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Sphenothallus from the Furongian (Cambrian) of Scandinavia

Stewart, Sarah Elizabeth; Clarkson, Euan Neilson Kerr; Ahlgren, John; Ahlberg, Per LU and Schoenemann, Brigitte (2015) In GFF 137(1). p.20-24
Abstract
Sphenothallus, a Palaeozoic genus of uncertain affinity, possibly a hydrozoan, is reported from the Furongian (Cambrian) of Scandinavia. This is the only known occurrence of the genus in Cambrian rocks outside of China, western North America and Bohemia, and also the first report of Sphenothallus in the Cambrian-Ordovician of Baltica. The material is from the upper Furongian (upper Protopeltura and lower Peltura superzones) of Mount Kinnekulle, Vastergotland, south-central Sweden. It consists of elongated, slightly tapering, shiny black phosphatic tubules. Scanning electron microscope photographs confirm paired internal longitudinal thickenings, typical of the genus, on opposite sides of the central lumen. The presence of the Swedish... (More)
Sphenothallus, a Palaeozoic genus of uncertain affinity, possibly a hydrozoan, is reported from the Furongian (Cambrian) of Scandinavia. This is the only known occurrence of the genus in Cambrian rocks outside of China, western North America and Bohemia, and also the first report of Sphenothallus in the Cambrian-Ordovician of Baltica. The material is from the upper Furongian (upper Protopeltura and lower Peltura superzones) of Mount Kinnekulle, Vastergotland, south-central Sweden. It consists of elongated, slightly tapering, shiny black phosphatic tubules. Scanning electron microscope photographs confirm paired internal longitudinal thickenings, typical of the genus, on opposite sides of the central lumen. The presence of the Swedish material in a low-energy, dysoxic facies is consistent with most previous occurrences. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Sweden, Sphenothallus, Cambrian, Vastergotland, Alum Shale Formation, Furongian
in
GFF
volume
137
issue
1
pages
20 - 24
publisher
Geological Society of Sweden
external identifiers
  • wos:000349787800003
  • scopus:84923521093
ISSN
2000-0863
DOI
10.1080/11035897.2014.929173
language
English
LU publication?
yes
id
38ac680a-39fd-4d61-b465-d53049e1cdd9 (old id 5179953)
date added to LUP
2015-03-27 17:06:03
date last changed
2017-03-26 03:14:43
@article{38ac680a-39fd-4d61-b465-d53049e1cdd9,
  abstract     = {Sphenothallus, a Palaeozoic genus of uncertain affinity, possibly a hydrozoan, is reported from the Furongian (Cambrian) of Scandinavia. This is the only known occurrence of the genus in Cambrian rocks outside of China, western North America and Bohemia, and also the first report of Sphenothallus in the Cambrian-Ordovician of Baltica. The material is from the upper Furongian (upper Protopeltura and lower Peltura superzones) of Mount Kinnekulle, Vastergotland, south-central Sweden. It consists of elongated, slightly tapering, shiny black phosphatic tubules. Scanning electron microscope photographs confirm paired internal longitudinal thickenings, typical of the genus, on opposite sides of the central lumen. The presence of the Swedish material in a low-energy, dysoxic facies is consistent with most previous occurrences.},
  author       = {Stewart, Sarah Elizabeth and Clarkson, Euan Neilson Kerr and Ahlgren, John and Ahlberg, Per and Schoenemann, Brigitte},
  issn         = {2000-0863},
  keyword      = {Sweden,Sphenothallus,Cambrian,Vastergotland,Alum Shale Formation,Furongian},
  language     = {eng},
  number       = {1},
  pages        = {20--24},
  publisher    = {Geological Society of Sweden},
  series       = {GFF},
  title        = {Sphenothallus from the Furongian (Cambrian) of Scandinavia},
  url          = {http://dx.doi.org/10.1080/11035897.2014.929173},
  volume       = {137},
  year         = {2015},
}