Setchelliogaster is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of fungi in the order Agaricales

Agaricales

The fungal order Agaricales, also known as gilled mushrooms , or euagarics, contains some of the most familiar types of mushrooms. The order has 33 extant families, 413 genera, and over 13000 described species, along with five extinct genera known only from the fossil record...

. It is incertae sedis

Incertae sedis

, is a term used to define a taxonomic group where its broader relationships are unknown or undefined. Uncertainty at specific taxonomic levels is attributed by , , and similar terms.-Examples:*The fossil plant Paradinandra suecica could not be assigned to any...

with respect to familial

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 placement within the order, although Kirk and colleagues (Dictionary of the Fungi, 10th edition, 2008) consider it likely aligned with either the Bolbitiaceae

Bolbitiaceae

The Bolbitiaceae are a family of basidiomycete fungi. There are 17 genera and 171 species in the family.-Description:This family is of mushrooms that have a hymenium on gills, brown spores and a hymenoderm pileipellis.-Differences in genera:...

 or the Cortinariaceae

Cortinariaceae

The Cortinariaceae are a large family of gilled mushrooms found worldwide, containing over 2100 species. The family takes its name from its largest genus, the varied species of the genus Cortinarius...

. The genus is widespread in warm, dry areas, and contains five species. It was circumscribed by Czech mycologist Zdeněk Pouzar in 1958.