Published February 7, 2019
| Version v1
Taxonomic treatment
Open
Cyclotron Rushton 1969
Description
Genus Cyclotron Rushton, 1969
Type species: Polyphyma lapworthi Groom, 1902; Malvern Hills, England; Cambrian, Furonian, Olenus Biozone (Groom 1902).
Remarks.—Phosphatocopid taxonomy was for a long time based on external shield features, such as the occurrence and location of lobes and spines, and the general outline of the shield (e.g., Maas et al. 2003). Although minute details also of the ventral appendage morphology have been described (Müller 1979, 1982; Maas et al. 2003; Maas and Waloszek 2005; Zhang et al. 2010), such features remain unknown for most species.
Notes
Published as part of Olempska, Ewa, Maas, Andreas, Waloszek, Dieter & Eriksson, Mats E., 2019, Exceptionally well-preserved Orsten-type phosphatocopid crustaceans from the Cambrian of Poland, pp. 19-39 in Acta Palaeontologica Polonica 64 (1) on page 22, DOI: 10.4202/app.00553.2018, http://zenodo.org/record/10626598
Files
Files
(960 Bytes)
| Name | Size | Download all |
|---|---|---|
|
md5:58bb85ab75058ab88a98e9720f0319ca
|
960 Bytes | Download |
System files
(8.2 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:d051e2281810785986065327b9bf6a02
|
8.2 kB | Download |
Linked records
Additional details
Identifiers
Biodiversity
- Family
- Hipponicharionidae
- Genus
- Cyclotron
- Kingdom
- Animalia
- Order
- Phosphatocopida
- Phylum
- Arthropoda
- Scientific name authorship
- Rushton
- Taxon rank
- genus
- Taxonomic concept label
- Cyclotron Rushton, 1969 sec. Olempska, Maas, Waloszek & Eriksson, 2019
References
- Groom, T. 1902. On Polyphyma, a new genus belonging to the Leperditiade, from the Cambrian shales of Malvern. The Quarterly journal of the Geological Society of London 58: 83 - 88.
- Maas, A., Waloszek, D., and Muller, K. J. 2003. Morphology, ontogeny and phylogeny of the Phosphatocopina (Crustacea) from the Upper Cambrian " Orsten " of Sweden. Fossils and Strata 49: 1 - 238.
- Muller, K. J. 1979. Phosphatocopine ostracodes with preserved appendages from the Upper Cambrian of Sweden. Lethaia 12: 1 - 27.
- Muller, K. J. 1982. Hesslandona unisulcata sp. nov. with phosphatised appendages from Upper Cambrian " Orsten " of Sweden. In: R. H. Bate, E. Robinson, and L. M. Sheppard (eds.), Fossil and Recent Ostracods, 276 - 304. Ellis Horwood, Chichester.
- Waloszek, D., Chen, J. - Y., Maas, A., and Wang, X. - Q. 2005. Early Cambri- an arthropods - new insights into arthropod head and structural evolution. Arthropod Structure and Development 34: 189 - 205.