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Ptyctodontida

Placodermi - Ptyctodontida

Taxonomy
Ptyctodontida was named by Gross (1932).

It was synonymized subjectively with Ptyctodontiformes by Long (2011).

It was assigned to Placodermi by Denison (1975); and to Placodermi by Denison (1978), Dineley and Metcalf (1999), Sepkoski (2002), Young (2010).

Synonymy list
YearName and author
1932Ptyctodontida Gross
1975Ptyctodontida Denison p. 23
1978Ptyctodontida Denison
1999Ptyctodontida Dineley and Metcalf p. 11
2002Ptyctodontida Sepkoski
2010Ptyctodontida Young p. 527

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
RankNameAuthor
subphylumVertebrata
superclassGnathostomata
classPlacodermiM'Coy 1848
orderPtyctodontidaGross 1932
orderPtyctodontidaGross 1932

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.

Or. †Ptyctodontida Gross 1932
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G. †Denisonodus Johnson and Elliott 1996
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†Denisonodus plutonensis Johnson and Elliott 1996
G. †Rhamphodopsis Watson 1938
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G. †Tollodus Mark-Kurik 1977
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilec
Life habit: nektonicc
Diet: carnivorec
Created: 2004-08-17 14:32:58
Modified: 2004-08-17 16:32:58
Source: c = class, subp = subphylum
References: Kiessling 2004, Carroll 1988

Age range: base of the Eifelian to the top of the Famennian or 393.47000 to 358.86000 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Eifelian393.47 - 387.95United Kingdom (Scotland) Rhamphodopsis threiplandi (226060 226061) Rhamphodopsis trispinatus (226058)
Eifelian393.47 - 387.95Iran Ptyctodontida indet. (239496)
Eifelian393.47 - 387.95Estonia Ptyctodontida indet. (225793)
Eifelian393.47 - 387.95Belarus P. gen. n. ? (225882)
Eifelian393.47 - 387.95Belarus (Vitebsk) Ptyctodontida indet. (232958)
Late/Upper Givetian383.4 - 382.31Belarus Ptyctodontida indet. (225888)
Early/Lower Frasnian382.31 - 379.0Russian Federation Ptyctodontida indet. (90343)
Frasnian382.31 - 372.15USA (Arizona) Denisonodus plutonensis (238077)
Famennian372.15 - 358.86South Africa (Eastern Cape) Ptyctodontida indet. (68049)