-40%

Very rare extinct fossil plant species Mariopteris daviesi - climber vine fern

$ 11.61

Availability: 16 in stock
  • Condition: New
  • Mazon Creek like: Burmite like
  • All returns accepted: Returns Accepted
  • Modified Item: No
  • Refund will be given as: Money back or replacement (buyer's choice)
  • Restocking Fee: No
  • Return shipping will be paid by: Buyer
  • Item must be returned within: 30 Days
  • Mazon Creek age: Pre burmite

    Description

    My specimens are genuine and will be delivered with a "Certificate of authenticity, age and origin"  and scientific papers allowing to plant identification !!!
    I combine shipping costs.
    Each item is different, so please wait with payment after purchase -
    I will send You a combine invoice.
    Usually, it will be cost of shipping the heaviest item.
    Specimen:
    Classic c
    oal age , liana like very rare extinct seed fern species:
    Mariopteris daviesi
    KIDSTON
    Locality:
    All detailed and accurate data will be provided with the specimen
    Stratigraphy:
    Upper Carboniferous, Middle Pennsylvanian - Westphalian B
    Age:
    ca. 310 Mya,
    Matrix dimensions:
    ca. 5,5 x 5,0 x 2,0 cm ( white square on pictures is 1,0 x 1,0 cm )
    Description:
    Specimen of small fossil fern
    Mariopteris daviesi
    KIDSTON
    - climber vine, liana-like seed fern fossil frond !
    Mariopteris daviesi
    KIDSTON
    is uncommon Mariopterids species. In this species the secondary pinnae are linear-lanceolate, alternate and oblique to the rachis. The pinnules are confluent at the base and subtriangular. The lateral veins straight, generally immersed and hidden, once near the base, with the lower positioned ones often forking again.
    Mariopteridaceae
    seed ferns (Pteridosperms) group contains two genera, Marioptris and Karinopteris.
    Mariopteris
    is a form genus for relatively small compact fronds which are bifurcated twice.
    The pinnules are tongue-shaped to assymmetrically triangular in outline with a distinct basal lobe (at least the pinnules closest to the main axes). Although it is clear that most mariopterids are seed ferns, their natural affinity remains unclear. Karinopterids obviously had a climbing growth habit. This species, like other Karinopteroids and Mariopteroids, had a vine- to liana-like growth habit and climbed with specialized climber hooks.
    Systematic:
    Division:
    Tracheophyta (Sphenopsida)
    Kingdom:               Chlorobiota
    Plantae
    Family:
    Mariopteridaceae
    Genus:
    Mariopteris (Zeiller 1878)
    Species:
    Mariopteris daviesi
    KIDSTON