notpop's picture

Fern fossil?

Observed: 31st August 2011 By: notpopnotpop’s reputation in Plantsnotpop’s reputation in Plantsnotpop’s reputation in Plantsnotpop’s reputation in Plants
fern fossil ?
Description:

fossil in sandstone slab in a garden

Identifications
  •  
    Likely ID
    dendritic crystallisation
    Confidence: I'm as sure as I can be.
    ID agreements (): 3 People
    • cabbageleek
      Botanical Society of Britain and Ireland
      Plants expert
    • vburton
      Amateur Entomologists' SocietyBritish Mycological SocietyS159 Neighbourhood Nature - course complete
      vburton’s reputation in Plantsvburton’s reputation in Plantsvburton’s reputation in Plants
    • Peter SkeltonPeter Skelton’s reputation in PlantsPeter Skelton’s reputation in Plants
Species interactions

No interactions present.

Comments

jja28's picture

Fossils in flags

I have some similar fossils in sandstone flags on my patio

Jerry

Tiggrx's picture

I think it is a vein of

I think it is a vein of mineral rather than a fossil, the formation would be called dendritic ("tree like")

Syrphus's picture

I am inclined to think this

I am inclined to think this is non-organic dendritic crystallisation. It is not uncommon to find this sort of thing in Torridonian sandstone - much older than any fern.

M.

TRY

recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.

Peter Skelton's picture

dendritic crystal growth

Yes, that's exactly what it is - probably manganese oxide, which often grows like this over bedding surfaces or along joints (fine fractures in the rock). They can produce some very pretty tree-like patterns,
Peter