Placoderm Armor: April 22, 2012.

[pleecan (Peter Lee)]

Found a piece of placoderm armor sticking out of rock ... the freshly fractured surface had the distinct pimple like bone projections...

Negative cast













Positive cast:












The flip side is smooth no dimples...


most of the armor is in the rock... it was a chance fracture that revealed the true id...

[pleecan (Peter Lee)]

[Joe Botting]

That's impressive material... There can't have been many things around that could munch through that. It almost looks like overkill, in fact...

[pleecan (Peter Lee)]

Some of the placoderms grew up to 6m in long... top of the food chain... covered in bony armor.

Yesterday I found bony placoderm bone in limestone concretions but the concretions "kettles" are protected by law, hence no extraction......