Coccosteus cuspidatus Miller ex Agassiz MS

This medium sized placoderm is very common in the Sandwick Fish Bed

As the fish is covered with dermal plates it is often found as a heap of disarticulated plates together with a more or less well preserved tail. The skin covering the tail is often only visible as a vague smear. The jaws have tiny teeth like structures and it could probably  prey on small acanthodians and juvenile specimens. Since the fish is built like a bottom dweller, with its flat ventral belly, mouth on the ventral side, it may have scavenged on dead fish or small invertebrates. It is also suggested in the literature that it was also an ambush predator.

Complete fish from Achanarras quarry, Caithness

Complete fish, Sandwick Fish Bed

Complete head in dorsal view.

Incomplete head, Sandwick fishbed.

Median-dorsal plate, Sandwick Fish Bed

Median-dorsal plate, Moray Firth area.

Nuchal plate, external view, Moray Firth area.

Nuchal plate and para-nuchal plate, external view, Moray Firth area.

Reconstruction of  complete fish (after Miles, 1968 ©).

Reconstruction of body in dorsal view (after Miles, 1968 ©).

Reconstruction of body in ventral view (after Miles, 1968 ©).

Reconstruction of  head in dorsal view (after Miles, 1968 ©).

Reconstruction of head in frontal view (after Miles, 1968 ©).

Reconstruction of body in ventral view (after Miles, 1968 ©).

Reconstruction of  median dorsal plate, external and internal view (after Miles, 1968 ©).

Reconstruction of nuchal plate, external view (after Miles, 1968 ©).

Reconstruction of nuchal plate, internal view (after Miles, 1968 ©).

Reconstruction of fish in dorsal view (after Miller, 1841).

Reconstruction of fish in lateral view (after Agassiz, 1844).

Reconstruction of fish in lateral view (after Traquair, 1889).

Reconstruction of body in dorsal view (after Traquair, 1889).

Reconstruction of body in ventral view (after Traquair, 1889).

Drawing of specimen (after Woodward, 1891).