= Caviidae
{c}
<Caviidae> is a <taxonomic family> of <rodents> containing the <taxonomic genus> <Cavia>, which includes the domestic <guinea pig>. The inspected NCBI family tree also contains <Dolichotis>. Thus <Caviidae> is broader than either one of those genera, while remaining within <Rodentia>.<Caviidae in NCBI Taxonomy>[TaxID10139, lineage and children]{ref}
For a classification example, a record identified as <Cavia porcellus> belongs to <Cavia> and <Caviidae>. A record assigned to <Dolichotis> can share the family while belonging to a different genus. The shared family does not make the two records the same <species>, and a family-level sequence label does not identify the domestic <guinea pig> specifically.
This matters when comparing biological experiments. A reported response in a named <species> and preparation cannot be promoted automatically to a measured property of every member of <Caviidae>. The family supplies evolutionary and taxonomic context, while the experimental organism must still be identified at the resolution needed for the question. The cited classification fixes which provider's family usage is being followed; no numerical species count is needed to understand the distinction.
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