Definition of Helmetiida. Meaning of Helmetiida. Synonyms of Helmetiida

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

Definition of Helmetiida

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Meaning of Helmetiida from wikipedia

- Helmetia is an extinct genus of arthropod from the middle Cambrian. Fossils of the type species Helmetia expansa have been found in the Burgess Shale of...
- incomplete tergite fusion. These members, which formerly comprised the order Helmetiida (which currently only contains Helmetia, Rhombicalvaria and Kuamaia),...
- †Strabopida Order †Sinoburiida Order †Xandarellida Order †Nectaspidida Order †Helmetiida † Order †Eodiscina Order †Olenellina Order †Asaphida Order †Aulacopleurida...
- Concilioterga  Order Helmetiida Nectopleura (e.g. Nektaspida) Naraoia Petalopleura  Order Xandarellida Trilobites, subclass Trilobita...
- artiopods. Within this taxon, It is also classified as helmetiids (Order Helmetiida, Family Helmetiidae) alongside similar forms such as Helmetia, Haifengella...