Red Blooded Ammonites? | The Octopus News Magazine Online
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Red Blooded Ammonites?

Architeuthoceras

Architeuthis
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#1
Did these guys put a hitch in the dinosaurian soft tissue fossils or just find out that ammonoids were red blooded?

Dinosaurian Soft Tissues Interpreted as Bacterial Biofilms

"Discovery of these spheres in an ammonite suture indicated they had no relationship to iron derived from blood. These spheres were identified as framboids which are seen world wide in black smokers, algal mats and are commonly found in sediments."

All cephalopod blood is copper based, right???
 

monty

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#2
Architeuthoceras;123571 said:
All cephalopod blood is copper based, right???
Yes, but not all mollusc blood (tip of the hat to Fugisawas Sake for pointing that out to me: some chitons use a form of hemoglobin)

Of course, there's no reason to expect much (any?) of the animal's blood in the sutures, although the siphuncle is adjacent to sutures in ammonites.
 

vw1

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#3
monty;123582 said:
Yes, but not all mollusc blood (tip of the hat to Fugisawas Sake for pointing that out to me: some chitons use a form of hemoglobin).

As do others eg the bivalve Anadara, often known as "blood ark" clams. Hemoglobin is not uncommon in molluscs, and there is no reason to believe that ammonoids didn't have it (no particular reason, however, to believe that they didn't have hemocyanin, either).
 

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