| SECTION | Item or Ref ID | Value or text | 
| Identification | 
| TA code | A02.1.00.053 | 
| Entity ID number | THA:357 | 
| FMA identifier | FMA:53129 | 
| Type of entity | Immaterial entity | 
| Language | 
| TA98 Latin preferred term | basis cranii externa | 
| TA98 English equivalent | external surface of cranial base | 
| Properties | 
|  Immaterial | This entity is an immaterial object (no mass). | 
| Notes | 
| TA98 Hierarchy | 
| A01.0.00.000 | 
| A02.0.00.000 | 
| A02.0.00.009 | 
| A02.1.00.001 | 
| A02.1.00.044 | 
| A02.1.00.053 | 
                basis cranii externa
               | 
| A02.1.00.054 | |
| A02.1.00.055 | |
| A02.1.00.056 | |
| A02.1.00.057 | |
| A02.1.00.058 | |
| A02.1.00.059 | |
| A02.1.00.060 | |
| A02.1.00.061 | |
| A02.1.00.062 | |
| A02.1.00.063 | |
| A02.1.00.064 | |
| A02.1.00.065 | |
| A02.1.00.066 | 
| FMA Taxonomy | 
| FMA:62955 | 
                anatomical entity
               | 
| FMA:61775 | 
                physical anatomical entity
               | 
| FMA:67112 | 
                immaterial physical anatomical entity
               | 
| FMA:24137 | 
                anatomical surface
               | 
| FMA:29859 | 
                surface of organ system subdivision
               | 
| FMA:53129 | 
                external surface of cranial base
               | 
| Date: 29.01.2013 |