- palaeo.2007.03.046. Gubanov,
Alexander P.; Peel, John S. (2003). "Latest
Helcionelloid Molluscs from the
Lower Ordovician of Kazakhstan". Palaeontology. 44...
- . Gubanov,
Alexander P.; Peel, John S. (2003). "The
early Cambrian helcionelloid mollusc Anabarella Vostokova". Palaeontology. 46 (5): 1073. Bibcode:2003Palgy...
-
resolve this
confusion was to
separate out the
predominantly coiled helcionelloids from the traditional, cap-like tergomyans, this
latter group containing...
-
known from
earliest Cambrian small skeletal fossils,
interpreted as a
helcionelloid. Marusin,
Vasiliy V.; Kochnev,
Boris B.; Karlova,
Galina A.; Nagovitsin...
- but that
taxonomy to not use the name Helcionelloida.
Taxonomy of
helcionelloid according to the
opinion of P. Yu. Parkhaev:
Gastropoda Cuvier, 1797...
- s****y
fossil comprising straight or
slightly coiled s**** of the
helcionelloid type. The
outer surface of
their s**** is smooth,
whereas the inner...
-
often poorly preserved. They
include sponges, brachiopods, hyoliths,
helcionelloids, trilobites, eocrinoids, and
enigmatic invertebrates (Chancelloria,...
- 1999.tb00534.x. Gubanov, A.P.; Peel, J.S. (2003). "The
early Cambrian helcionelloid mollusc Anabarella Vostokova". Palaeontology. 46 (5): 1073–1087. doi:10...
- Annelida. Gubanov,
Alexander P.; Peel, John S. (2003). "The
early Cambrian helcionelloid mollusc Anabarella Vostokova". Palaeontology. 46 (5): 1073. doi:10.1111/1475-4983...
-
often poorly preserved. They
include sponges, brachiopods, hyoliths,
helcionelloids, trilobites, eocrinoids, and
enigmatic invertebrates. The
types of body...
