Rank Genus | Phylum incertae sedis | |
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Similar Microconchida, Tentaculita, Spirorbis, Tentaculites, Serpulidae | ||
Punctaconchus is a genus of microconchid tubeworms. Their tubes have large pores (punctae) penetrating the tube wall. Tubes lumen is covered by ripplemark−like transverse ridges. Punctaconchus occurs in the Middle Jurassic of England and France.
References
Punctaconchus Wikipedia(Text) CC BY-SA