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Prioniodinina
Taxonomy
Prioniodinina was named by Sweet (1988). It was considered monophyletic by Donoghue et al. (2008).
It was assigned to Prioniodontida by Donoghue et al. (2008).
It was assigned to Prioniodontida by Donoghue et al. (2008).
Synonymy list
Year | Name and author |
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1988 | Prioniodinina Sweet |
2008 | Prioniodinina Donoghue et al. p. 139 |
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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.
Subor. †Prioniodinina Sweet 1988
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G. †Chirognathus
G. †Erismodus
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†Erismodus asymmetricus Branson and Mehl 1933
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Invalid names: Erismodus compressus Branson and Mehl 1933 [synonym], Erismodus unicornis Branson and Mehl 1933 [synonym], Microcoelodus typus Branson and Mehl 1933 [synonym]
†Erismodus gracilis Branson and Mehl 1933
†Erismodus quadridactylus Stauffer 1935
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Invalid names: Trichonodella prominens Moskalenko 1973 [synonym]
†Erismodus symmetricus Branson and Mehl 1933
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Invalid names: Erismodus inornatus Branson and Mehl 1943 [synonym]
†Erismodus typus Branson and Mehl 1933
Invalid names: Microcoelodus Branson and Mehl 1933 [synonym], Ptiloconus Sweet 1955 [synonym]
G. †Hibbardella Bassler 1925
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G. †Kladognathus Rexroad 1958
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Invalid names: Lambdagnathus Rexroad 1958 [synonym], Magnilaterella Rexroad and Collinson 1963 [synonym]
G. †Oulodus Branson and Mehl 1933
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†Oulodus elegans Walliser 1964
†Oulodus equirectus Kleffner 1990
†Oulodus excavatus Ziegler 1960
†Oulodus jeannae Sweet and Schönlaub 1975
†Oulodus novoexcavatus Jeppsson 1972
†Oulodus panuarensis Bischoff 1986
†Oulodus petilus Nicoll and Rexroad 1968
†Oulodus siluricus Branson and Mehl 1933
†Oulodus walliseri Ziegler 1960
Invalid names: Ligonodina [synonym]
Diagnosis
Reference | Diagnosis | |
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P. C. J. Donoghue et al. 2008 | The possession of an ‘inner lateral’ process on P2 elements (character 24) is a unique synapomorphy that unites all Prioniodinina. The absence of a posterior process (character 23) is almost as reliable as a prioniodinin synapomorphy, but is secondarily gained in Kladognathus and is homoplastically lost in Histiodella and Periodon. All other synapomorphies of this clade, or slightly less inclusive subclades, are also P element characters. The clade encompassing all Prioniodinina except Aphelognathus, for example, is united by the possession of digyrate P2 elements with an angle of less than ca. 135◦ between proximal parts of processes (character 93), a unique synapomorphy, and in possessing peglike denticles on P2 elements (character 21; secondarily lost in Erraticodon, Oulodus, Erismodus and Chirognathus). Members of the clade comprising all prioniodinins more derived than Prioniodina share a number of synapomorphies (characters 1, 4, 5, 6, 7, 25, 28, 92) that pertain to possession of digyrate P1 and P2 elements (characters 7, 28, 92; unique to this clade; very few reversals) and their process disposition (characters 1, 4, 5, 6, 25). |
Measurements
No measurements are available
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Source: c = class | |||||
Reference: Aberhan 1992 |
Collections (1122 total)
Oldest occurrences | |||
Time interval | Ma | Country or state | Original ID and collection number |
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Early/Lower Ordovician | Svalbard and Jan Mayen | Oulodus sp. (186654) | |
Dawan | China (JiangSu) | Ligonodina sp. (7927) | |
Arenig | China (HeBei) | Chirognathus sp., Ligonodina sp. (7956) Ptiloconus sp. (7974) | |
Arenig | China (Hubei) | Oulodus sp. (4714) | |
Arenig | Argentina | Erraticodon sp. (8746 8875) Ptiloconus sp. (8719) | |
Arenigian - Llanvirn | USA (Alaska) | Chirognathus sp., Ligonodina sp. (114858) | |
Floian | New Zealand (Maruia) | Erraticodon sp. (204052) | |
Floian | Peru | Erraticodon patu (210687) | |
Floian - Dapingian | Argentina (Jujuy) | Erraticodon patu (210131) | |
Dapingian | Argentina | Erraticodon balticus (204200 204201) | |
Youngest occurrences |
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Time interval | Ma | Country or state | PBDB collection number |
Anisian - Ladinian | Greece (Chios) | Apatognathus radiatus, Hibbardella nevadensis, Hibbardella sp., Roundya magnidentata (222765) | |
Anisian - Carnian | Greece | Diplododella bidentata (222706) Roundya magnidentata (222728) | |
Anisian - Norian | Greece | Apatognathus mitzopouli, Diplododella meissneri, Diplododella thuringensis, Prioniodina excavata (222704) | |
Ladinian | Hungary | Diplododella bidentata, Diplododella meissneri, Hibbardella lautissima, Hibbardella magnisdentata, Hibbardella multihamata, Hibbardella suevica (99503) Diplododella bidentata, Diplododella meissneri, Hibbardella lautissima, Hibbardella magnisdentata, Hibbardella multihamata, Hibbardella suevica, Prioniodina excavata (99504) | |
Ladinian | Bosnia and Herzegovina | Apatognathus insignis (44738) Roundya magnidentata (44735) | |
Ladinian - Carnian | Greece | Hibbardella magnidentata (222709) | |
Carnian | Hungary | Diplododella bidentata, Hibbardella lautissima, Hibbardella magnisdentata, Hibbardella multihamata, Hibbardella suevica, Prioniodina excavata (99502) | |
Carnian | Israel | Hibbardella a (41693) | |
Carnian - Norian | Greece | Diplododella bidentata, Hibbardella zapfei, Prioniodina excavata, Diplododella magnidentata (222714) Prioniodina excavata (222705) Prioniodina excavata, Hibbardella magnidentata (222731) | |
Oretian | New Zealand | Diplododella sp., Prioniodina excavata (137846) |