Description: Stigmaria reticulata Goeppert 1841 - rarer species lycopod Lepidodendron root Locality: Poland, GZW Upper Silesia Coal Basin – Czerwionka near RybnikCoalmine: KWK ” Debiensko ” - closed coal mineStratigraphy: Upper Carboniferous, Middle Pennsylvanian / Westphalian B/C - Orzeskie BedsAge: ca. 305 - 310 myoMatrix dimensions: ca. 9,0 x 7,0 x 1,5 cm Stigmaria are a type of branching tree root fossil found in Carboniferous rocks. They were the roots of coal forest lycopsid trees such as Sigillaria and Lepidodendron.Stigmaria is the generic name given to fossil root casts of various tree species of the Pennsylvanian Period, regardless of the form genera and species. The round nodes on the surface of stigmaria are scars where ribbon-like rootlets were once attached and arranged radially about stigmaria like the bristles of a bottle brush. A flattened vascular tube is frequently visible on the end of stigmaria, located just off center of the axis of the root and running longitudinally down its length, which provided fluids and perhaps nutrients to the main tree in life.Until now well understood are three species of Stigmaria: Stigmaria ficoides, Stigmaria rugulosa and Stigmaria reticulata.Systematic:Division: Tracheophyta (Lycoposida)Class: LycopodinaeOrder: LycophodialesFamily: SigillariaceaeGenus: Stigmaria Species: Stigmaria reticulata Goeppert 1841
Price: 12 USD
Location: Orzesze
End Time: 2024-11-24T12:27:30.000Z
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