Mostlerium Cheng, 1986
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publication ID |
https://doi.org/ 10.5252/g2017n3a4 |
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publication LSID |
urn:lsid:zoobank.org:pub:603CD230-5931-4506-A122-9CBC2F89189F |
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https://doi.org/10.5281/zenodo.5206739 |
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persistent identifier |
https://treatment.plazi.org/id/0A488798-6A0E-455F-FEA0-FE3B0AFBA89F |
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treatment provided by |
Felipe |
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scientific name |
Mostlerium Cheng, 1986 |
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TYPE SPECIES. — Mostlerium unicum Cheng, 1986 ( Cheng 1986: 136, pl. 4, fig. 7, 8, 20, 23).
AGE AND LOCATION OF TYPE MATERIAL. — Lower Carboniferous, Oklahoma and Arkansas, USA.
TAXON CODE. — 226.
STATUS. —Junior synonym of Pararchocyrtium Deflandre,1972 (herein).
DIAGNOSIS. — “Test as with family [ Archocyrtidae ] but possessing seven spines on the shell surface; three spines located on the upper hemisphere, of which one slightly lower in position and much shorter; four other spines located on the lower hemisphere surrounding the pylome margin. Cephalis subspherical, perforate having large, circular pylome. Pylome margin having expanded skirt; narrow and imperforate.” ( Cheng 1986: 136).
REMARKS
Noble et al. (2008: 47) note the instability of the position of spines (either as feet or lateral spines) in Pararchocyrtium , and question the validity of using the number of feet as a criterion for genus level distinction in several of the archocyrtid taxa. We synonymize herein.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Mostlerium Cheng, 1986
| Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O’Dogherty, Luis 2017 |
Mostlerium
| CHENG Y. - N. 1986: 136 |