Acastocephala
| Acastocephala Temporal range: Silurian
| |
|---|---|
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita |
| Order: | †Phacopida |
| Family: | †Acastidae |
| Genus: | † Shergold, 1966 |
| Species | |
Acastocephala is a genus of trilobites from the middle Silurian, known from the United Kingdom.[2]
Etymology
The name is derived from the genus Acaste and the Ancient Greek κεφαλή (kephalē) "head", indicating the headshield is similar to Acaste.[1]
Taxonomy
Acastocephala may contain the ancestor of Acastava.[1]
Distribution
- Acastocephala macrops occurs in the Middle Silurian of the United Kingdom (Wenlock Shale, Malvern, Worcestershire; Wenlock Limestone, Pen-y-Lan, Cardiff, and Dudley and Ludlow, Ledbury, Hereford).
- Acastocephala dudleyensis has been found in the Middle Silurian of the United Kingdom (Wenlock Limestone, Wren's Nest, Dudley, Worcestershire).[1]
References
- ^ a b c d Shergold, J.H. (1966). "A revision of Acaste downingiae (Murchison) and related trilobites" (PDF). Palaeontology. 9 (2): 183–207. Archived from the original on 2011-07-16.
- ^ "BioLib: Biological library".
External links