| The international community of taxonomists and systematists are reconstructing the great tree of life. |
| Few mollusk or crayfish biologists are systematists and taxonomists, making it very difficult to know if our inventories of understudied groups reflect natural diversity. |
| Systematists have described over 80 species, including two cultivated species, C. arabica L. and C. canephora Pierre. |
| Even those who are systematists usually specialize in no more than a few families within an order. |
| Together various geneticists, systematists, paleontologists, embryologists, and botanists forged what came to be called the modern or evolutionary synthesis. |
| By some systematists this small group of moths is treated as a subfamily of the geometrid. |
