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Metadagnoceras
Taxonomy
Metadagnoceras was named by Tozer (1965) [Sepkoski's age data: Tr Olen-u Sepkoski's reference number: 302].
It was assigned to Meekoceratidae by Kummel (1969); to Ceratitida by Sepkoski (2002); and to Khvalynitidae by Tozer (1994), Ehiro et al. (2016).
It was assigned to Meekoceratidae by Kummel (1969); to Ceratitida by Sepkoski (2002); and to Khvalynitidae by Tozer (1994), Ehiro et al. (2016).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1965 | Metadagnoceras Tozer |
| 1969 | Metadagnoceras Kummel |
| 1994 | Metadagnoceras Tozer p. 85 |
| 2002 | Metadagnoceras Sepkoski |
| 2016 | Metadagnoceras Ehiro et al. p. 97 |
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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.
G. †Metadagnoceras Tozer 1965
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†Metadagnoceras freemani Kummel 1968
†Metadagnoceras pulchrum Tozer 1965
†Metadagnoceras rotundum Wang 1978
†Metadagnoceras sinense Wang 1978
†Metadagnoceras terbunicum Arthaber 1911
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Invalid names: Dagnoceras involuta Renz and Renz 1948 [synonym], Stacheites dionysi Renz and Renz 1948 [synonym]
†Metadagnoceras tobini Kummel 1969
†Metadagnoceras youngi Bucher 1989
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 10 | 21.7 | - | - | 21.7 | - | |
| shell diameter | 10 | 45.2 | 29.1 | 63.7 | 46.6 | 11.6 | |
| shell inflation | 10 | 10.4 | - | - | 10.4 | - |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Olenekian | Iran (Isfahan) | M. amiidi (211340) | |
| Spathian | China (Guizhou) | M. sp., M. sinense, M. rotundum (213532) | |
| Spathian | Greece | Stacheites dionysi, Dagnoceras terbunicum, Dagnoceras nopcsanum (112607) | |
| Spathian | Albania | M. terbunicum (97000) | |
| Spathian | USA (Nevada) | M. pulchrum (150311) M. sp. 2 (109431) M. tobini (213026) | |
| Spathian | Canada (British Columbia) | M. pulchrum (105263) | |
| Spathian | USA (Idaho) | M. sp. 1, M. pulchrum (109416) | |
| Spathian | Indonesia (Timor) | M. freemani (111021) | |
| Aegean | USA (Nevada) | M. sp. (106200) M. youngi (112778) |