Description of order Bougueticrinida: Crinoids with the stalk retained throughout life; lacking true cirri but ... [details]

Bathycrinidae with cup conical to funnel shaped, or with median constriction. Basals may be fused, absent or ... [details]

Bathycrinidae with cup composed of low ring of fused basals commonly at an angle relative to higher, conical ... [details]

Bourgueticrinina with 5 undivided rays. Cup mostly elongate, cylindrical to spindle shaped, composed of a proximale ... [details]

Bathycrinidae with cup convex in profile, only radials visible externally. Radials large, bulging; arms robust. ... [details]

Same as subfamily. [details]

Bourgueticrinidae with sutures between cup ossicles indistinct; basals commonly fused. Number of radials and arms ... [details]

Bourgueticrinidae with cup of 5 high, slender basals and 5 much shorter radials surrounding narrow central canal. ... [details]

Bathycrinidae with primibrachials elongate; pinnules laterally compressed, without cover plates. Proximal columnals ... [details]

Bathycrininae with no angular boundary between basals and radials. Circlet of unfused basals approximately as high ... [details]

Bathycrinidae with radials tall; arms delicate. Basals absent or small and covered by the radials.  [details]

Bourgueticrinina with arms diverging from their base, divided at primibrachial 2 or distally; undivided in ... [details]

Phrynocrinidae with cup low and broad conical, almost discoidal, with 5 basals and 5 slightly larger radials ... [details]

Same as subfamily. [details]

Phrynocrinidae with cup slightly conical, radials slightly higher than basals. Arms undivided; adjacent first ... [details]

Septocrinidae with brachials and pinnulars bearing thorns. Proxistele with numerous low columnals, tapering toward cup. [details]

Septocrinidae with cup bearing laminar, interradial projections. First primibrachials not contiguous; second ... [details]

Septocrinidae with first primibrachials in adults proximally in contact laterally. Proximal column articulations ... [details]

Order Bourgueticrinida was reduced to suborder Bourgueticrinina with order Comatulida in Hess (2011), a decision ... [details]

Order Bourgueticrinida was reduced to suborder Bourgueticrinina with order Comatulida in Hess (2011), a decision ... [details]

According to Hess (2011, p. 154-155), "A. H. Clark (in Zittel, 1913, p. 230) recorded and characterized the genus ... [details]