Westergaardodina

Extinct genus of jawless fishes

Westergaardodina
Temporal range: middle Cambrian-lower Ordovician
PreꞒ
O
S
D
C
P
T
J
K
Pg
N
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
†Conodonta
Order:
†Paraconodontida
Family:
†Westergaardodinidae
Genus:
Westergaardodina

Species
  • Westergaardodina asinina Bagnoli & Stouge, 2014[2]
  • Westergaardodina brevidens
  • Westergaardodina quadrata
  • Westergaardodina matsushitai
  • Westergaardodina grandidens
  • Westergaardodina lui
  • Westergaardodina ani
  • Westergaardodina bohlini
  • Westergaardodina cf. calix
  • Westergaardodina proligula
  • Westergaardodina ligula
  • Westergaardodina cf. behrae
  • Westergaardodina tricuspidata
  • Westergaardodina bicuspidata
  • Westergaardodina amplicava
  • Westergaardodina nogamii
  • Westergaardodina moessebergensis
  • Westergaardodina curvata
  • Westergaardodina latidentata
  • Westergaardodina excentrica
  • Westergaardodina obliqua
  • Westergaardodina cf. ahlbergi
  • Westergaardodina auris
  • Westergaardodina communis
  • Westergaardodina concamerata
  • Westergaardodina dimorpha
  • Westergaardodina fossa
  • Westergaardodina gigantea
  • Westergaardodina horizontalis
  • Westergaardodina kleva
  • Westergaardodina microdentata
  • Westergaardodina polymorpha
  • Westergaardodina procera
  • Westergaardodina prominens
  • Westergaardodina sola
  • Westergaardodina tetragonia
  • Westergaardodina wimani

Westergaardodina is a species-rich genus of spine, U or W-shaped paraconodont[3] known from Middle Cambrian to Lower Ordovician strata.[4][5]

Use in stratigraphy

Paibi, a village in Hunan, China, is the location of the Global Boundary Stratotype Section and Point (GSSP) which marks the boundary between the Miaolingian and Furongian epochs of the Cambrian Period on the geologic time scale. The GSSP was ratified by the International Union of Geological Sciences in late 2003. It established the first formally agreed upon subdivision of the Cambrian. Markers which occur near the boundary include the first appearance of Westergaardodina proligula and the Steptoean positive carbon isotope excursion, a large positive shift in carbon-13 isotopes.[6][7]

References

  1. ^ Kambrische Conodonten. Klaus J. Müller, Zeitschrift der Deutschen Geologischen Gesellschaft Band 111 (1959), pages 434-485
  2. ^ Upper Furongian (Cambrian) conodonts from the Degerhamn quarry road section, southern Öland, Sweden. Bagnoli G and Stouge S, 2014, GFF, doi:10.1080/11035897.2013.858768
  3. ^ Murdock, Duncan J. E.; Dong, Xi-Ping; Repetski, John E.; Marone, Federica; Stampanoni, Marco; Donoghue, Philip C. J. (2013-10-24). "Descriptive terminology of paraconodont and euconodont elements. : The origin of conodonts and of vertebrate mineralized skeletons : Nature : Nature Publishing Group". Nature. 502 (7472): 546–549. doi:10.1038/nature12645. PMID 24132236. S2CID 4455633.
  4. ^ Xiping, D.; Repetski, J. E.; Bergström, S. M. (2004). "Conodont Biostratigraphy of the Middle Cambrian through Lowermost Ordovician in Hunan, South China". Acta Geologica Sinica - English Edition. 78 (6): 1185. doi:10.1111/j.1755-6724.2004.tb00776.x.
  5. ^ Muller, K.J.; Hinz, I (1991). Upper Cambrian Conodonts from Sweden. Fossils and Strata. Vol. 28. Oslo: Universitetsforlaget. pp. 1–153. ISBN 978-82-00-37475-6.
  6. ^ "Proposed Global Standard Stratotype-Section and Point for the Paibian Stage and Furongian Series (Upper Cambrian)". Retrieved 2006-06-30.
  7. ^ "Another "Golden Spike" in China". International Union of Geological Sciences. 28 November 2003. Archived from the original on November 15, 2004. Retrieved 2006-06-30.

