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Henodus
Henodus
'An artist's representation of Henodus.'

Distribution

Southern Germany

Classification

Sauropterygia, Placodontia, Cyamodontidae

Meaning of name

Armoured

Named by

Huene, 1936

Time

Carnian stage of the late Triassic

Size

1 metre (3 ft)

Lifestyle

Seafloor-forager

Species

H. chelyops

Henodus was a cyamodontid from what is now.  It during the late Triassic, being one of the last placodontoids.

Speculations[]

We can imagine Henodus like some kind of reptilian ray, paddling it broad flat body across the bed of a shallow lagoon, foraging in the rippled sand with its broad mouth.  Its plate-like body would have made it better adapted to searching along flat sea beds than to the shellfish-encrusted reefs frequented by its relatives.  Its weak limbs suggest that it did not spend much time on land.

Features[]

Carapace[]

There is a carapace over the whole of the body that stretches out well beyond the span of its limbs, and as in the other cyamodonts this is matched by a plastron, a lower shell, which covers the undersurface.  Both carapace and plastron are made up of a geometric array of individual plates.  The head is squared off at the front and is shortened in front of the eyes.

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