2012[8] A – dorsal view on a rendered 3D model, based on own observations B–E – micrographs under polarized light B – well preserved specimen USNM 83486f with the exopods in a "rusty" preservation (cf. García−Bellido and Collins 2006) C – stereo image of specimen USNM 139665. Exopods of preceding limbs are super−imposing each other, separated by a thin layer of sediment D – detail of specimen ROM 56766A in "rusty" preservation.