Acastoides

Acastoides is an extinct genus of trilobite that lived during the Silurian and Devonian. It has been found in Bolivia, France, Morocco, Poland, Turkey and the United Kingdom.

Acastoides
Temporal range: 428–392 Ma Middle Silurian (Wenlock) to Devonian (?Eifelian)
Acastoides zguilmensis, Devonian, Morocco.
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Trilobita
Order:
Phacopida
Suborder:
Phacopina
Superfamily:
Acastoidea
Family:
Acastidae
Genus:
Acastoides

Delo, 1935
Species
  • A. henni (R. Richter, 1916) (type) = Acaste henni
  • A. constricta (Salter, 1864) synonyms Phacops (Acaste) downingiae constrictus, P. constrictus, Acaste (Acastoides) constrictus[1]
  • A. acutilobata (Knod, 1908)
  • A. gamonedensis
  • A. haddadi Chatterton, Fortey, Brett, Gibb & McKellar, 2006
  • A. insolitus Wolfart, 1968
  • A. maura Alberti, 1969
  • A. paeckelmanni R. Richter & E. Richter, 1939
  • A. poschmanni Basse & Müller, 2016[2]
  • A. zguilmensis Chatterton, Fortey, Brett, Gibb & McKellar, 2006

Distribution
  • A. constricta is found in the Silurian of the United Kingdom (Wenlock, Woolhope Shale, Worcestershire, Malvern).[3]

Taxonomy

Species previously assigned to Acastoides
  • A. verneuili = Calmonia terrarocenai[4]
gollark: (most of the cheap ones are SMR)
gollark: Backups are to a 5-year-old 1TB laptop disk because I cannot be bothered to order a new actual NAS disk and they're quite hard to attain now anyway.
gollark: If stuff comes up in the wrong order it breaks horribly, but it somehow always avoids doing that.
gollark: I have a custom 500-line Python script which works as a webserver, HTTP client for 5 different things, and an IRC bot simultaneously.
gollark: Even the dynamic DNS thing, which just `curl`s every 5 minutes to a specific URL, broke for a few hours until I fixed it by... restarting it? And I have no idea why.

See also
  • List of trilobites

References
  1. Sherwood, J.H. (1966). "A Revision of Acaste downingiae (Murchinson) and related trilobites" (PDF). Palaeontology. 9 (2): 183–207. Archived from the original (PDF) on 2011-07-16.
  2. Martin Basse; Peter Müller (2016). "Trilobiten aus dem Ober-Emsium und frühen Eifelium der südlichen Lahnmulde (Rupbach-Schiefer, Leun-Schiefer und Ballersbach-Kalk)". Abhandlungen der Senckenberg Gesellschaft für Naturforschung. 572: 1–329. ISBN 978-3-510-61407-3.
  3. "42 (Acastoides constricta)". The Barber Institute of Fine Arts, the Lapworth Museum of Geology and the University of Birmingham Collections. Retrieved 17 March 2013.
  4. Edgecombe, G.D. (1993). "Silurian Acastacean trilobites of the Americas" (PDF). Journal of Paleontology. 67 (4): 535–548.


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