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Hyolithellus
Taxonomy
Hyolithellus was named by Billings (1872) [Sepkoski's age data: V N-Da-u Cm uMid-m Sepkoski's reference number: 522,1019,1030]. Its type is Hyolithus micans. It is the type genus of Hyolithellidae.
It was assigned to Hyolithelminthes by Sepkoski (2002); and to Hyolithellidae by Fisher (1962), Rozanov et al. (1969), Wrona (2004), Skovsted (2006), Landing et al. (2008), Parkhaev and Demidenko (2010) and Kouchinsky et al. (2017).
It was assigned to Hyolithelminthes by Sepkoski (2002); and to Hyolithellidae by Fisher (1962), Rozanov et al. (1969), Wrona (2004), Skovsted (2006), Landing et al. (2008), Parkhaev and Demidenko (2010) and Kouchinsky et al. (2017).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1872 | Hyolithellus Billings |
| 1962 | Hyolithellus Fisher p. 132 |
| 1969 | Hyolithellus Rozanov et al. p. 177 |
| 2002 | Hyolithellus Sepkoski |
| 2002 | Rhabdochites Sepkoski |
| 2004 | Hyolithellus Wrona p. 46 |
| 2006 | Hyolithellus Skovsted p. 1100 |
| 2008 | Hyolithellus Landing et al. p. 901 |
| 2010 | Hyolithellus Parkhaev and Demidenko p. 941 |
| 2017 | Hyolithellus Kouchinsky et al. p. 408 |
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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. †Hyolithellus Billings 1872
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†Hyolithellus decorus Chen 1984
†Hyolithellus filiformis Bengtson et al. 1990
†Hyolithellus grandis Rozanov et al. 1969
†Hyolithellus insolitus Voronin et al. 1982
†Hyolithellus isiticus Rozanov et al. 1969
†Hyolithellus micans Billings 1871
†Hyolithellus papillatus Walcott 1912
†Hyolithellus rectus Missarzhevsky and Mambetov 1981
†Hyolithellus sinuosus Cobbold 1921
†Hyolithellus tenuis Rozanov and Missarzhevsky 1966
†Hyolithellus vitricus Missarzhevsky and Mambetov 1981
†Hyolithellus vladimirovae Rozanov and Missarzhevsky 1966
Invalid names: Rhabdochites [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Y. Parkhaev and Y. Demidenko 2010 | "Narrow conical straight or curved tubes opened from both ends, with expansion angle up to 5°. Cross-section of tubes circular. Tubes externally smooth, or bear transversal or rarely longitudinal ornamentation. Internal surface smooth. Tube wall bilaminar." |