|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Cephalopoda - Ceratitida - Clionitidae
Arabu's name is invalid because the type genus Clionites Mojsisovics is a homonym. Subsequent workers changed the spelling to Clionititidae but still attributed the name to Arabu; that procedure is not correct. A replacement family name needs to be proposed but, as far as I can tell, none has been proposed.
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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.