Published December 15, 2022 | Version v1
Taxonomic treatment Open

Bailiella Matthew 1885

  • 1. Institut für Geowissenschaften, Universität Heidelberg, Im Neuenheimer Feld 234, 69120 Heidelberg (Germany) and Institut für Geologie, Mineralogie und Geophysik, Ruhr-Universität Bochum, 44801 Bochum (Germany)
  • 2. Institut für Geowissenschaften, Universität Heidelberg, Im Neuenheimer Feld 234, 69120 Heidelberg (Germany)

Description

Genus Bailiella Matthew, 1885

Bailiella Matthew, 1885: 124. —

Type species: Conocephalites baileyi Hartt in Dawson, 1868, designated by Miller (1889).

Tangshiella Hupé, 1953: 194. —

Type species: Bailiella ulrichi Resser & Endo, 1937, by original designation (Hupé 1953).

DIAGNOSIS. — Cephalon semicircular; fixed cheeks continuous in front of glabella; border furrow extends around cranidium; surface ornamented (based on Resser 1936; Lake 1940, with modifications).

REMARKS

Hupé (1953) introduced the genus Tangshiella without providing a description or discussion. The type species is Bailiella ulrichi Resser & Endo, 1937. The diagnosis of B. ulrichi matches that of the genus Bailiella; therefore, the genus Tangshiella is here considered to be a synonym of Bailiella. The genus is closely related to Conocoryphe Hawle & Corda, 1847, but differs in having a longer preglabellar area and the absence of furrows (Resser 1936). The taxonomic distinction from Bailiaspis Resser, 1936, is less distinct and presently unsolved (Resser 1936; Álvaro & Vizcaïno 2018). Kim et al. (2002) regarded the genus Bailiella as paraphyletic and did not provide a diagnosis. Clearly, the genus requires revision. Bailiella is here treated as genus separated from related genera.

Notes

Published as part of Unger, Tanja, Hildenbrand, Anne, Stinnesbeck, Wolfgang & Austermann, Gregor, 2022, Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada, pp. 1051-1087 in Geodiversitas 44 (33) on page 1063, DOI: 10.5252/geodiversitas2022v44a33, http://zenodo.org/record/7477657

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Linked records

Additional details

Biodiversity

References

  • MATTHEW G. F. 1885. - Illustrations of the Fauna of the St. John Group continued: on the Conocoryphea with futher remarks on Paradoxides. Proceedings and Transactions of the Royal Society of Canada for the Year 1884 2: 99 - 124. https: // www. biodiversitylibrary. org / page / 10764255
  • DAWSON J. W. 1868. - Acadian Heology. The Geological Structure, Organic remains, and Mineral resources of Nova Scotia, New Brunswick, and Prince Edward Island. Second Edition. MacMillan and Company, London, 694 p. https: // doi. org / 10.5962 / bhl. title. 18064
  • MILLER S. A. 1889. - North American Geology and Paleontology for the Use of Amateurs, Students, and Scientists. Western Methodist book concern, Cincinnati, Ohio, 793 p. https: // doi. org / 10.5962 / bhl. title. 28778
  • HUPE P. 1953. - Classe des Trilobites, in PIVETEAU J. (ed.), Traite de paleontologie. Tome III. Les forms ultimes d'Invertebres: morphologie et evolution. Onychophores, Arthropodes, Echniodermes, Stomocordes. Mason et Cie, Paris: 44 - 246.
  • RESSER C. E. & ENDO R. 1937. - Description of the fossils, Part 2, in ENDO R. & RESSER C. E. (eds), The Sinian and Cambrian Formations and Fossils of Southern Manchoukuo. Educational Institute South Manchuria Ry. Co., Mukden: 103 - 301.
  • RESSER C. E. 1936. - Second contribution to nomenclature of Cambrian trilobites. Smithsonian Miscellaneous Collections 95 (4): 1 - 29. https: // www. biodiversitylibrary. org / page / 24739325
  • LAKE P. 1940. - Monograph of the British Cambrian Trilobites, Part Xii. Monograph of the Palaeontographical Society, London 94: 273 - 306. https: // doi. org / 10.1080 / 02693445.1940.12035665
  • HAWLE I. & CORDA A. J. C. 1847. - Prodrom einer Monographie der bohmischen Trilobiten. J. G. Calve'sche Buchhandlung, Prague, 176 p. (Reprinted in 1848 in Abhandlungen der Koniglichen Bohmischen Gesellschaft der Wissenschaften 5 (2): 117 - 292). https: // www. biodiversitylibrary. org / page / 45618120
  • ALVARO J. J. & VIZCAINO D. 2018. - The Furongian break-up (rift / drift) unconformity in the central Anti-Atlas, Morocco. Journal of Iberian Geology 44: 567 - 587. https: // doi. org / 10.1007 / s 41513 - 018 - 0066 - 2
  • KIM D. H., WESTROP S. R. & LANDING E. 2002. - Middle Cambrian (Acadian series) conocoryphid and paradoxidid trilobites from the upper Chamberlain's Brook Formation, Newfoundland and New Brunswick. Journal of Paleontology 76 (5): 822 - 842. https: // doi. org / cgxnvt