Rare Belinurus fossil horseshoe crab in Mazon Creek like paired nodule last one

Description

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Specimen:
Extremely rare fossil horseshoe crab
Belinurus lunatus
Martin 1809
in Mazon Creek like paired nodule from Europe - last one i have !
Locality:
All detailed and accurate data will be provided with the specimen
Stratigraphy:
Upper Carboniferous,
Bashkirian
-
Westphalian A,
Age:
ca. 314 Mya
Nodule size :
ca 3,0 x 2,0 x 1,0 cm
( white square on pictures is 1,0 x 1,0 cm)
Description:
Extremely rare, beautiful specimen of extremely rare
order & species of horseshoe crab:
Belinurus lunatus
Martin 1809
- Xiphosurida, Limulina, preserved in Mazon Creek like ironstone nodule half from Europe. Specimen is almost complete - only a small piece of ophistosoma and telson is missing.
This is a rare opportunity to get something other and much rarer than Euproops danae ! Horseshoe crabs resemble crustaceans, but belong to a separate subphylum, Chelicerata, and are closely related to eurypterids and arachnids. The earliest horseshoe crab fossils are found in strata from the late Ordovician period, roughly 450 Mya.
Horseshoe crabs are marine arthropods of the family Limulidae and order Xiphosura or Xiphosurida, that live primarily in and around shallow ocean waters on soft sandy or muddy bottoms. They occasionally come onto shore to mate. They are commonly used as bait and in fertilizer. In recent years, a decline in the population has occurred as a consequence of coastal habitat destruction in Japan and overharvesting along the east coast of North America. Tetrodotoxin may be present in the roe of species inhabiting the waters of Thailand.
Because of their origin 450 million years ago (Mya), horseshoe crabs are considered living fossils.