|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
|Year||Name and author|
|1908||Polydorites Polydorites and Douvillé|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|W. Hantzschel 1975||U-shaped tunnels with spreite, corresponding to tiny Rhizocorallium, sometimes radiating inward from commissure of brachiopods; up to 2 cm long and 5 mm wide; commonly found in hells of brachiopods, mollusks, and echinoids.|