Siloskormos is an order of herbivorous creatures that are well known for their towering sizes across Teraminos. They have been specializing well into their size, but some of these animals have been known to use trunks to aid them in gathering food. This order has one family: the Altatruncus. However, they also evolved from the lesser known Humilisaltitudo. The latter are known for their far smaller sizes. While still being large in their own right, they aren't as large as their much larger relatives, only growing up to 3 meters in length. They lack trunks are are frequently preyed upon by predators. However, they are able to burrow, using their strong hand claws to dig. Today, they are now commonly kept by Cerosaipens for their eggs, which are highly prized amongst them (A single egg can cost up to 50 entos). The Altatruncus are far larger, with their largest member being the Longuscollidon. While their size is usually their catch, they also have gigantic sails and spines. Most of them run down to the end of the neck, with some spines here and there. While the smaller species can be preyed upon by other predators, the largest have no predators. They are mostly solitary, with juveniles sometimes gathering into small creches for protection.
If you don't know what entos is, those are the Cerosaipens' currency which are mentioned here: https://scratch.mit.edu/projects/609481992/