Linked from
The 14 pages that link to Mesoderm, each with the reason it gives.
NotochordNarrower topic: The notochord is a specialized derivative of this germ layer.
Adrenal glandNarrower topic: The adrenal cortex develops from mesodermal tissue.
CoelomRelated: Mesoderm completely lines the coelom and forms much of its surrounding tissue.
AcoelomateNarrower topic: Mesoderm fills the space between the gut and body wall in acoelomates.