Lyginopteridaceae is an extinct

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

of plants (

Pteridospermatophyta Pteridospermatophyta, also called pteridosperms or seed ferns, are a polyphyletic grouping of extinct seed-producing plants. The earliest fossil evidence for plants of this type are the lyginopterids of late Devonian age. They flourished partic ...

) in North America and European Carboniferous coal measures.

Description

Lyginopteridaceae were shrubs and vines with radiospermic ovules containing a lagenostome. They consisted of forms with monostelic stem petioles usually with single strand and small seeds. Family members include Lyginopteris and Heterangium.

References

External links

* * Pteridospermatophyta Carboniferous plants Prehistoric plant families Carboniferous first appearances Carboniferous extinctions {{carboniferous-plant-stub