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Willwerathia is a
genus of
Devonian arthropod. It is
sometimes classified as synziphosurine, a
paraphyletic group of
horseshoe crab-like
fossil chelicerate...
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Xiphosura Latreille, 1802 †Maldybulakia
Tesakov & Alekseev, 1998 (Devonian) †
Willwerathia Størmer, 1969 (Devonian) †Kasibelinuridae Pickett, 1993 (Middle Devonian...
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opisthosomal segmentation across synziphosurines.
While Weinbergina and
Willwerathia being exceptionally large, most
synziphosurines are
small arthropods...
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Willwerathia Xiphosurida...
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morphological similarity with the
synziphosurine Willwerathia. In 2020,
morphology of
Willwerathia is
compared to
Cambrian artiopod Falcatamacaris. Since...
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Willwerathia Xiphosurida ...
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Willwerathia Xiphosurida...
- †
Willwerathia Xiphosurida...
- diensti,
Pruemopterus salgadoi,
Erieopterus sp.),
possible xiphosuran (
Willwerathia),
terrestrial arachnids (Devonotarbus hombachensis,
Xenarachne willwerathensis)...
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spider is
Palaeoisopus problematicus with
legspan about 32 cm (13 in).
Willwerathia reached 9 cm (3.5 in) in
carapace width and was the
largest species of...
