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Cleiothyridina excavata
Taxonomy
Athyris excavata was named by Grabau (1931). It is a 3D body fossil. Its type locality is Jisu Honguer 1196, Hemiptychina Bed, which is in a Wordian carbonate limestone in the Zhesi Formation of China.
It was recombined as Cleiothyridina excavata by Shen and He (1991).
It was recombined as Cleiothyridina excavata by Shen and He (1991).
Sister species lacking formal opinion data
Athyris capillata, Athyris capillata, Athyris capillata, Athyris capillata, Athyris capillata, Athyris capillata, Athyris capillata, Athyris pectinifera, Athyris pectinifera, C. angelicoides, C. atrypoides, C. atrypoides, C. australis, C. coloradensis, C. coloradoensis, C. crassicardinalis, C. deroissii, C. devonica, C. elegans, C. glabistria, C. glabristria, C. hirsuta, C. hirusta, C. humerosa, C. incrassata, C. ingens, C. kusbassica, C. lata, C. media, C. miettensis, C. nantanensis, C. offirmata, C. parvirostra, C. pecosii, C. pecossi, C. penta, C. pravirostra, C. reticulata, C. roissyi, C. rossyi, C. roysii, C. segmentata, C. squamosa, C. submabranacea, C. submabrancea, C. transversa, C. wiragullensis, C. devonica, C. pecosii
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Athyris excavata Grabau p. 117 figs. Pl 6, figs 5,6 |
| 1991 | Cleiothyridina excavata Shen and He |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Cleiothyridina excavata Grabau 1931
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 23.0 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Wordian to the top of the Changhsingian or 266.90000 to 251.90200 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wordian | China (Nei Mongol) | Athyris excavata (type locality: 109209) | |
| Changhsingian | China (Chongqing) | Athyris excavata (94984) |