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Polyrhizodus

Chondrichthyes - Petalodontiformes - Petalodontidae

Synonymy list
YearName and author
1848Polyrhizodus M'Coy
1889Polyrhizodus Woodward p. 56
1902Polyrhizodus Hay p. 282
1963Polyrhizodus Jordan p. 593
1981Polyrhizodus Zangerl p. 99
1983Polyrhizodus Lund p. 1
1989Polyrhizodus Lund p. 351
2002Polyrhizodus Sepkoski
2010Polyrhizodus Ginter et al. p. 146

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
RankNameAuthor
superclassGnathostomata
classChondrichthyes
subclassHolocephali(Bonaparte 1832)
orderPetalodontiformes()
familyPetalodontidaeNewberry and Worthen 1866
genusPolyrhizodusM'Coy 1848

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. †Polyrhizodus M'Coy 1848
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Polyrhizodus carbonarius Saint John and Worthen 1875
Polyrhizodus colei Davis 1883
Polyrhizodus concavus Trautschold 1874
Polyrhizodus dentatus Newberry and Worthen 1866
Polyrhizodus digitatus Leidy 1857
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Invalid names: Polyrhizodus amplus St. John and Worthen 1875 [synonym], Polyrhizodus excavatus Saint John and Worthen 1866 [synonym], Polyrhizodus littoni Newberry and Worthen 1870 [synonym], Polyrhizodus lobatus Newberry and Worthen 1866 [synonym], Polyrhizodus princeps Newberry and Worthen 1866 [synonym], Polyrhizodus williamsi St. John and Worthen 1875 [synonym]
Polyrhizodus elongatus Davis 1883
Polyrhizodus inflexus Newberry and Worthen 1866
Polyrhizodus latus Newberry 1897
Polyrhizodus magnus M'Coy 1848
Polyrhizodus minimus Saint John and Worthen 1875
Polyrhizodus modestus Newberry 1875
Polyrhizodus nanus Saint John and Worthen 1875
Polyrhizodus piasaensis Saint John and Worthen 1875
Polyrhizodus ponticulus Newberry and Worthen 1866
Polyrhizodus porosus Newberry and Worthen 1866
Polyrhizodus pusillus M'Coy 1848
Polyrhizodus rectus Newberry 1897
Polyrhizodus truncatus Newberry and Worthen 1870
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Created: 2009-07-21 07:09:25
Modified: 2009-07-21 09:09:25
Source: o = order, subp = subphylum
References: Hendy et al. 2009, Carroll 1988, Wagner 2023

Age range: base of the Arnsbergian to the top of the Mississippian or 326.40000 to 323.20000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Mississippian358.9 - 323.2United Kingdom P. magnus, P. colei, P. elongatus, P. attenuatus (137333) P. magnus, P. pusillus (132781)
Arnsbergian326.4 - 318.1USA (Montana) P. digitatus (116655)