Museum quality Arthropleura fossil segment largest know land arthropod millipede

Description

My specimens are genuine and will be delivered with a "Certificate of authenticity, age and origin" and scientific papers allowing  identification !
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Specimen:
Very
rare , big museum quality
specimen of giant coal age Carboniferous
millipede
Arthropleura armata
Jordan
1854
- Arthropleura
armored body segment !
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 14,0 x 9,0 x 1,2 cm ( white square is 1,0 x 1,0 cm)
Description:
Very
rare, from old collection museum quality big
specimen of giant coal age , Carboniferous
millipede
Arthropleura armata
Jordan 1854
- museum quality
armored  body segment
of largest know giant land arthropod !
Arthropleuridea was a class of arthropods that flourished during the Carboniferous period. Members are defined by diplosomy, paranotal tergal lobes separated from the axis by a suture, and by sclerotized plates buttressing the leg insertions. Despite their unique features, recent phylogenetic research suggests that Arthropleuridea may be included among millipedes.
The class contains three recognized orders, each with a single genus. Arthropleurids had about 30 pairs of legs, whose tracks have been found in the Joggins deposit in Nova Scotia, Canada.
Arthropleuridea is most famous for order Arthropleurida. With the genus
Arthropleura
over 2 meters in length, arthropleurids are among the largest arthropods ever to have lived. The lack of large terrestrial vertebrate predators and the highly oxygenic atmosphere at that time probably enabled them to grow so large. Arthropleurids lived in the moist coal swamps that were common at the time and may have burrowed in the undergrowth. They were either herbivores or detritivores. Besides their size, their most distinguishing features were their legs with eight segments (as many as 30 pairs) and extremely tough exoskeletons. There is no evidence of spiracles, so the animals must have used lungs or gills for respiration. Arthropleurids became extinct as the climate became drier and the coal swamps dried out. Tracks from
Arthropleura
up to 50 cm wide have been found at Joggins, Nova Scotia. Most arthropleurids are thought to have been terrestrial, although, without any known respiratory structure, terrestriality is assumed only by analogy to modern arthropods. Early forms, however, including order Eoarthropleurida, appear to have been aquatic. For this reason, some question Arthropleuridea's inclusion among millipedes because no modern aquatic myriapods are known. Eoarthropleurida has been found from the Upper Silurian through the Upper Devonian of Europe and North America.
Systematic:
Kingdom:      Animalia
Phylum:        Arthropoda
Subphylum:  Myriapoda
Class:
Arthropleuridea
Order:          Arthropleurida
Family:         Arthropleuridae
Genus:
Arthropleura
Species:
Arthropleura
armata
Jordan 1854