PBDB Taxon

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Petalodus

Chondrichthyes - Petalodontiformes - Petalodontidae

Taxonomy

Petalodus is a genus. It is not extant. Its type is Petalodus hastingsii. It is the type genus of Petalodontoidea, Petalodontidae.

It was assigned to Cestraciontidae by Leidy (1873); to Janassidae by Jordan (1963); to Petalodontida by Zangerl (1981), Sepkoski (2002); and to Petalodontidae by Woodward (1889), Hay (1902), Thurmond and Jones (1981), Lund (1983), Ginter et al. (2010).

Species

P. acuminatus, P. allegheniensis (syn. Sicarius extinctus, P. destructor), P. arcuatus, P. curtus, P. davisii, P. flabellula, P. grandis, P. hastingsiae, P. hybridus, P. jewetti, P. knappi, P. linguifer, P. ohioensis, P. proximus, P. sagittatus

Synonyms

Sicarius was named by Leidy (1856).

It was synonymized subjectively with Petalodus by Hay (1902).

Synonymy list

Year	Name and author
1856	Sicarius Leidy p. 272
1873	Petalodus Leidy p. 353
1889	Petalodus Woodward p. 42
1902	Petalodus Hay p. 278
1963	Petalodus Jordan p. 593
1981	Petalodus Thurmond and Jones p. 78
1981	Petalodus Zangerl p. 98
1983	Petalodus Lund p. 1
2002	Petalodus Sepkoski
2010	Petalodus Ginter et al. p. 140

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata

Rank	Name	Author
superclass	Gnathostomata
class	Chondrichthyes
subclass	Holocephali	(Bonaparte 1832)
order	Petalodontiformes	()
family	Petalodontidae	Newberry and Worthen 1866
genus	Petalodus

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. †Petalodus

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†Petalodus acuminatus Agassiz 1838

†Petalodus allegheniensis Leidy 1856

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Invalid names: Petalodus destructor Newberry and Worthen 1870 [synonym], Sicarius extinctus Leidy 1856 [synonym]

†Petalodus arcuatus St. John 1870

†Petalodus curtus Newberry and Worthen 1870

†Petalodus davisii Woodward 1889

†Petalodus flabellula Woodward 1889

†Petalodus grandis Davis 1883

†Petalodus hastingsiae Owen 1840

†Petalodus hybridus Saint John and Worthen 1875

†Petalodus jewetti Miller 1957

†Petalodus knappi Newberry 1879

†Petalodus linguifer Newberry and Worthen 1866

†Petalodus ohioensis Safford 1853

†Petalodus proximus Saint John and Worthen 1875

†Petalodus sagittatus Agassiz 1843

Invalid names: Sicarius Leidy 1856 [synonym]

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 Visean to the top of the Roadian or 346.70000 to 266.90000 Ma

Collections (49 total)

Time interval	Ma	Country or state	Original ID and collection number
Mississippian	358.86 - 323.4	USA (Alabama)	P. sp. (84103)
Mississippian	358.86 - 323.4	United Kingdom	P. acuminatus (132782) P. aliformis, P. acuminatus (132729) P. davisii (137333) P. flabellula (137332) P. rectus, P. hastingsii, P. sagittatus (132781)
Carboniferous	358.86 - 298.9	USA (West Virginia)	P. sp. (124708)
Visean	346.7 - 330.3	United Kingdom	P. rectus, P. acuminatus, P. hastingsii (132783)
Bashkirian	323.4 - 315.2	United Kingdom (England)	P. sp. (132670)
Pennsylvanian	323.4 - 298.9	United Kingdom	P. acuminatus (137321 137322 137324 137326 137327 137329)
Pennsylvanian	323.4 - 298.9	USA (Iowa)	P. allegheniensis (74898)
Moscovian	315.2 - 307.0	Russian Federation	P. concavus (137350)
Moscovian	315.2 - 307.0	USA (Arizona)	P. ohioensis (90772)
Moscovian	315.2 - 307.0	USA (New Mexico)	P. acuminatus (149388)
Moscovian	315.2 - 307.0	Greenland	P. sp. (90247)
Moscovian	315.2 - 307.0	USA (Texas)	P. sp. (132077)
Moscovian	315.2 - 307.0	Japan	P. allegheniensis (90282)
Kashirian - Myachkovian	313.8 - 307.0	USA (New Mexico)	P. sp. (46548)
Kasimovian	307.0 - 303.7	USA (Kansas)	P. ohioensis (132333)
Kasimovian	307.0 - 303.7	USA (New Mexico)	P. ohioensis (130312) P. sp. (149383)
Kasimovian	307.0 - 303.7	USA (Nebraska)	Chomatodus arcuatus (132974) P. alleghaniensis (132967 132978) P. destructor, Chomatodus arcuatus (132676)
Late/Upper Pennsylvanian	307.0 - 298.9	USA (Texas)	P. ohioensis (236693)
Missourian	306.0 - 303.7	USA (Pennsylvania)	P. ohioensis (184103 184105)
Missourian	306.0 - 303.7	USA (Ohio)	P. ohioensis (159903 159904)
Gzhelian	303.7 - 298.9	USA (Oklahoma)	P. sp. D (132338)
Gzhelian	303.7 - 298.9	USA (Kansas)	P. jewetti (132334) P. sp. B (132336)
Gzhelian	303.7 - 298.9	Italy (Udine)	P. ohioensis (131452)
Gzhelian	303.7 - 298.9	Slovenia	P. ohioensis (131612)
Asselian	298.9 - 293.52	USA (Kansas)	P. allegheniensis (132372) P. sp. A (132335) P. sp., Chomatodus arcuatus (132374)
Asselian	298.9 - 293.52	Japan	P. acuminatus (90285)
Sakmarian	293.52 - 290.1	USA (New Mexico)	P. sp. (149384)
Sakmarian - Artinskian	293.52 - 283.3	USA (New Mexico)	P. sp. (180988)
Artinskian	290.1 - 283.3	USA (Kansas)	P. sp. C (132337)
Noginskian	276.8 - 264.9	USA (Kansas)	P. ohioensis (11789)
Roadian	274.4 - 266.9	Japan	P. sp. (90233)