Fig. 4
From: A new echinoderm Lagerstätte from the Pliensbachian (Early Jurassic) of the French Ardennes
aSinosura brodiei (Wright, 1866), detail of proximal arm segment (GZG.INV.30556), dorso-lateral view, showing spine articulation; scale bar equals 100 μm. bSinosura brodiei (Wright, 1866), articulated specimen with arm fragment (GZG.INV.30556), ventral view; scale bar equals 500 μm c, d, e“Ophiomusium” sp., articulated specimen with arm fragments (GZG.INV.30557), dorsal view (c), ventral view (d) and detail of ventral view (e); scale bars equal 1 mm. f Undetermined ophiuroid, articulated specimen (GZG.INV.30558), dorsal view; scale bar equals 500 μm. All from the Pliensbachian Davoei Zone of Sedan, Ardennes, France; main echinoderm level, lorry park cutting (a–e) and level A, road cutting (f)