Английская Википедия:Acaste (trilobite)
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Шаблон:Italic title Шаблон:Taxobox
Acaste is a genus of extinct trilobite of the order Phacopida which lived throughout the Silurian period (Wenlock Group).[1] Though many species had been included, it now has only one species, Acaste downingiae.[2] It is characterized by a convex dorsal surface, an absence of spines, a shortening of the head-shield and a general rounding off of all angles.[3]
Etymology
- A. lokii is named after Loki, the Norse god of mischief. Loki tricked the blind god Höðr to kill the god of beauty Baldr, and so started the demise of the world (or Ragnarök). This epithet was chosen by Edgecombe because it is based on the cephalon of A. longisulcata, which has turned out to be a mixed collection. The pygidium of A. longisulcata belongs to a Phacopoidea.[1]
- A. zerinae is named in honor of Zerina Edgecombe, the wife of the species author.[1]
Taxonomy
Species previously assigned to Acaste
Some species originally designated to Acaste have now been reassigned to other genera.[4]
- A. birminghamensis = Llandovacaste birminghamensis[1]
- A. constrictus = Acastoides constricta
- A. cordobesa = Pennaia verneuili[1]
- A. henni = Acastoides henni
- A. verneuili = Calmonia terrarocenai[1]
See also
References
- ↑ 1,0 1,1 1,2 1,3 1,4 1,5 Шаблон:Cite journal
- ↑ British Palaeozoic Fossils - Natural History Museum 4th edition 1975. Plate 29. Шаблон:ISBN.
- ↑ H H Swinnerton - Outlines of Palaeontology, Edward Arnold (Publishers) Ltd, 1972 (p. 247) Шаблон:ISBN.
- ↑ Шаблон:Cite book
Категории:
- Английская Википедия
- Acastidae
- Phacopida genera
- Silurian trilobites
- Trilobites of Africa
- Trilobites of Oceania
- Silurian first appearances
- Early Devonian genus extinctions
- Wenlock series fossils
- Страницы, где используется шаблон "Навигационная таблица/Телепорт"
- Страницы с телепортом
- Википедия
- Статья из Википедии
- Статья из Английской Википедии
