Fig. 4 | Swiss Journal of Palaeontology

Fig. 4

From: The crinoid Eugeniacrinites cariophilites from the Late Jurassic of southern Germany: babies, cripples and enigmatic wing plates

Fig. 4

Prejuvenile (ae) and juvenile cups (fk) of Eugeniacrinites cariophilites. a Cup with narrow radial ridges and concave interradial areas, upper margin nearly straight, facets to primibrachials small and circular; M11417; a1 distal view, a2 lateral. b Lateral view of cup with slightly larger facets to primibrachials and concave upper interradial margins, M11418. c Aboral view of cup similar to a, facet to column synostosial; M11419. d Aboral (proximal) view of cup with wider facets to primibrachials, interradial areas with faint ridge; M11420. e Lateral view of cup with facets to primibrachials sunken relative to interradial areas, interradial processes blunt; M11421. f Lateral-distal view of small juvenile cup with facets to primibrachials distinctly sunken between lanceolate interradial processes; M11422. g Lateral view of cup with strongly developed radial ridges and deep concave interradial areas, facet to column wide; M11423. h Lateral view of cup with sharp radial ridges, facet to column narrow; M11424. i Lateral-distal view of cup with narrow lower part, strongly raised interradial processes with adjoining ribs near sutures; M11425. j Aboral view of cup with interradial ribs along sutures, facet to column synostosial, M11426. k Aboral view of cup with irregular interradial ribs, facet to column weakly symplectial, M11427. Scale bar 1 mm, upper bar ae, lower bar fk

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