Contains measurements of specimens of the seed fern Macralethopteris hallei. Both of material collected in 1925, as well as of material collected in 2004 and 2006. Parent item: Measurements of fossil flora from the early Permian sediments from Mengkarang Formation, Jambi, province of Sumatra, Indonesia 4 datasets about measurements of fossil flora from the early Permian sediments from Mengkarang Formation, Jambi, province of Sumatra, Indonesia