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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Eoamaltheus
Taxonomy
Eoamaltheus was named by Hillebrandt (1981).
It was assigned to Dubariceratidae by Hillebrandt (2006); and to Fanninoceratinae by Howarth (2013).
It was assigned to Dubariceratidae by Hillebrandt (2006); and to Fanninoceratinae by Howarth (2013).
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Eoamaltheus Hillebrandt |
| 2006 | Eoamaltheus Hillebrandt p. 122 |
| 2013 | Eoamaltheus Howarth p. 42 |
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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. †Eoamaltheus Hillebrandt 1981
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†Eoamaltheus arayaensis Hillebrandt 2006
†Eoamaltheus blancoensis Hillebrandt 2006
†Eoamaltheus intermissus Hillebrandt 2006
†Eoamaltheus meridianus Hillebrandt 1981
†Eoamaltheus multicostatus Hillebrandt 2006
†Eoamaltheus ovatoides Hillebrandt 2006
†Eoamaltheus ovatus Hillebrandt 2006
†Eoamaltheus parameridianus Hillebrandt 2006
†Eoamaltheus paraovatus Hillebrandt 2006
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 138 | 9.86 | 3.00 | 44.5 | 8.80 | 7.75 | |
| shell diameter | 138 | 29.4 | 8.50 | 147.0 | 26.5 | 25.9 | |
| shell inflation | 138 | 12.1 | 3.10 | 71.0 | 11.0 | 12.3 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Ibex or 192.90000 to 184.20000 Ma
Collections (30 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Davoei | Chile | E. ovatoides (181961) | |
| Davoei | Argentina | E. arayaensis (181979 181980 181981 181982 181983) E. blancoensis (181978) E. multicostatus (181973) E. ovatoides, E. blancoensis (181975 181976 181977) E. ovatoides, E. intermissus, E. blancoensis (181974) E. ovatus, E. paraovatus, E. multicostatus (181970) E. parameridianus (181971) E. parameridianus, E. paraovatus (181856) E. parameridianus, E. paraovatus, E. multicostatus (181769) E. paraovatus, E. multicostatus (181773 181972) | |
| Ibex | Argentina (Mendoza) | E. meridianus (181957) | |
| Ibex | Peru | E. meridianus, E. ovatus (181968) | |
| Ibex | Chile | E. meridianus (181962 181964 181965 181966) E. meridianus, E. ovatus (181959 181960 181963 181967) E. ovatus (181969) | |
| Pliensbachian | Argentina (Mendoza) | E. sp. (33729) |