on the top mudstone surface covered by volcanic ash, and in Khatyspyt-type preservation the fossils are found in finely laminated to medium-bedded, nodular bituminous limestones. Miaohe-type biota characterizes assemblage of algal macrofossils: Beltanelloides, Mezenia, Sinospongia, Jiuqunaoella, Grypania, Liulingjitaenia, Tawuia, Calyptrina, Cucullus and others. These fossils are of the form of flat organic carbonaceous films; it is shadow left by organic matter of the organism flesh (it is looks like of the Burgess shale type preservation). Trying to relate organisms that are preserved in the two modes is immensely problematic, because they preserve such different parts of organisms; the imprints preserve a casts of the organism's outline, whereas the carbonaceous films display a shadow left by any resistant organic matter. This has made relating the two taphonomic types very difficult: Eoandromeda is one of the few organisms which can convincingly be compared in both taphonomic modes. Such cases of preservation are known also for organisms related to the Anfesta-Albumares-like fossils from the Doushantuo Formation, for Beltanelloides sorichevae from the Lyamtsa Formation of the White Sea area, Russia and Doushantuo Formation, and possible for Cyclomedusa davidi from Perevalok Formation of the Central Urals. See also List of Ediacaran genera References Ediacaran life Incertae sedis Fossils of China