Medium to large starfish with very long and slender arms and a relatively broad and flattened central disc.  Arms may be slightly upturned towards the tips.  Ranges through the White Chalk, but articulated material is very scarce.

1).  Ophryaster cf. magnus; Aboral view of a large and well preserved specimen (x0.9, White Chalk, BMNH (British Museum (Natural History) London) Earth Lab display specimen).  Image © 2006 The Natural History Museum, by kind permission.

2).  Ophryaster cf. magnus; Detail of the central disc of the above specimen (x2.0, White Chalk, BMNH (British Museum (Natural History) London) Earh Lab display specimen.  Image © 2006 The Natural History Museum, by kind permission.

3). Ophryaster oligoplax; Oral view of a somewhat distorted semi-complete specimen (x2, Seaford Chalk, Thanet coast, Kent, in the collection of Keith Little).  Image © 2012 Keith Little, by kind permission.

4). Ophryaster oligoplax; Oral view of a partial specimen.  The incomplete arm lower left is potentially part of a second individual (x1.3, Seaford Chalk, Thanet coast, Kent, in the collection of Keith Little).  Image © 2012 Keith Little, by kind permission.

5). Ophryaster oligoplax; side view of the above partial specimen (x2.0, Seaford Chalk, Thanet coast, Kent, in the collection of Keith Little).  Image © 2011 Keith Little, by kind permission.