-
article on "
exogastric", but its
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Wiktionary entry "
exogastric" You can also:
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Exogastric in Wikipedia...
- in the
family Karoceratidae,
characterized by
compressed straight or
exogastricly curved s**** with
slender ventral siphuncles.
Megaloceras Paleobiology...
- 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...
-
found on
Mingan Island. The s**** of
Minganoceras is a
slender depressed exogastric cyrtocone,
curved so that the underside, the venter, is longitudinally...
-
included in the Poterioceratidae, a
family of
subcircular to
compressed exogastric cyrtocones without a
hyponomic sinus.
Mecynoceras has a compressed, gibbous...
- molluscs,
endogastric s**** coil
backwards (away from the head),
whereas exogastric s**** coil forwards; the
equivalent terms in
bivalved molluscs are opisthogyrate...
-
middle Ordovician Oncocerids (family Oncoceratidae). Its s**** is
curved exogastrically, such that the
ventral margin is
longitudinally convex, but less so...
-
included in the Archiacoceratidae, a
family characterized by compressed,
exogastric,
cyrtocones with a large, actinosiphonate,
dorsal siphuncle. The Paleobiology...
-
Ordovician with the Trocholitidae,
which if so
would make it (Eburoceras)
exogastric.
Eburoceras is the most
strongly curved of the
Cambrian ellesmeroceratids...
