-
Helcionellid or
Helcionelliformes is an
order of
small fossil s**** that are
universally interpreted as molluscs,
though no
sources spell out why this...
- 201100001. PMID 21681989. Brock, G. A. (2004). "A New
species of
Tannuella (
Helcionellida, Mollusca) from the
Early Cambrian of
South Australia". ****ociation...
-
Pelagiellida †
Helcionellida †...
- PMID 21681989. S2CID 2767810. Brock, G.A. (2004). "A new
species of
Tannuella (
Helcionellida, Mollusca) from the
Early Cambrian of
South Australia". ****ociation...
- re****igned the
Helcionellacea (alternatively Helcionelloidea) to the
Helcionellida with the
following families, Helcionellidae, Garkielladae, and Procarinaridae...
-
originally like this[citation needed]:
class Helcionelloida,
order Helcionellida,
superfamily Helcionelloidea,
family Helcionellidae. The
taxonomy of...
- Brock, G.A.; Patterson, J.R. (2004). "A new
species of
Tannuella (
Helcionellida, Mollusca) from the
Early Cambrian of
South Australia".
Memoirs of the...
