Guide to Meridion alansmithii
Credit: David Burge
- Valves elongate, linear-clavate
- Head pole attenuated
- Rimoportula present, near widest part of valve
- Sternum narrow, faint
- Costae present
Valves are elongated and linear-clavate. The head pole is attenuated and subrostrate. A single rimoportula is located distal from the head pole, near the widest part of the valve. Costae mostly primary, with occasional secondary costa. The sternum is narrow and may be difficult to distinguish.