Research output: Contribution to journal › Article › peer-review
The revision of "Cladodus" occidentalis, a late Palaeozoic ctenacanthiform shark. / Ginter, Michał; Ivanov, Alexander; Lebedev, Oleg.
In: Acta Palaeontologica Polonica, Vol. 50, No. 3, 01.09.2005, p. 623-631.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - The revision of "Cladodus" occidentalis, a late Palaeozoic ctenacanthiform shark
AU - Ginter, Michał
AU - Ivanov, Alexander
AU - Lebedev, Oleg
PY - 2005/9/1
Y1 - 2005/9/1
N2 - The teeth of a well known late Palaeozoic cladodont chondrichthyan, "Cladodus" occidentalis from Russia, USA, and England are restudied and a new generic name, Glikmanius gen. nov., is proposed for this species. Yet another tooth-based species, formerly described as ?Symmorium myachkovensis, occurring on the Russian Platform and in Nebraska, is considered to belong to the newly erected genus. Although there is no direct evidence that Glikmanius possessed fin spines, the broad similarity between its teeth and those of Ctenacanthus compressus suggests it had a ctenacanthiform affinity. The possible relationships between Glikmanius, Cladodus sensu stricto, "Ctenacanthus" costellatus, and Heslerodus, are suggested. However, the proposition put forward by an earlier author that the teeth of Heslerodus might represent the lower jaw dentition of G. myachkov ensis, is rejected. The overall resemblance of Glikmanius teeth and those of Cladoselache and Squatinactis is recognised as convergent.
AB - The teeth of a well known late Palaeozoic cladodont chondrichthyan, "Cladodus" occidentalis from Russia, USA, and England are restudied and a new generic name, Glikmanius gen. nov., is proposed for this species. Yet another tooth-based species, formerly described as ?Symmorium myachkovensis, occurring on the Russian Platform and in Nebraska, is considered to belong to the newly erected genus. Although there is no direct evidence that Glikmanius possessed fin spines, the broad similarity between its teeth and those of Ctenacanthus compressus suggests it had a ctenacanthiform affinity. The possible relationships between Glikmanius, Cladodus sensu stricto, "Ctenacanthus" costellatus, and Heslerodus, are suggested. However, the proposition put forward by an earlier author that the teeth of Heslerodus might represent the lower jaw dentition of G. myachkov ensis, is rejected. The overall resemblance of Glikmanius teeth and those of Cladoselache and Squatinactis is recognised as convergent.
KW - Carboniferous
KW - Chondrichthyes
KW - Ctenacanthiformes
KW - Permian
KW - Teeth
UR - http://www.scopus.com/inward/record.url?scp=26244447537&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:26244447537
VL - 50
SP - 623
EP - 631
JO - Acta Palaeontologica Polonica
JF - Acta Palaeontologica Polonica
SN - 0567-7920
IS - 3
ER -
ID: 36071496