''Acastava'' is an extinct genus of
trilobite in the order
Phacopida, from the upper
Pragian
The Pragian is one of three faunal stages in the Early Devonian Epoch. It lasted from 410.8 ± 2.8 million years ago to 407.6 ± 2.8 million years ago. It was preceded by the Lochkovian Stage and followed by the Emsian Stage. The most important La ...
(''A. atavus'') to
Emsian period (both other species listed) of the
Devonian
The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ...
.
References
External links
''Acastava''at the
Paleobiology Database
Acastidae
Devonian trilobites
Fossils of Poland
Fossil taxa described in 1954
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