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Costiconus

Conodonta

Taxonomy
Costiconus was named by Rasmussen (2001). Its type is Panderodus ethingtoni.

It was assigned to Conodonta by Rasmussen (2001).

Species
C. costatus, C. ethingtoni, C. iniquus
Species lacking formal opinion data
C. mysticus

Synonymy list
YearName and author
2001Costiconus Rasmussen pp. 59 - 60

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
RankNameAuthor
phylumChordataHaeckel 1874
subphylumConodontophorida()
classConodonta
genusCosticonus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Costiconus Rasmussen 2001
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†Costiconus costatus Dzik 1976
†Costiconus ethingtoni Fåhræus 1966
†Costiconus iniquus Viira 1974
Diagnosis
ReferenceDiagnosis
J. A. Rasmussen 2001The apparatus is basically trimembrate, comprising drepanodontiform, oistodontiform and costate elements. The drepanodontiform and oistodontiform elements are asymmetrical, adenticulate and acostate. The drepanodontiform elements are planoconvex and nongeniculate, while the oistodontiform elements are inwardly bowed, planoconvex or gently biconvex, and geniculate or nongeniculate . The costate elements make a symmetry-transition series of costate, adenticulate, nongeniculate coniform elements making at least 1 9 different variations based on the location and num ber of costae on the lateral surfaces. Costiean us n. gen. is characterised by a basal cavity which extends about 30 - 50 % of the total length of element.
Measurements
No measurements are available
Composition: hydroxyapatitec
Locomotion: actively mobilec
Life habit: nektonicc
Diet: carnivorec
Vision: well-developedc
Created: 2005-02-03 07:48:42
Modified: 2010-02-12 04:00:46
Source: c = class
Reference: Aberhan 1992

Age range: base of the Volkhov to the top of the Whiterockian or 471.10000 to 457.30000 Ma

Collections (60 total)


Time interval Ma Country or state Original ID and collection number
Floian477.7 - 470.0China (Anhui) C. ethingtoni (203682 203684 203690)
Volkhov - Kunda471.1 - 464.3Sweden C. costatus (203657)
Dapingian470.0 - 467.3China (Anhui) C. ethingtoni (203674 203675 203680 203681)
Dapingian470.0 - 467.3Canada (Newfoundland) C. costatus (210461 210464 210465 210468 210494 210496 210497) C. flexuodus (210500)
Whiterockian470.0 - 457.3Canada (British Columbia) Walliserodus costatus (177774)
Kunda469.2 - 464.3Sweden C. costatus (203661 203662)
Darriwilian467.3 - 458.4China (Zhejiang) C. costatus (223088) Walliserodus ethingtoni (203702 203703)
Darriwilian467.3 - 458.4Canada (Newfoundland) C. costatus (210475 210477) C. flexuodus (210478 210479 210480 210481 210483 210486 210487 210488 210489 210490 210503)
Darriwilian467.3 - 458.4Kazakhstan C. ethingtoni (220540)
Darriwilian467.3 - 458.4China (Anhui) C. ethingtoni (203669 203672)
Darriwilian467.3 - 458.4Canada (British Columbia) Walliserodus ethingtoni (177959 177960 177964)
Darriwilian467.3 - 458.4New Zealand C. ethingtoni (210506) C. ethingtoni, C. iniquus (210509) C. iniquus (210505)
Darriwilian467.3 - 458.4Argentina C. costatus (210377 210378 210391 210392 210416 210420 210453 210459 210460)
Aluoja - Aseri466.0 - 460.9Sweden C. mysticus (210651)
Lasnamagi463.5 - 460.9Sweden (Jämtland) C. ethingtoni (210655)
Sandbian458.4 - 453.0China C. ethingtoni (203615)
Sandbian458.4 - 453.0China (Zhejiang) C. ethingtoni (203714 203715 203716 203720)