Article · Wikipedia archive · Last revised Jul 23, 2026

Anabaritid

The anabaritids or angustiochreids are enigmatic tubular, mineralizing organisms with a trifold symmetry known from their Lower Cambrian fossils. They may have represented cnidaria, but their affinity within the Metazoa is difficult to constrain.

Last revised
Jul 23, 2026
Read time
≈ 1 min
Length
316 w
Citations
3
Source
Anabaritid
Temporal range: (Possible Ediacarian Record*)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: incertae sedis
Family: Anabaritidae
Missarzhevsky, 1974
Genera

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. ornata Val'kov & Sysoev, 1970
    • A. rugosa (Val'kov & Sysoev, 1970)
  • Anabarites Missarzhevsky in Voronova & Missarzhevsky, 1969
    • A. biplicatus (Missarzhevsky, 1989)
    • A. compositus Missarzhevsky in Rozanov et al., 1969
    • A. convexus (Val'kov & Sysoev, 1970)
    • A. dalirense Devaere et al., 20212
    • 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. modestus Bokova, 1985
    • ?A. natellus (Val'kov & Sysoev, 1970)
    • A. rectus Vasil'eva in Rudavskaya & Vasil'eva, 1984
    • A. ternarius Missarzhevsky in Rozanov et al., 1969
    • A. tripartitus Missarzhevsky in Rozanov et al., 1969
    • A. tristichuus Missarzhevsky in Rozanov et al., 1969
    • A. trisulcatus Missarzhevsky 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. decurvatus Missarzhevsky in Rozanov et al., 1969
  • Mariochrea Val'kov, 1982
    • M. sinuosa Val'kov, 1982
  • Selindeochrea Val'kov, 1982
    • S. tecta Val'kov, 1982
    • S. tricarinata (Missarzhevsky in Rozanov et al., 1969)
References

References

  1. 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.