|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Ungulata - Helohyidae
It was considered an invalid subgroup of Artiodactylamorpha by Spaulding et al. (2009).
It was assigned to Pantolestoidea by Hay (1902); to Anthracotherioidea by Coombs and Coombs (1977); to Artiodactyla by Pilgrim (1940), Carroll (1988) and Ferrusquía-Villafranca (2006); and to Dichobunoidea by McKenna and Bell (1997), Vislobokova (2004) and Theodor et al. (2007).
|Year||Name and author|
|1902||Helohyidae Hay p. 650|
|1940||Helohyidae Pilgrim p. 141|
|1977||Helohyidae Coombs and Coombs p. 292|
|1997||Helohyidae McKenna and Bell p. 403|
|2004||Helohyidae Vislobokova p. 90|
|2006||Helohyidae Ferrusquía-Villafranca p. 993|
|2007||Helohyidae Theodor et al. p. 39|
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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.