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Petalolithus
Taxonomy
Petalolithus was named by Suess (1851) [Sepkoski's age data: S Ldov-m S Ldov-u Sepkoski's reference number: 1267]. Its type is Prionotus folium.
It was assigned to Graptoloidea by Sepkoski (2002); and to Petalolithinae by Melchin et al. (2011), Lenz et al. (2018).
It was assigned to Graptoloidea by Sepkoski (2002); and to Petalolithinae by Melchin et al. (2011), Lenz et al. (2018).
Species
Species lacking formal opinion data
Entered
by J. Sepkoski on 2003-01-23; modified by P. Wagner on 2024-08-04
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1851 | Petalolithus Suess |
| 2002 | Petalograptus Sepkoski |
| 2002 | Petalolithus Sepkoski |
| 2011 | Petalolithus Melchin et al. pp. 286, 300 |
| 2018 | Petalolithus Lenz et al. p. 5 |
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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.
G. †Petalolithus Suess 1851
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†Petalolithus ankyratus Mu and Li 1974
†Petalolithus folium Hisinger 1837
†Petalolithus intermedius Boucek and Príbyl 1941
Invalid names: Petalograptus [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. J. Melchin et al. 2011 | Rhabdosomes with Pattern I structure and elongate, weakly to strongly concave first thecal pair, straight to concave, strongly overlapping distal thecae, four-pronged ancora (after Melchin 1998). |