| An exception is the large ostracod Gigantocypris, a creature with two parabolic reflectors several millimetres across. |
| From the superficial resemblance of the shell to that of an Ostracod, this is known as the Cypris stage. |
| A number of copepod and ostracod crustaceans possess eyes with mirrors, but the mirrors are so small that it is difficult to tell whether the images are used. |
| The most beautiful examples of luminous secretions are found among the ostracod crustacea. |
| The rule is a general observation of crustacean growth but is not in every case applicable to all ostracod ontogenies. |
| Other fossil seed, leaf, beetle, ostracod, snail and fish remains come from a carbonaceous siltstone that represents a local waterlogged habitat. |
