Anabaritid

Anabaritid; Temporal range: Early Cambrian PreꞒ Ꞓ O S D C P T J K Pg N (Possible Ediacarian Record*)
Scientific classification
Kingdom:	Animalia
Phylum:	incertae sedis
Family:	† Anabaritidae ; Missarzhevsky, 1974
Genera
	Aculeochrea ; Anabarites ; Cambrotubulus ; Mariochrea ; Selindeochrea ; Lobiochrea (?); Tiksitheca ; Gastreochrea (?);

Last updated August 22, 2025

The anabaritids or angustiochreids are enigmatic tubular, mineralizing organisms with a trifold symmetry (i.e., clover shape) known from their Lower Cambrian fossils. They may have represented cnidaria, but their affinity within the Metazoa is difficult to constrain.^[1]

Systematics

After Kouchinsky et al. (2009):^[1]

Aculeochrea Val'kov & Sysoev, 1970
- A. ornataVal'kov & Sysoev, 1970
- A. rugosa(Val'kov & Sysoev, 1970)
Anabarites Missarzhevsky in Voronova & Missarzhevsky, 1969
- A. biplicatus(Missarzhevsky, 1989)
- A. compositusMissarzhevsky in Rozanov et al., 1969
- A. convexus(Val'kov & Sysoev, 1970)
- A. dalirenseDevaere et al., 2021^[2]
- A. hariolus(Vasil'eva, 1987)
- A. hexasulcatus(Missarzhevsky, 1974)
- A. korobovi(Missarzhevsky in Rozanov & Missarzhevsky, 1966)
- A. latus(Val'kov & Sysoev, 1970)
- ?A. licis(Missarzhevsky in Rozanov et al., 1969)
- A. missarzhevskyi(Vasil'eva, 1986)
- A. modestusBokova, 1985
- ?A. natellus(Val'kov & Sysoev, 1970)
- A. rectusVasil'eva in Rudavskaya & Vasil'eva, 1984
- A. ternariusMissarzhevsky in Rozanov et al., 1969
- A. tripartitusMissarzhevsky in Rozanov et al., 1969
- A. tristichuusMissarzhevsky in Rozanov et al., 1969
- A. trisulcatusMissarzhevsky in Voronova & Missarzhevsky, 1969
- A. valkovi(Bokova in Bokova & Vasil'eva, 1990)
- ?A. volutus(Missarzhevsky in Rozanov et al., 1969)
Cambrotubulus Missarzhevsky in Rozanov et al., 1969
- C. decurvatusMissarzhevsky in Rozanov et al., 1969
Mariochrea Val'kov, 1982
- M. sinuosaVal'kov, 1982
Selindeochrea Val'kov, 1982
- S. tectaVal'kov, 1982
- S. tricarinata(Missarzhevsky in Rozanov et al., 1969)

References

1 2 Kouchinsky, A.; Bengtson, S.; Feng, W.; Kutygin, R.; Val'kov, A. (2009). "The Lower Cambrian fossil anabaritids: Affinities, occurrences and systematics". Journal of Systematic Palaeontology. 7 (3): 241. doi:10.1017/S1477201909002715. S2CID 140636579.
↑ Devaere, L.; Korn, D.; Ghaderi, A.; Struck, U.; Bavandpur, A. K. (2021). "New and revised small shelly fossil record from the lower Cambrian of northern Iran". Papers in Palaeontology. 7 (4): 2141–2181. Bibcode:2021PPal....7.2141D. doi: 10.1002/spp2.1391 .

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[Kouchinskyetal2009-1] 1 2 Kouchinsky, A.; Bengtson, S.; Feng, W.; Kutygin, R.; Val'kov, A. (2009). "The Lower Cambrian fossil anabaritids: Affinities, occurrences and systematics". Journal of Systematic Palaeontology. 7 (3): 241. doi:10.1017/S1477201909002715. S2CID 140636579.

[2] Devaere, L.; Korn, D.; Ghaderi, A.; Struck, U.; Bavandpur, A. K. (2021). "New and revised small shelly fossil record from the lower Cambrian of northern Iran". Papers in Palaeontology. 7 (4): 2141–2181. Bibcode:2021PPal....7.2141D. doi: 10.1002/spp2.1391 .

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