Extinct fossil plant coal age Mariopteris climber vine seed fern in siderite for Sale

Extinct fossil plant coal age Mariopteris climber vine seed fern in siderite For Sale

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Extinct fossil plant coal age Mariopteris climber vine seed fern in siderite :
$32.00

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, sopleasewait with payment after purchase-I will send You a combine invoice. Usually, it will be cost of shipping the heaviest item.

Specimen: Classic coal age liana like extinct fossil plant - seed fernMariopteris muricata( BRONGNIART ) ZEILLER 1886

Locality: All detailed and accurate data will be provided with the specimen

Age: ca. 310 Mya,

Matrixdimensions:ca. 9,5 x 5,5 x 5,0 cm ( white square on pictures is 1,0 x 1,0 cm )

Description:

Nice specimen of classic , partialy pyritised coal age fossil plant - fossil fernMariopteris muricata( BRONGNIART ) ZEILLER 1886- climber vine, liana-like seedfern fossil frond !

Mariopteris muricata( BRONGNIART ) ZEILLER 1886is a Mariopterids species.In thisspecies the secondary pinnae are linear-lanceolate, alternate and oblique tothe rachis. The pinnules are confluent at the base and subtriangular. Thelateral veins straight, generally immersed and hidden, once near the base, withthe 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 compactfronds which are bifurcated twice.

The pinnules aretongue-shaped to assymmetrically triangular in outline with a distinct basallobe (at least the pinnules closest to the main axes). Although it is clearthat most mariopterids are seed ferns, their natural affinity remains unclear.Karinopterids obviously had a climbing growth habit. This species, like otherKarinopteroids and Mariopteroids, had a vine- to liana-like growth habit andclimbed with specialized climber hooks.

Systematic:

Division: Tracheophyta(Sphenopsida)

Kingdom: ChlorobiotaPlantae

Family: Mariopteridaceae

Genus: Mariopteris (Zeiller 1878)

Species: Mariopteris muricata( BRONGNIART ) ZEILLER 1886