Discretella aff. discreta ( Müller, 1956 )
publication ID |
https://doi.org/ 10.1186/s13358-022-00259-x |
DOI |
https://doi.org/10.5281/zenodo.13128052 |
persistent identifier |
https://treatment.plazi.org/id/038B1D1D-6445-FF9D-FCA1-EF5BD50BF9C1 |
treatment provided by |
Felipe |
scientific name |
Discretella aff. discreta ( Müller, 1956 ) |
status |
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Discretella aff. discreta ( Müller, 1956)
Figs. 15B, J View Fig ; 16C View Fig ?.
1989 Neospathodus bransoni (Müller) ; Tang, p. 417, pl. 29, fig. 10.
2009 Guangxidella ? sp. A; Orchard & Zonneveld, p. 780, fig. 14, parts 33, 34.
2013 Discretella discreta (Müller) ; Yan et al., p. 516, fig. 6W.
Number of specimens:>15
Diagnosis. Segminate P 1 element with rounded, upturned basal cavity at the posteriormost part. Large conspicuous cusp above basal cavity. Discrete, smaller upright denticles in the anterior part.
Description. Tese P 1 elements have markedly discrete denticles and a large cusp. Te lower margin is straight in the anterior and upturned at the posterior part. Te basal cavity is drop-shaped, being rounded at the posterior edge and tapered at the anterior end. Te cusp is relatively large and reclined. A small, accessory, posterior denticle is occasionally present.
Remarks. In comparison to Discretella discreta , this species has a rounded posterior margin of the basal cavity, more discrete denticles and the cusp is relatively larger and often recurved. In lateral view, the lower margin is upturned as in morphotype B of Discretella discreta (Maekawa & Igo, in Shigeta et al., 2014).
Occurrence. Luolou formation, Owenites beds Smithian age, Shanggang road cut, Guangxi, South China.
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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Order |
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SuperFamily |
Gondolelloidae |
Family |
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SubFamily |
Mullerinae |
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