| This layer appears to correspond to the Westphalian-Stephanian Series boundary of western Europe and the Desmoinesian-Missourian boundary in the midcontinent of North America. |
| Midcontinent operates the largest and most resilient network in the region, a 4600 fiber-mile network delivering services to urban and rural areas within the three states. |
| Annual harvest of the midcontinent population peaked at one million geese only twice shortly after the special measures. |
| Midcontinent selected Infinera for the speed, flexibility, and simplicity of Infinera Digital Optical Networks. |
| Coeval cyclothems in the western midcontinent have better development of the marine portion of the sequence with fewer and thinner coals. |
| A recent study suggests that decade-long efforts to reduce the midcontinent population of lesser snow geese did not achieve desired effects. |
