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Marginifera (Arenaria) excavata
Taxonomy
Marginifera excavata was named by Waagen (1884). It is a 3D body fossil. Its type locality is Nilawan, basal Lower Productus-limestone, Salt Range, which is in a Wordian shoreface sandstone in the Amb Formation of Pakistan.
It was recombined as Marginifera (Arenaria) excavata by Chen and Shi (2006).
It was recombined as Marginifera (Arenaria) excavata by Chen and Shi (2006).
Sister species lacking formal opinion data
M. chuchuhuai, M. cristobalensis, M. grandis, M. gratiosa, M. himalayaensis, M. manzanica, M. mapingensis, M. opima, M. pusilla, M. texana, M. transversa, M. typica, M. wabashenis, Productus gerassimovi, Productus gratiosus, Productus gratiosus, Productus helicus, Productus helicus, Productus wanneri
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1884 | Marginifera excavata Waagen p. 715 figs. Pl 78, figs 2-3 |
| 1936 | Marginifera excavata Douglas p. 36 |
| 1944 | Marginifera vestita Reed p. 91 figs. Pl 20, fig 16 |
| 1968 | Marginifera excavata Grant p. 24 figs. Pl 7, figs 2,3; text-figs 16,17 |
| 2006 | Marginifera (Arenaria) excavata Chen and Shi p. 143 |
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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.
†Marginifera (Arenaria) excavata Waagen 1884
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Invalid names: Marginifera vestita Reed 1944 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 1 | 13.0 | - | - | - | - | |
| valve height | 3 | 9.06 | 8.50 | 10.0 | 8.75 | 0.804 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Williams et al. 2000, Aberhan et al. 2004 | |||||
Age range: base of the Wordian to the top of the Capitanian or 266.90000 to 259.51000 Ma
Collections (24 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Roadian - Wordian | Iran | Marginifera excavata (211727) | |
| Wordian | Pakistan | Marginifera excavata (90254 109268 109301 125810 125851 125869 125880) Marginifera vestita (125818 125819 125820 125821 125822 125827 125876) | |
| Wordian - Capitanian | Pakistan | Marginifera excavata, Marginifera vestita (127031) | |
| Capitanian | Pakistan | Marginifera excavata (109266 109283 109284 109285 109286 109309 109312 109314) |