|
|
|
Compare the pictorial approach above with the purely descriptive narration below:
| Superfamily Dameselloidea
Introduction: similar to Odontopleuroids, spiny, surface finely to coarsely granulose. Cephalon: opisthoparian sutures; glabella narrow or broad based, tapering forward, less complex lobation than in Odontopleuroidea; genal spines typically present. Thorax: with up to 13 segments, less specialized than in Odontopleuroidea, more as in typical polymerids Pygidium: longer pygidia than in Odontopleuroidea, with more axial segments; tapering axis, thicker-set marginal spines, 1-7 pairs of pleural pygidial spines of varying length |
Here are two representative Dameselloidea
| Damesella | Drepanura |
|
|
| Odontopleuroidea
|
Dameselloidea
|