External links

  • Data related to Westergaardodina at Wikispecies
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Conodont-like fossils
Protoconodontida?
(Probably stem-chaetognaths)
Paraconodontida
  • Diaphanodus?
  • Dolabrodus
  • Bengtsonella
  • Hunanognathus
  • Laiwugnathus
  • Prodistacodus?
  • Serratocambria
  • Shandongodus
  • Trolmenia
  • Yongshunella
Furnishinacea
Furnishinidae
  • Albiconus
  • Furnishina
  • Muellerodus
  • Nogamiconus
  • Proacodus
  • Problematoconites
  • Prooneotodus
  • Prosagittodontus
  • Proscandodus
Westergaardodinidae
  • Westergaardodina
Conodonta /
Conodontophorida /
"true conodonts" (Euconodonta)
see below
Cavidonti
Belodellida?
Ansellidae?
  • Ansella
  • Hamarodus?
  • Tokognathus?
Belodellidae
  • Belodella
  • Caenodontus?
  • Coelocerodontus
  • Drepanodistacodus?
  • Dvorakia
  • Stolodus
  • Walliserodus
Dapsilodontidae?
  • Besselodus?
  • Dapsilodus
Proconodontida
Cordylodontidae
Fryxellodontidae
  • Dzikodus?
  • Fryxellodontus
  • Kallidontus
  • Polonodus?
  • Pygodontidae?
Conodonti
  • Besselodus?
  • Cristodus?
  • Dapsilodus?
  • Loxodus?
  • Thrincodus?
Protopanderodontida
Acanthodontidae
  • Acanthodus
  • Kirkupodus
  • Parapaltodus
  • Scalpellodus?
  • Ulrichodina?
Clavohamulidae
  • Clavohamulus
  • Dasytodus
  • Eoserratognathus
  • Granatodontus
  • Hirsutodontus
  • Hispidodontus
  • Laiwunodus
  • Nericodus?
  • Paraserratognathus
Drepanoistodontidae?
(Distacodontidae)?
  • Distacodus
  • Drepanodus?
  • Drepanoistodus
  • Laurentoscandodus
  • Nordiodus?
  • Paltodus
  • Paroistodus
  • Venoistodus
Panderodontida
(Panderodontidae)
  • Belodina
  • Culumbodina
  • Naimanodus
  • Neopanderodus
  • Nudibelodina
  • Panderodus
  • Parabelodina
  • Parapanderodus
  • Plegagnathus
  • Pseudobelodina
  • Taoqupognathus
  • Belodellidae?
Protopanderodontidae
  • Aloxoconus?
  • Colaptoconus
  • Drepanodus
  • Eucharodus
  • Filodontus?
  • Molloydenticulus
  • Monocostodus
  • Oneotodus
  • Parutahconus
  • Planusodus
  • Polycostatus
  • Protopanderodus
  • Pseudooneotodus?
  • Semiacontiodus
  • Scolopodus
  • Staufferella
  • Striatodontus
  • Stultodontus
  • Teridontus
  • Utahconus
  • Variabiloconus
  • Ventricodus
Serratognathidae?
  • Serratognathoides
  • Serratognathus
Strachanognathidae?
(Cornuodontidae)?
  • Cornuodus
  • Decoriconus
  • Macerodus
  • Scabbardella
  • Strachanognathus
Prioniodontida
see below
incertae sedis
  • Multidentodus?
  • Rossodus
  • Schopfodus
  • Ansellidae?
Acodontidae?
  • Acodus
  • Diaphorodus
  • Nealeodus?
  • Pteracontiodus
  • Triangulodus
  • Tripodus
  • Tropodus
Balognathidae
Distomodontidae
Gamachignathidae?
  • Birksfeldia
  • Galerodus
  • Gamachignathus
Icrodellidae
  • Icriodella
  • Icriognathus
  • Pedavis
Icriodontidae
Jablonnodontidae?
  • Cononcfiodontus
  • Fungulodus
  • Jablonnodus
  • Mitrellataxis
Multioistodontidae
  • Dischidognathus
  • Leptochirognathus?
  • Multioistodus
  • Neomultioistodus
  • Wandelia
Nurrellidae?
  • Nurrella
Oistodontidae
  • Graciliconus
  • Histiodella
  • Juanognathus
  • Jumudontus
  • Loxognathodus
  • Loxodentatus
  • Oistodus
  • Oleandodus
  • Tricostatus
Ozarkodinida
see below
Paracordylodontidae
Periodontidae
Phragmodontidae
