Clavofabella? sp.
publication ID |
https://doi.org/ 10.5852/ejt.2022.804.1689 |
publication LSID |
lsid:zoobank.org:pub:5EEDA63F-8A81-40DF-B5A4-C799498DC523 |
DOI |
https://doi.org/10.5281/zenodo.6363211 |
persistent identifier |
https://treatment.plazi.org/id/03C687C5-643B-FF94-FD16-F35C4878C1D4 |
treatment provided by |
Felipe |
scientific name |
Clavofabella? sp. |
status |
|
Fig. 5M–R View Fig
Material examined
CHINA • 1 complete carapace (Ad, Fig. 5M View Fig ); Blue Snake section, Gelaohe Formation, sample 19BAI 68; P6M 3847 • 1 complete carapace (A-1, Fig. 5N View Fig ); Blue Snake section, Gelaohe Formation, sample 19BAI 69; P6M 3848 • 1 complete carapace (A-2, Fig. 5O View Fig ); Blue Snake section, Gelaohe Formation, sample 19BAI 68; P6M 3849 • 1 complete carapace (A-3, Fig. 5P View Fig ); Blue Snake section, Gelaohe Formation, sample 19BAI 68; P6M 3850 • 1 complete carapace (A-4, Fig. 5Q View Fig ); Blue Snake section, Gelaohe Formation, sample 19BAI 68; P6M 3851 • 1 complete carapace (A-5, Fig. 5R View Fig ); Blue Snake section, Gelaohe Formation, sample 19BAI 68; P6M 3852 • 10 complete carapaces; Blue Snake section, Gelaohe Formation, sample 19BAI 68. All from the Famennian, late Devonian .
Dimensions
RV: L = 204–805µm, H = 139–554µm, H/L = 0.68–0.74.
LV: L = 202–805µm, H = 136–546µm, H/L = 0.65–0.73.
Remarks
Our material is morphologically close to non-dolonate specimens of Clavofabella multidentata Martinsson, 1955 from the Late Wenlock, Silurian of Mulde, Parish Fröjel, Gotland, Sweden ( Martinsson 1955) but differs by its more rounded cardinal angles, deeper sulcus and larger adductorial pit. It is also close to Libumella ? sp. from the Famennian, late Devonian of the Yjid-Kamenka River section, Pechora Uplift, Russia ( Sobolev 2020) but our material differs from this species by its more laterally compressed free margin, its deeper sulcal pit and its more developed lobation. This species may be new to science but the 16 specimens discovered are not sufficient to establish its generic attribution and to reasonably describe its diagnostic characters. Six different ontogenetic stages are present in our material (from A-5 to Ad). The ontogenetic changes through development cannot be precisely observed because of preservation but it seems that the outline does not show major changes, the sulcus apparently becomes deeper and the anterior lobe more developed.
Occurrence
Samples 19BAI 68, 19BAI 69, Gelaohe Formation, Blue Snake section, Famennian, late Devonian (this work).
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.
Kingdom |
|
Phylum |
|
Class |
|
SubClass |
Podocopa |
Order |
|
SubOrder |
Beyrichiocopina |
SuperFamily |
Primitiopsoidea |
Family |
|
Genus |