This scientific monograph reexamines the order Scorpionida, introducing new families and genera and assigning several fossils to refined groups. It blends careful morphological description with careful comparisons to related forms, helping readers understand ancient arachnid diversity and evolution.

The book presents new taxonomic concepts, including the establishment of a new family and multiple new taxa. It features precise descriptions of the coxosternal region, sternum shapes, and maxillary lobes, along with illustrations and measurements that support its classifications. Readers will find a methodical approach to distinguishing similar fossils, based on preserved features such as the arrangement of walking-leg bases, the structure of abdominal plates, and the form of the pectines and combs.
What you’ll experience

Formal descriptions of fossil scorpions, with holotypes and type specifics noted.
Explicit comparisons that explain how certain fossils differ from similar forms.
Information on geological ranges and the historical context of specimens.
Illustrations and measurements that clarify key anatomical features.

Ideal for readers of paleontology reference works, fossil arthropod researchers, and anyone studying the history of scorpions and related groups. This edition serves as a detailed resource for taxonomy, morphology, and the evolutionary narrative of ancient scorpions.

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