Stratigraphy
Ludfordian
Belongs toLudlow
Typechronostratigraphy
RankStage
Original ranklade
Scopeglobal
Statusformal standard
Age top (Ma)423
Age base (Ma)425.6
Date added2003-04-02
Date changed2022-12-28
Quick search
About
News
Browse Geocollections
Localities
Sites
Drillcores
Samples
Analyses
Analytical data
Datasets
Taxa
Stratigraphy
Photo Archive
Specimens
Preparations
Areas
Other e-services
Geocollections
Geoscience Literature
Geology of Estonia
Geoloogiafond
Baltoscandian Fossils
Minerals and Rocks
Stratigraphy
Land Board Data
SARV-DOI
TURBA
GeoCASe
EUROCORE
SARV Workbench
SARV Public API
Partners
All materials in the portal are mostly for free usage according to CC BY-SA licence, unless indicated otherwise. Portal is part of NATARC national research infrastructure and geoscience data platform SARV, hosted by TalTech cloud. Built using Nuxt.js, source code available on GitHub.