Dactyliocerassandstein Formation: Difference between revisions

→‎Plantae: Ce, fmt, links, alt txt
m (Correcting spelling: apperance->appearance)
(→‎Plantae: Ce, fmt, links, alt txt)
 
===Plantae===
A greatlarge amountnumber of wood fragments of wood have been reportednoted, but nevernot yet studied.<ref name=Ammon/><ref name=Putzer/><ref name=Bauberger/>
{| class="wikitable sortable"
|-
! Material
! Notes
! ImagesImage
|-
|style="background:#D1FFCF;" |
* Kelheim
|style="background:#D1FFCF;" |
*Bifrons
|style="background:#D1FFCF;" |
*Fragmentary [[Glossary of botanical terms#Axis|axis]] compressions with preserved leaves
|style="background:#D1FFCF;" |
Affinities with [[Araucariaceae]] or [[Cheirolepidiaceae]] insidewithin [[Pinales]]. ''Pagiophyllum araucarinum'' predominates among the two types of leafy coniferous branches thatwhich have becomebeen knownrecovered from the Posidonia. However, there is no indication whether this fact reflects their respective share in the vegetation of the delivery areaShale. ''Cheirolepidiaceae'' Pollenpollen is the formation's most abundant and diverse found on the formation, what is correlatedcorrelating with the abundance of this genus. OtherAnother factor that putsplacing local ''Pagiophyllum'' onin ''Cheirolepidiaceae'' iswas the dominance of an arid climate, the preferred forby this type of conifersconifer.
|style="background:#D1FFCF;" |
[[File:Pagiophyllum sp. - Naturhistorisches Museum, Braunschweig, Germany - DSC05070 cropped.jpg|thumbalt=Small conifer branch|center|155px]]
|-
|style="background:#D1FFCF;" |
''[[Widdringtonites]]''<ref name=Ammon/><ref name=Putzer/><ref name=Bauberger/>
|style="background:#D1FFCF;" |
*''Widdringtonites liasinus''
|style="background:#D1FFCF;" |
* Irlbach
* Kelheim
|style="background:#D1FFCF;" |
*Bifrons
|style="background:#D1FFCF;" |
*Fragmentary axis compressions with preserved leaves
|style="background:#D1FFCF;" |
A possiblePossible ancestral member of the [[Callitroideae]] insidewithin [[Cupressaceae]]. Was originallyOriginally related to the genus "[[Quasisequoia]]" couttsiae, as a sister taxataxon to [[Sequoia jeholensis]]., Thethe leaves of this genus however resemble the modern African conifer [[Widdringtonia]]. ThereStudies studies suggestingsuggest affinities with large modern redwoods or with the modern genus [[Fitzroya cupressoides]]. ButBoth both Generagenera are relatedlinked withto relatively humid ecosystems, while however; ''Widdringtonites'' is known from an Arid setting, (like ''Widdringtonia'') are found in arid settings, so relationshipsa relationship with thisthe lastlatter one areis more probablylikely.
|style="background:#D1FFCF;" |
[[File:Widdringtonites liasinus.JPG|thumb|centeralt=Widdringtonite fossil|155px]]
|-
|style="background:#D1FFCF;" |
* Kelheim
|style="background:#D1FFCF;" |
*Bifrons
|style="background:#D1FFCF;" |
*Leaflets
|style="background:#D1FFCF;" |
A member of [[Williamsoniaceae]] insidewithin [[Bennettitales]]., Itit has been interpretedidentified as a [[cycad]] in the family [[Cycadaceae]] or a [[Bennettitales|Bennettitalean]] plant. Leaflets somewhat removed,are oval-oblong, a littleslightly narrower near the base, rounded at the tip, with [[Leaf#Veins|nerves]] partially diverging from the base towards the edge. It was assigned to ''[[Pterophyllum]] oblongifolium'' and on the genus ''Glossozamites''. This genus was the leaf of arboreal Bennetites, similar in appearance to the modern [[Encephalartos woodii]], with leaves nearly identical to the modern [[Zamia furfuracea]].
|style="background:#D1FFCF;" |
[[File:Zamites mandelslohi.jpg|thumbalt=Zamites mandelslohi fossil leaf stem, with many leaflets|center|155px]]
|-
|}