[1] Eldeceeon is thought to be closely related to embolomeres, but it has several distinguishing features including long limbs and a short trunk.

The redescription supported affinities with Silvanerpeton, reconstructed a skull with larger eyes and a shorter snout, and emphasized potential correlations for an enlarge puboischiofemoralis internus 2 muscle.

[3] In the East Kirkton Quarry, fossils of Eldeceeon were found alongside another reptiliomorph called Silvanerpeton.

Unlike most embolomeres, which could grow over a meter long, Eldeceeon has a much smaller body length of 35 centimetres (1.15 ft).

[5] The ribs of Eldeceeon are restricted to the front half of the spine, a characteristic that is not present in any tetrapods (four-limbed vertebrates) except mammals and their relatives.