Not exactly in the right location as I need to figure out how to better translate from Ark Lon/Lat to the map Lon/Lat but here's a proof of concept for a marker where I added the taming pen made by McScruff to the map as a pin. Can even get back here to the forum by clicking on the link. :)
https://codepen.io/mle_ii/full/VrrNva/
Definitely not the actual final version of how it will look, just trying to figure out what will work.