Abstract
A new genus and species of cyathaspid heterostracan, Capitaspis giblingi, gen. et sp. nov., is described from the Late Silurian (Pridolian) Upper Member of the Somerset Island Formation, Northwest Territories, Canada. The new species is most closely related to Pionaspis in the subfamily Cyathaspidinae, family Cyathaspididae, showing similarity in the presence of distinct central, anterior, and lateral epitega and in overall size and proportions, but differing in details of the ridge pattern. The unique specimen of the new taxon has an articulated oral cover that consists of a series of postoral and oral plates. Because the oral cover is almost unknown for cyathaspids, this specimen increases our knowledge of the range of oral structures in this family beyond the simple structures known for Poraspis and Anglaspis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 29-34 |
| Number of pages | 6 |
| Journal | Journal of Vertebrate Paleontology |
| Volume | 33 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2013 |
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ASJC Scopus subject areas
- Palaeontology
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A new cyathaspid (Agnatha, Heterostraci) with an articulated oral cover from the Late Silurian of the Canadian Arctic. / Elliott, David K.
In: Journal of Vertebrate Paleontology, Vol. 33, No. 1, 01.01.2013, p. 29-34.Research output: Contribution to journal › Article
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TY - JOUR
T1 - A new cyathaspid (Agnatha, Heterostraci) with an articulated oral cover from the Late Silurian of the Canadian Arctic
AU - Elliott, David K
PY - 2013/1/1
Y1 - 2013/1/1
N2 - A new genus and species of cyathaspid heterostracan, Capitaspis giblingi, gen. et sp. nov., is described from the Late Silurian (Pridolian) Upper Member of the Somerset Island Formation, Northwest Territories, Canada. The new species is most closely related to Pionaspis in the subfamily Cyathaspidinae, family Cyathaspididae, showing similarity in the presence of distinct central, anterior, and lateral epitega and in overall size and proportions, but differing in details of the ridge pattern. The unique specimen of the new taxon has an articulated oral cover that consists of a series of postoral and oral plates. Because the oral cover is almost unknown for cyathaspids, this specimen increases our knowledge of the range of oral structures in this family beyond the simple structures known for Poraspis and Anglaspis.
AB - A new genus and species of cyathaspid heterostracan, Capitaspis giblingi, gen. et sp. nov., is described from the Late Silurian (Pridolian) Upper Member of the Somerset Island Formation, Northwest Territories, Canada. The new species is most closely related to Pionaspis in the subfamily Cyathaspidinae, family Cyathaspididae, showing similarity in the presence of distinct central, anterior, and lateral epitega and in overall size and proportions, but differing in details of the ridge pattern. The unique specimen of the new taxon has an articulated oral cover that consists of a series of postoral and oral plates. Because the oral cover is almost unknown for cyathaspids, this specimen increases our knowledge of the range of oral structures in this family beyond the simple structures known for Poraspis and Anglaspis.
UR - http://www.scopus.com/inward/record.url?scp=84872575912&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872575912&partnerID=8YFLogxK
U2 - 10.1080/02724634.2012.717568
DO - 10.1080/02724634.2012.717568
M3 - Article
AN - SCOPUS:84872575912
VL - 33
SP - 29
EP - 34
JO - Journal of Vertebrate Paleontology
JF - Journal of Vertebrate Paleontology
SN - 0272-4634
IS - 1
ER -