<正>Objective Fossil microcoryphids are scarce.Silverstri(1912)described two genera and eight species of Machilidae or Machiloidae incertae sedis from Baltic am
<正>Objective The Jilin-Liaoning area has widely spread Meso-and Neoproterozoic sediments and is always a focused area for researching Precambrian geology.Previ
The study area is located in the east Tabas Block in Central Iran. Facies analysis of the Qal'eh Dokhtar Formation(middle Callovian to late Oxfordian) was c