Unresolved name

Unresolved name: Animals » Arthropods » Trilobites » Proetida » Proetidae » Archegonus «

Archegonus semiplanus

Body symmetry

Namigai et al 2014
bilaterally symmetric
URI: http://purl.obolibrary.org/obo/PATO_0001324

Definition: being symmetric about a plane running from frontal end to caudal end (head to tail), and having nearly identical right and left halves

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