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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Weewarrasaurus
Taxonomy
Weewarrasaurus was named by Bell et al. (2018). Its type is Weewarrasaurus pobeni.
It was assigned to Ornithopoda by Bell et al. (2018).
It was assigned to Ornithopoda by Bell et al. (2018).
Species
W. pobeni (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2018 | Weewarrasaurus Bell et al. p. 7 fig. 3–4 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. R. Bell et al. 2018 | Non-iguanodontian ornithopod characterised by the following unique combination of characters: an elongate dentary ramus with slot-like neurovascular foramina on the lateral surface (ratio of posterior-most foramen length/height ≅ 5.0); large dentary tooth crowns (ratio of apicobasal height of largest posterior crown/total dentary height measured at the same alveolus ≅ 0.5); closely-butting secondary apicobasal ridges with a ‘fan-like’ arrangement on the lingual crown surface mesial and distal to the primary ridge; and weakly-developed apicobasal ridges on the labial crown surface.
Weewarrasaurus can be further differentiated from Q. intrepidus (the only Australian non-iguanodontian ornithopod with an unambiguously assigned dentary) by: ventral margin of dentary sinuous rather than convex; lateral dental parapet is dorsoventrally shallow and convex, rather than dorsoventrally deep, and concave; neurovascular foramina laterally on dentary anteroposteriorly elongate rather than ovate; lateral neurovascular foramina located two-thirds of the distance from the ventral margin of the dentary to the alveolar margin, rather than midway between the margins; viewed medially, dorsoventral height of the dentary ramus (i.e. region ventral to the medial dental parapet) near the posterior end of the tooth row, roughly equals apicobasal tooth crown height, rather than three times crown height; viewed medially, dorsal margin of the dentary ramus shallowly concave, rather than deeply concave; dentary crowns of adjacent tooth families loosely abutting, rather than closely abutting; largest dentary crowns mesiodistally broader than apicobasally tall (ratio of mesiodistal width/apicobasal height ∼1.4, rather than ∼0.75); and primary ridge nearer middle of central crown axis rather than more distally offset. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Benton 1983, Marsh 1875 | |||||
Age range: Early/Lower Cenomanian or 99.60000 to 93.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | Australia (New South Wales) | W. pobeni (99240 204925) |