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Polyplacognathidae

Conodonta - Prioniodontida - Polyplacognathidae

Synonymy list
YearName and author
1981Polyplacognathidae Bergström
1981Polyplacognathidae Clark et al. p. W103
1988Polyplacognathidae Sweet p. 186
1999Polyplacognathidae Stouge and Bagnoli p. 156
2013Polyplacognathidae Mestre and Heredia p. 47

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumConodontophorida()
RankNameAuthor
classConodonta
orderPrioniodontida(Dzik 1976)
superfamilyPrioniodontaceaBassler 1925
familyPolyplacognathidaeBergström 1981
familyPolyplacognathidaeBergström 1981

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.

Fm. †Polyplacognathidae Bergström 1981
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G. †Baltoplacognathus Zhang 1998
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†Baltoplacognathus reclinatus Fåhræus 1966
G. †Cahabagnathus Bergström 1983
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†Cahabagnathus friendsvillensis Bergström 1971
†Cahabagnathus sweeti Bergström 1971
G. †Eoplacognathus Hamar 1966
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†Eoplacognathus suecicus Bergström 1971
G. †Polonodus Dzik 1976
G. †Polyplacognathus Stauffer 1935
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†Polyplacognathus jianyeensis An and Ding 1982
G. †Yangtzeplacognathus Zhang 1998
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†Yangtzeplacognathus crassus Chen and Zhang 1993
Diagnosis
No diagnoses are available
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 Darriwilian to the top of the Maysvillian or 467.30000 to 449.60000 Ma

Collections (77 total)


Time interval Ma Country or state Original ID and collection number
Arenig478.6 - 466.0Argentina Polonodus sp. (8744 8751)
Middle Ordovician470.0 - 458.4USA (New York) Polyplacognathus sp. (333 334 335)
Middle Ordovician470.0 - 458.4Canada (British Columbia) Cahabagnathus sp. (177779)
Chazyan470.0 - 457.3USA (Tennessee) Polyplacognathus sp. (308)
Whiterockian470.0 - 457.3USA (Nevada) Polyplacognathus friendsvillensis (210658 210660) Polyplacognathus rutriformis (210656) Polyplacognathus rutriformis, Polyplacognathus friendsvillensis (210657 210659)
Kunda469.2 - 464.3Sweden Yangtzeplacognathus crassus (203662)
Abereiddian468.0 - 461.1Kazakhstan Polyplacognathus sp. (165486 165487)
Early/Lower Llanvirn468.0 - 461.1Argentina Eoplacognathus sp. (8870) Eoplacognathus sp., Polonodus sp. (8747) Eoplacognathus suecicus (9026)
Llanvirn468.0 - 458.4China (JiangSu) Eoplacognathus sp. (7932)
Llanvirn468.0 - 458.4Argentina Eoplacognathus suecicus (8873)
Llanvirn468.0 - 458.4Canada (Northwest Territories) Eoplacognathus suecicus (25753)
Darriwilian467.3 - 458.4China (HeBei) Eoplacognathus sp., Polyplacognathus sp. (7955)
Darriwilian467.3 - 458.4Canada (Newfoundland) Yangtzeplacognathus n. sp. A (210489)
Darriwilian467.3 - 458.4Canada (British Columbia) Eoplacognathus suecicus (177959)
Darriwilian467.3 - 458.4Russian Federation (Gorny Altai) Eoplacognathus pseudoplanus (194972)
Darriwilian467.3 - 458.4Russian Federation (Siberia) Eoplacognathus pseudoplanus (206166) Polyplacognathus petaloideus (206301)
Darriwilian467.3 - 458.4Argentina Eoplacognathus n. sp. (210458) Eoplacognathus n. sp., Polonodus magnus, Polonodus galerus, Polonodus newfoundlandensis, Eoplacognathus pseudoplanus (210460) Eoplacognathus suecicus (210668) Polonodus galerus (210377 210390 210452) Polonodus galerus, Polonodus sp., Eoplacognathus pseudoplanus (210453) Polonodus galerus, Yangtzeplacognathus crassus (210392 210420) Yangtzeplacognathus crassus (210388 210416)
Darriwilian467.3 - 458.4Kazakhstan Eoplacognathus sp., Yangtzeplacognathus sp. (220540)
Aluoja - Aseri466.0 - 460.9Sweden Eoplacognathus pseudoplanus (210643 210644 210645 210646 210647 210650 210651 210652)
Early/Lower Llandeilo466.0 - 460.9Russian Federation (Siberia) Polyplacognathus sp. (9301)
Early/Lower Llandeilo466.0 - 460.9Argentina Eoplacognathus sp. (8868)
Early/Lower Llandeilo466.0 - 460.9China (Hubei) Polyplacognathus sp. (4711)
Lasnamagi463.5 - 460.9Sweden (Jämtland) Eoplacognathus reclinatus (210655)
Lasnamagi463.5 - 460.9Estonia Baltoplacognathus reclinatus (210664) Yangtzeplacognathus protoramosus (210675)
Lasnamagi463.5 - 460.9Lithuania Baltoplacognathus reclinatus (210665)
Late/Upper Llanvirn463.5 - 460.9China (Hubei) Eoplacognathus sp. (4712)
Late/Upper Llanvirn463.5 - 460.9Russian Federation (Siberia) Cahabagnathus sp. (9224) Polyplacognathus sp. (9227 9230)
Late/Upper Llandeilo461.1 - 458.4Russian Federation (Siberia) Eoplacognathus sp. (9228) Polyplacognathus sp. (9297 9304 9308)
Middle Llandeilo - Late/Upper Llandeilo461.1 - 458.4China (Hubei) Polyplacognathus sp. (4710)
Kukruse458.0 - 456.8Sweden (Skania) Cahabagnathus sweeti (203706)
Turinian457.3 - 453.8USA (Missouri) Polyplacognathus ramosus (176649)
Blackriveran457.3 - 449.6USA (Oklahoma) Polyplacognathus sp., Polyplacognathus sweeti (23985)
Blackriveran - Shermanian457.3 - 449.6USA (Minnesota) Polyplacognathus ramosus (23295 23298)
Blackriveran - Shermanian457.3 - 449.6USA (Iowa) Polyplacognathus ramosus (23300)
Longvillian457.2 - 455.0China (JiangSu) Polyplacognathus sp. (7931 7948)
Chatfieldian453.8 - 451.0USA (New York) Polyplacognathus ramosa (76089 76090)
Katian453.0 - 445.2USA (Oklahoma) Polyplacognathus ramosus (212663 212664 212665)
Edenian - Maysvillian451.0 - 449.6Canada (Northwest Territories) Polyplacognathus ramosus (27086)