|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Cephalopoda - Ammonitida
It was corrected as Hildoceratoidea by Hillebrandt (2006) and Howarth (2013).
It was assigned to Ammonitina by Donovan et al. (1981), Thomson and Smith (1992), Arthur et al. (1993), Smith and Tipper (1996), Hillebrandt (2006) and Howarth (2013).
|Year||Name and author|
|1952||Harpocerataceae Arkell p. 259|
|1981||Hildocerataceae Donovan et al.|
|1992||Hildocerataceae Thomson and Smith p. 33|
|1993||Hildocerataceae Arthur et al. p. 29|
|1996||Hildocerataceae Smith and Tipper p. 54|
|2006||Hildoceratoidea Hillebrandt p. 229|
|2013||Hildoceratoidea Howarth p. 68|
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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.