|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Stenuroidea - Eophiuridae
It was assigned to Protasteridae by Schuchert (1915); to Stenurida by Sepkoski (2002); and to Eophiuridae by Spencer (1951), Owen (1965), Spencer and Wright (1966), Dean Shackleton (2005) and Blake (2013).
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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.
|W. K. Spencer 1951||A stenurid of the family Eophiuridae with well-plated disk with small overlapping scales, spines set parallel to the arm's length. Ambulacral basins shared subequally by two ambulacralia. Ambulacral axis broad and stiff. Paired mouth-angle plates broadly notched proximally|
|J. Dean Shackleton 2005||Inferomarginal ossicles alternate bettween small and large size; additional spine-bearing ossicle in jaw causing mouth angle plate to be L-shaped.|