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New material of scalidophoran worms in Orsten-type preservation from the Cambrian Fortunian Stage of South China

Zhang, Huaqiao; Maas, Andreas and Waloszek, DIeter LU (2018) In Journal of Paleontology 92(1). p.14-25
Abstract

Scalidophoran worms diversified in the Cambrian Fortunian, as indicated by recent reports from this stage, with two described species and two more unnamed forms exclusively from Orsten-type Lagerstätten yielding three-dimensionally phosphatized fossils. Here, we report new material of scalidophoran worms in Orsten-type preservation from the Cambrian Fortunian Xinli section in northern Sichuan Province, South China. At least five forms of scalidophoran worms were recovered from this location, including Eokinorhynchus rarus Zhang et al., 2015 and four unnamed taxa-Forms A, B, C, and D. Co-occurring disassociated spinose small shelly fossils might also be isolated cuticular elements of these early scalidophoran worms. The ontogeny of... (More)

Scalidophoran worms diversified in the Cambrian Fortunian, as indicated by recent reports from this stage, with two described species and two more unnamed forms exclusively from Orsten-type Lagerstätten yielding three-dimensionally phosphatized fossils. Here, we report new material of scalidophoran worms in Orsten-type preservation from the Cambrian Fortunian Xinli section in northern Sichuan Province, South China. At least five forms of scalidophoran worms were recovered from this location, including Eokinorhynchus rarus Zhang et al., 2015 and four unnamed taxa-Forms A, B, C, and D. Co-occurring disassociated spinose small shelly fossils might also be isolated cuticular elements of these early scalidophoran worms. The ontogeny of Eokinorhynchus rarus is revised. Forms A, C, and D are assigned to total-group Scalidophora to indicate their uncertain positions within Scalidophora, while Form B might be a close relative of Eokinorhynchus rarus. The current work highlights the significance of Orsten-type Lagerstätten in uncovering the morphology, ontogeny, and taxonomy of early Scalidophora and Cycloneuralia, made particularly available by the new finds in China.

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publication status
published
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in
Journal of Paleontology
volume
92
issue
1
pages
12 pages
publisher
Paleontological Society
external identifiers
  • scopus:85041509080
ISSN
0022-3360
DOI
10.1017/jpa.2017.39
language
English
LU publication?
yes
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21fafedf-b87f-424e-869f-7c07ebb30159
date added to LUP
2018-02-21 14:47:31
date last changed
2018-06-24 05:20:37
@article{21fafedf-b87f-424e-869f-7c07ebb30159,
  abstract     = {<p>Scalidophoran worms diversified in the Cambrian Fortunian, as indicated by recent reports from this stage, with two described species and two more unnamed forms exclusively from Orsten-type Lagerstätten yielding three-dimensionally phosphatized fossils. Here, we report new material of scalidophoran worms in Orsten-type preservation from the Cambrian Fortunian Xinli section in northern Sichuan Province, South China. At least five forms of scalidophoran worms were recovered from this location, including Eokinorhynchus rarus Zhang et al., 2015 and four unnamed taxa-Forms A, B, C, and D. Co-occurring disassociated spinose small shelly fossils might also be isolated cuticular elements of these early scalidophoran worms. The ontogeny of Eokinorhynchus rarus is revised. Forms A, C, and D are assigned to total-group Scalidophora to indicate their uncertain positions within Scalidophora, while Form B might be a close relative of Eokinorhynchus rarus. The current work highlights the significance of Orsten-type Lagerstätten in uncovering the morphology, ontogeny, and taxonomy of early Scalidophora and Cycloneuralia, made particularly available by the new finds in China.</p>},
  author       = {Zhang, Huaqiao and Maas, Andreas and Waloszek, DIeter},
  issn         = {0022-3360},
  language     = {eng},
  month        = {01},
  number       = {1},
  pages        = {14--25},
  publisher    = {Paleontological Society},
  series       = {Journal of Paleontology},
  title        = {New material of scalidophoran worms in Orsten-type preservation from the Cambrian Fortunian Stage of South China},
  url          = {http://dx.doi.org/10.1017/jpa.2017.39},
  volume       = {92},
  year         = {2018},
}