After Systema Naturae 2000 and Skovsted, Peel & Atkins, 2004
<==o †Hyolitha |?- †Haplophrentis carinatus |?-o †Triplicatella Conway Morris, in Bengtson et al., 1990 | |-- †T. disdoma Conway Morris, in Bengtson et al., 1990 | |-- T. sinuosa Skovsted, Peel & Atkins, 2004 | `-- T. peltata Skovsted, Peel & Atkins, 2004 |--o †Hyolithida Syssoiev, 1957 | |-- †Dilytes | |-- †Elegantilites | |-- †Eumorpholites | |-- †Gompholites | |-- †Hyolithes | |-- †Joachimilites | |-- †Maxilites | `-- †Nevadalites `--o †Orthothecida Marek, 1966 |-- †Bactrotheca |-- †Nephrotheca |-- †Orthotheca |-- †Quadrotheca `-- †Tcharatheca
Reference(s):
- Anonymous, 2005: Phylum †Hyolitha
–iNet: Systema Naturae 2000: Classification: http://sn2000.taxonomy.nl/Main/Classification/112846.htm - Anonymous, 2005: Order †Hyolithida
–iNet: Systema Naturae 2000: Classification: http://sn2000.taxonomy.nl/Main/Classification/112944.htm - Anonymous, 2005: Order †Orthothecida
–iNet: Systema Naturae 2000: Classification: http://sn2000.taxonomy.nl/Main/Classification/112945.htm - Skovsted, C. B., Peel, J. S. & Atkins, C. J., 2004: The problematic fossil Triplicatella from the Early Cambrian of Greenland, Canada, and Siberia.
–Canadian Journal of Earth Sciencies: Vol. 41, #11, pp. 1273-1283
[http://article.pubs.nrc-cnrc.gc.ca/ppv/RPViewDoc?_handler_=HandleInitialGet&journal=cjes&volume=41&calyLang=eng&articleFile=e04-066.pdf]