  • Acanthocordylodus
  • Acanthodina
  • Nordiora
  • Paraprioniodus
  • Phragmodus
  • Protophragmodus
Playfordiidae?
  • Playfordia
Plectodinidae
  • Bryantodina
  • Plectodina
  • Scyphiodus
Polyplacognathidae
  • Baltoplacognathus
  • Cahabagnathus
  • Polonodus?
  • Polyplacognathus
Prioniodinida
see below
Prioniodontidae
  • Angulodus
  • Astognathus
  • Cardiodella
  • Dichognathus
  • Drucognathus
  • Embsaygnathus
  • Eocarniodus
  • Eoneoprioniodus
  • Guizhouprioniodus
  • Kailidontus
  • Lambdagnathus
  • Prioniodus
  • Reutterodus
  • Stiptognathus
Pygodontidae?
  • Nericodus?
  • Pygodus
Rhipidognathidae
Anchignathodontidae
?Archeognathidae
?Belodontidae
  • Albiconus
  • Belodus
  • Bengtsonella
  • Cambropustula
  • Gumella
  • Hunanganthus
  • Lepognathus
  • Microcoelodus
  • Paibiconus
  • Ptiloconus
?Coleodontidae
Coleodontinae
Hibbardellinae
  • Diplododella
  • Elsonella
  • Hibbardella
  • Hibbardelloides
  • Ptilognathus
  • Roundya
  • Tetraprioniodus
  • Zentagnathus
Hindeodellinae
Ligonodinae
  • Euprioniodella
  • Euprioniodina
  • Hamulosodina
  • Hindeodelloides
  • Ligonodina
  • Lonchodina?
  • Lonchodus
  • Synprioniodina
Neoprioniodontinae
  • Leptochirognathus
  • Loxodus
  • Neoprioniodus
  • Pachysomia
  • Subprioniodus
Plectospathodontinae
  • Anastrophognathus
  • Aphelognathus
  • Gothodus
  • Keislognathus
  • Plectospathodus
Cryptotaxidae
?Eognathodontidae
  • Eognathodus
  • Gigantholus
  • Gondwania
  • Pseudogondwania
  • Rhodalepis
  • Schmidtognathus
  • Siphonodella
Elictognathidae
?Francodinidae
  • Francodina
  • Planadina
  • Sweetodina
  • Urbanekodina
  • Vogelgnathus
?Gladigondolellidae
  • Gladigondolella
Gondolellidae
Gnathodontidae
Idiognathodontidae
?Iowagnathidae
  • Iowagnathus
Kockelellidae
Mestognathidae
  • Laterignathus
  • Mestognathus
?Novispathodontidae
  • Discretella
  • Gongolelloides
  • Guanxidella
  • Icriospathodus
  • Kashmirella
  • Mosherella
  • Novispathodus
  • Smithodus
  • Sweetospathodus
  • Triassospathodus
Polygnathacea
Cavusgnathidae
Palmatolepidae
  • Conditolepis
  • Dinodus
  • Kielcelepis
  • Klapperilepis
  • Lagovilepis
  • Manticolepis
  • Mesotaxis
  • Palmatolepis
  • Panderolepis
  • Tripodellus
Polygnathidae
  • Avignathus
  • Bispathodus
  • Ctenopolygnathus
  • Mehlina
  • Nicollidina
  • Pandorinellina
  • Parapolygnathus
  • Polygnathus
  • Streptognathodus
  • Synclydagnathus
Pterospathodontidae
Spathognathodontidae
Sweetognathidae
?Trucherognathidae
  • Trucherognathus
?Vjalovognathidae
?Wapitiodontidae
  • Wapitiodus
Bactrognathidae
Chirognathidae
Ellisoniidae
?Oepikodontidae
  • Lissoepikodus
  • Oepikodus
Prioniodinidae
  • Bryantodus
  • Camptognathus
  • Chirodella
  • Cornuramia
  • Dyminodina
  • Falodus
  • Guizhoudella
  • Gyrognathus
  • Idioprionodus
  • Kamuellerella
  • Lagovidina
  • Metalonchodina
  • Multidentodus
  • Neoplectospathodus
  • Oulodus
  • Palmatodella
  • Pluckidina
  • Polygnathellus
  • Prioniodella
  • Prioniodina
  • Prionognathodus
  • Pristognathus
  • Scotlandia
  • Subbryantodus
  • Uncadina
  • Veghella
?Xaniognathidae
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Taxon identifiers
Westergaardodina


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