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Macrophylloceras
Taxonomy
Macrophylloceras was named as a genus. It is not extant.
It was reranked as Phylloceras (Macrophylloceras) by Imlay (1953).
It was assigned to Phylloceras by Imlay (1953); to Phylloceratidae by Imlay (1962); and to Phylloceratinae by Arkadiev et al. (2000).
It was reranked as Phylloceras (Macrophylloceras) by Imlay (1953).
It was assigned to Phylloceras by Imlay (1953); to Phylloceratidae by Imlay (1962); and to Phylloceratinae by Arkadiev et al. (2000).
Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Phylloceras (Macrophylloceras) Imlay p. 74 |
| 1962 | Macrophylloceras Imlay pp. C-3 |
| 2000 | Macrophylloceras Arkadiev 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. †Macrophylloceras
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†Macrophylloceras ptychostoma Benecke 1865
†Phylloceras (Macrophylloceras) grossicostatum Imlay 1953
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Callovian to the top of the Berriasian or 166.10000 to 139.80000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Callovian | USA (Alaska) | M. grossicostatum (68880 68881 68898) Phylloceras grossicostatum (158650 158707 158880 158903 158916 158920) | |
| Late/Upper Oxfordian - Early/Lower Kimmeridgian | USA (Alaska) | Phylloceras sp. (5232) | |
| Berriasian | Ukraine | M. ptychostoma (183168) |