| Name: | margin | 
|---|---|
| Synonyms: | |
| Definition: | Embryonic structure, the edge of the blastoderm. | 
| Ontology: | Anatomy Ontology [ZFA:0000038] | 
| Name: | presumptive endoderm | 
|---|---|
| Synonyms: | |
| Definition: | Presumptive structure fated to become endoderm. Determined by fate mapping. | 
| Ontology: | Anatomy Ontology [ZFA:0000416] |