| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hyolithellidae
Taxonomy
Hyolithellidae was named by Walcott (1886). Its type is Hyolithellus.
It was assigned to Hyolithelminthes by Fisher (1962) and Landing et al. (2008); and to Hyolithelminthida by Skovsted (2006), Parkhaev and Demidenko (2010) and Kouchinsky et al. (2017).
It was assigned to Hyolithelminthes by Fisher (1962) and Landing et al. (2008); and to Hyolithelminthida by Skovsted (2006), Parkhaev and Demidenko (2010) and Kouchinsky et al. (2017).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1886 | Hyolithellidae Walcott |
| 1962 | Hyolithellidae Fisher p. 132 |
| 2006 | Hyolithellidae Skovsted p. 1100 |
| 2008 | Hyolithellidae Landing et al. p. 901 |
| 2010 | Hyolithellidae Parkhaev and Demidenko p. 941 |
| 2017 | Hyolithellidae Kouchinsky et al. p. 408 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
Fm. †Hyolithellidae Walcott 1886
show all | hide all
G. †Barella Herdström 1930
G. †Hexagonellus Parkhaev and Demidenko 2010
hide
†Hexagonellus kuzminae Parkhaev and Demidenko 2010
G. †Hyolithellus Billings 1872
hide
†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]
G. †Pseudorthotheca Cobbold 1935
hide
†Pseudorthotheca bistriata Qian 1978
†Pseudorthotheca costata Missarzhevsky and Mambetov 1981
†Pseudorthotheca filosa Cobbold 1935
†Pseudorthotheca rara Vasil’yeva 1994
†Pseudorthotheca yichangensis Qian et al. 1979
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Y. Parkhaev and Y. Demidenko 2010 | "Narrow conical radial symmetrical tubes opened from both ends. Tube wall bilaminar, outer layer approximately 3 μm thick, inner layer 15 μm thick). Chemical composition of tube wall calcium phosphate. Cross-section of tubes circular or rounded hexagonal. Tubes externally smooth, or ornamented by convex transversal ribs." |