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Grammatodon (Cosmetodon) suzukii
Taxonomy
Grammatodon (Cosmetodon) suzukii was named by Nakazawa (1999). It is not extant. Its type specimen is HP 100050, a shell (Butterflied articulated mould). Its type locality is Festningen, Unit 11, Spitsbergen (1989-91 coll), which is in a Wuchiapingian marine shale in the Kapp Starostin Formation of Svalbard and Jan Mayen.
Sister species lacking formal opinion data
Cosmetodon keyserlingi, Cosmetodon xiapingensis, Cosmetodon xintianmenensis, G. cenomanense, G. cortazari, G. grangeri, G. inequivalvis, G. jurianus, G. kenyanus, G. matapwaensis, G. psittaculum, G. pulchellus, G. rhomboidalis, G. sangamonensis, G. elongatum, G. keyserlingi, G. rayaensis, G. sinemuriensis, G. spilsbiense, G. blakei, G. implicatus, G. obscurus, G. venustus, G. minum
Synonymy list
| Year | Name and author |
|---|---|
| 1999 | Grammatodon (Cosmetodon) suzukii Nakazawa pp. 4-5 figs. Fig 4.1a-b |
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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.
†Grammatodon (Cosmetodon) suzukii Nakazawa 1999
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| valve height | 1 | 19.0 |
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| Source: f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Aberhan et al. 2004 | |||||
Age range: Wuchiapingian or 259.51000 to 254.14000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | Svalbard and Jan Mayen | Grammatodon suzukii (type locality: 117550) |