Description: English: Meridolum middenense empty snail shell. She-oak forest on Resolute Track, above Resolute Beach, Ku-ring-gai Chase National Park, Australia. Shell around 25 mm long. Rock is right on the border between Narrabeen Group Sandstone & Hawkesbury Sandstone. (Thin) leaves on the left are from Allocasuarina torulosa, this forest is around 15 metres tall, east facing in a relatively high rainfall area. Date: 23 March 2011. Source: Own work. Author:
Poyt448 Peter Woodard.