphuncles.
Megaloceras Paleobiology...
-
characterized by
strongly curved, depressed,
breviconic s****.
Curvature is
exogastric,
meaning the lower, or ventral, side is
convex in
longitudinal profile...
-
small to tiny
forms with
orthoconic or
endogastric s****, a few
being exogastric, with
proportionally large ventral siphuncles that
contain numerous diaphragms...
-
Pentameroceras is a
straight to
slightly exogastric breviconic oncocerid from the
middle Silurian of
North America and
Europe belonging to the Trimeroceratidae...
-
included in the Poterioceratidae, a
family of
subcircular to
compressed exogastric cyrtocones without a
hyponomic sinus.
Mecynoceras has a compressed, gibbous...
