-
Helcionelloida is an
extinct group of
ancient molluscs (phylum Mollusca).
These are the
oldest known conchiferan molluscs, that is, they had a mineralised...
-
Monoplacophora (non-monophyletic)
Cephalopoda Scaphopoda Rostroconchia †
Helcionelloida †
Gastropoda Bivalvia Diversity 85,000
recognized living species....
-
exogastric s****. Peel, J. S. (1991). "Functional
Morphology of the
class Helcionelloida Nov., and the
Early Evolution of the Mollusca". In Simonetta, A. M.;...
-
Monoplacophoran Families". It has
become clear that the
fossil taxon Helcionelloida does not
belong to the
class Gastropoda; it is now a
separate class...
-
genus Latouc****a was
originally like this[citation needed]:
class Helcionelloida,
order Helcionellida,
superfamily Helcionelloidea,
family Helcionellidae...
-
Gastropoda Scaphopoda Cephalopoda Archinacelloidea† Rostroconchia†
Helcionelloida†
Evolution of
Mollusca Kocot,
Kevin M.; Poustka,
Albert J.; Stöger,...
- Monoplacophora). For an
alternate 2007-2007
taxonomy by P. Yu.
Parkhae see
Helcionelloida.
Species in the
genus Yochelcionella include:
Yochelcionella americana...
- enigmatic, and has been
placed in a
number of
different groups (Gastropoda,
Helcionelloida, or Monoplacophora). This
mollusk is
common in the shale,
where they...
- S2CID 128682549. Peel, J. S. (1991). "Functional
Morphology of the
class Helcionelloida Nov., and the
Early Evolution of the Mollusca". In Simonetta, A. M.;...
-
classification Domain:
Eukaryota Kingdom:
Animalia Phylum:
Mollusca class: †
Helcionelloida Order: †Helcionelliformes Family: †Helcionellidae Genus: †Tannuella...
