Definition of Helcionellid. Meaning of Helcionellid. Synonyms of Helcionellid

Here you will find one or more explanations in English for the word Helcionellid. Also in the bottom left of the page several parts of wikipedia pages related to the word Helcionellid and, of course, Helcionellid synonyms and on the right images related to the word Helcionellid.

Definition of Helcionellid

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Meaning of Helcionellid from wikipedia

- Helcionellid or Helcionelliformes is an order of small fossil s**** that are universally interpreted as molluscs, though no sources spell out why this...
- concept that the ancestral molluscan radula was mineralized. However, the Helcionellids, which first appear over 540 million years ago in Early Cambrian rocks...
- Oelandia is an extinct genus of basal molluscs of the family helcionellid from the Middle Cambrian of Sweden, China and North America. It has a small,...
- Marrella Radiodonts Halwaxiids Opabinia Odontogriphus Small s****y fauna Helcionellids Evolutionary concepts Trends Cambrian substrate revolution Themes Cladistics...
- concept that the ancestral molluscan radula was mineralized. However, the Helcionellids, which first appear over 540 million years ago in Early Cambrian rocks...
- Tichkaella is a genus of helcionellid from the Middle Cambrian. It has a strongly spiralled, smooth s**** with concentric ridges that have low relief....
- Totoralia is a genus of limpet-like helcionellid known from Cambrian deposits including the Burgess Shale. It comprises two species. T. reticulata bears...
- Marrella Radiodonts Halwaxiids Opabinia Odontogriphus Small s****y fauna Helcionellids Evolutionary concepts Trends Cambrian substrate revolution Themes Cladistics...
- helcionellid from the Middle Cambrian of New Zealand. It is flattened sideways, with a dividing wall within its s****; it resembles the helcionellid Eotebenna...
- Marrella Radiodonts Halwaxiids Opabinia Odontogriphus Small s****y fauna Helcionellids Evolutionary concepts Trends Cambrian substrate revolution Themes Cladistics...