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Microderoceras
Taxonomy
Microderoceras was named by Hyatt (1871) [Sepkoski's age data: J Sine-l J Sine-u Sepkoski's reference number: 302]. It is not extant. Its type is Ammonites birchi.
It was assigned to Xipheroceratinae by Bremer (1965); to Ammonoidea by Sepkoski (2002); to Eoderoceratinae by Howarth (2013); and to Eoderoceratidae by Corna and Dommergues (1995), Blau (1998), Meister and Friebe (2003), Edmunds et al. (2016).
It was assigned to Xipheroceratinae by Bremer (1965); to Ammonoidea by Sepkoski (2002); to Eoderoceratinae by Howarth (2013); and to Eoderoceratidae by Corna and Dommergues (1995), Blau (1998), Meister and Friebe (2003), Edmunds et al. (2016).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1871 | Microderoceras Hyatt |
| 1965 | Microderoceras Bremer |
| 1995 | Microderoceras Corna and Dommergues |
| 1998 | Microderoceras Blau p. 224 |
| 2002 | Microderoceras Sepkoski |
| 2003 | Microderoceras Meister and Friebe |
| 2013 | Microderoceras Howarth p. 38 |
| 2016 | Microderoceras Edmunds et al. p. 165 |
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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. †Microderoceras Hyatt 1871
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†Microderoceras birchi Sowerby 1820
†Microderoceras brueckneri Gugenberger 1929
†Microderoceras gigas Quenstedt 1883
†Microderoceras inflatum Buckman 1918
†Microderoceras nautilum Edmunds et al. 2016
†Microderoceras septigerum Buckman 1918
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Turneri to the top of the Early/Lower Pliensbachian or 199.50000 to 184.20000 Ma
Collections (16 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Sinemurian | Morocco | M. sp. (200553 203713) | |
| Late/Upper Sinemurian | Austria | M. gigas (196512) | |
| Obtusum | United Kingdom (Somerset) | M. nautilum (179706) | |
| Raricostatum | Austria | M. sp. 1 (189190 189217) | |
| Sinemurian | United Kingdom (Gloucestershire) | M. birchi (204150) M. scoresbyi (204149) | |
| Sinemurian | Argentina (Mendoza) | M. birchi (181956) | |
| Turneri | France | M. birchi (219984) | |
| Turneri - Obtusum | France | M. birchi, M. septigerum (219990) | |
| Late/Upper Sinemurian - Late/Upper Pliensbachian | Austria | M. gigas (218910) | |
| Sinemurian - Pliensbachian | Austria | M. sp. (218903) | |
| Early/Lower Pliensbachian | Canada (British Columbia) | M. sp. (53253) | |
| Pliensbachian | Chile (Chañaral) | M. sp. (223831) | |
| Pliensbachian | Türkiye | M. brueckneri (218658) |