Osteoderms- Scirrotherium ?

[LabRatKing]

Hello gang,

 

Here is an osteoderm. This was in a box from my travels, purchased in Cartagena, Columbia in a little shop on the Plaza de las Esmeraldas in the El Laguito.

 

Sadly, the identity and location are long gone due to a sudden intrusion of the ocean weeks later in Chile. (Long story involving a ship and some outdated charts in Caleta Cinfuncho...) The ink ran on the label and only “Magdalena” and “Huila” are legible...dang ballpoints...

 

Anyway, I am attempting to ID it.

 

Best I can tell this is likely 

Scirrotherium hondaensis, which means Magdalena River, Honda group, lower Villavieja fm. Huila, Columbia

 

Hoping someone here is more knowledgeable as I’m just guessing from a few web searches!

 

[hemipristis]

Armadillo, I believe

[Lorne Ledger]

Apparently the genus Scirrotherium is going through a systematic reevaluation and is paraphyletic with Holmesina.  It could be an ancestor of the giant armadillo we know here in North America, or it may be conspecific.  In any case - it is a giant armadillo

 

Systematic revision and redefinition of the genus Scirrotherium Edmund and Theodor, 1997 (Cingulata, Pampatheriidae): Implications for the origin of pampatheriids and the evolution of the South American lineage including Holmesina

[LabRatKing]

Yeah, I was finding all sorts of contradicting information...good to see taxonomy is an issue outside Platyhelminthes as the battle to categorize is a mess there too.