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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Elasmaria
Taxonomy
Elasmaria was named by Calvo et al. (2007). It was considered monophyletic by Calvo et al. (2007).
It was assigned to Euiguanodontia by Calvo et al. (2007), Rozadilla et al. (2019) and Novas et al. (2019); to Iguanodontia by Dieudonné et al. (2020); and to Ornithopoda by Madzia et al. (2018), Herne et al. (2019) and Moyano-Paz et al. (2022).
It was assigned to Euiguanodontia by Calvo et al. (2007), Rozadilla et al. (2019) and Novas et al. (2019); to Iguanodontia by Dieudonné et al. (2020); and to Ornithopoda by Madzia et al. (2018), Herne et al. (2019) and Moyano-Paz et al. (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 2007 | Elasmaria Calvo et al. p. 472 |
| 2018 | Elasmaria Madzia et al. p. 973 fig. 4 |
| 2019 | Elasmaria Herne et al. p. 578 |
| 2019 | Elasmaria Novas et al. p. 230 |
| 2019 | Elasmaria Rozadilla et al. p. 2044 |
| 2020 | Elasmaria Dieudonné et al. |
| 2022 | Elasmaria Moyano-Paz et al. p. 17 |
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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.
Unr. †Elasmaria Calvo et al. 2007
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G. †Atlascopcosaurus Rich and Vickers-Rich 1989
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†Atlascopcosaurus loadsi Rich and Vickers-Rich 1989
G. †Leaellynasaura Rich and Vickers-Rich 1989
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†Leaellynasaura amicagraphica Rich and Vickers-Rich 1989
G. †Mahuidacursor Cruzado-Caballero et al. 2019
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†Mahuidacursor lipanglef Cruzado-Caballero et al. 2019
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. O. Calvo et al. 2007 | Two unambiguous synapomorphies support the monophyly of Elasmaria: large basal euiguanodontian with well-developed epipophyses on the third cervical and presence of thin ossified plates on thorax.
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| S. Rozadilla et al. 2019 | Elasmaria is diagnosed by the following synapomorphies: dentary teeth with an ornate labial surface; cervical centra anteroposteriorly longer than dorsoventrally high and bearing a sharp ventral longitudinal ridge; laterally bowed humerus; weakly developed deltopectoral crest of humerus; greater trochanter of the femur with a sigmoidal outline in proximal view; and an anteroproximally–posterodistally elongated tibial cotyle of the calcaneum. |
Measurements
No measurements are available
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| Source: g = genus, subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983, Peczkis 1995 | |||||
Age range: base of the Late/Upper Barremian to the top of the Early/Lower Maastrichtian or 130.00000 to 66.00000 Ma
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Valanginian - Hauterivian | Brazil (Bahia) | Tietasaura derbyiana (235693) | |
| Late/Upper Barremian | Australia (Victoria) | Atlascopcosaurus loadsi, Galleonosaurus dorisae (51961) | |
| Late/Upper Aptian | Australia (Victoria) | Galleonosaurus dorisae (218992) | |
| Early/Lower Albian | Australia (Victoria) | Hypsilophodontidae indet. (38540) Hypsilophodontidae indet. A, Hypsilophodontidae indet. B (38534 38537 38542) Leaellynasaura amicagraphica, Atlascopcosaurus loadsi, Diluvicursor pickeringi, Galleonosaurus dorisae (118946) | |
| Late/Upper Cretaceous | South Africa (Western Cape) | Kangnasaurus coetzeei (68017) | |
| Middle Cenomanian - Early/Lower Turonian | Argentina (Río Negro) | Chakisaurus nekul (180530) | |
| Middle Turonian - Late/Upper Turonian | Argentina (Neuquén) | Iguanodontia indet. (49097 49098) | |
| Middle Coniacian - Late/Upper Coniacian | Argentina (Neuquén) | Iguanodontia indet. (55444) | |
| Santonian | Argentina (Neuquén) | Mahuidacursor lipanglef, Ornithopoda indet. (147178) | |
| Campanian | Argentina (Santa Cruz) | Talenkauen santacrucensis (52980 237047) | |
| Late/Upper Campanian | Antarctica | Trinisaura santamartaensis (47059) | |
| Early/Lower Maastrichtian | Argentina (Santa Cruz) | Isasicursor santacrucensis (206970 227006) | |
| Early/Lower Maastrichtian | Antarctica | Morrosaurus antarcticus (176012) |