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Dubreuillosaurus valesdunensis
Taxonomy
Poekilopleuron valesdunensis was named by Allain (2002) [taxon named as Poekilopleuron? valesdunensis]. Its type specimen is MNHN 1998-13, a partial skeleton, and it is a 3D body fossil. Its type locality is Conteville, Calvados, which is in a Bathonian shallow subtidal limestone in the Calcaires de Caen Formation of France. It was considered monophyletic by Allain (2002).
It was recombined as Dubreuillosaurus valesdunensis by Allain (2005), Galton and Knoll (2006), Benson et al. (2008), Carrano et al. (2012), Fernandes de Azevedo et al. (2013), Hendrickx and Mateus (2014), Rauhut et al. (2016), Razzolini et al. (2016).
It was recombined as Dubreuillosaurus valesdunensis by Allain (2005), Galton and Knoll (2006), Benson et al. (2008), Carrano et al. (2012), Fernandes de Azevedo et al. (2013), Hendrickx and Mateus (2014), Rauhut et al. (2016), Razzolini et al. (2016).
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Poekilopleuron valesdunensis Allain |
| 2005 | Poekilopleuron valesdunensis Allain p. 75 |
| 2005 | Dubreuillosaurus valesdunensis Allain p. 850 figs. 1-11 |
| 2005 | Poekilopleuron valesdunensis Yates p. 114 |
| 2006 | Dubreuillosaurus valesdunensis Galton and Knoll p. 905 |
| 2008 | Dubreuillosaurus valesdunensis Benson et al. p. 421 |
| 2012 | Dubreuillosaurus valesdunensis Carrano et al. p. 230 |
| 2013 | Dubreuillosaurus valesdunensis Fernandes de Azevedo et al. p. 137 |
| 2014 | Dubreuillosaurus valesdunensis Hendrickx and Mateus p. 26 |
| 2016 | Dubreuillosaurus valesdunensis Rauhut et al. p. 2 |
| 2016 | Dubreuillosaurus valesdunensis Razzolini et al. p. 11 |
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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.
†Dubreuillosaurus valesdunensis Allain 2002
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. Allain 2002 | Tetanurine characterized by a very low skull, at least three times longer than high; parietals not visible in lateral view; a straight medial margin of the upper temporal fenestra; a well developed ventral process on the jugal ramus of the ectopterygoid; a deeply grooved posterior margin of the ectopterygoid ahead of the subtemporal fenestra; a double curvature of the anterodorsal margin of the maxillary nasal ramus; a postorbital ventral process with U-shaped cross section; the absence of a quadrate–quadratojugal fenestra; a large external mandibular fenestra; a mylohyoid foramen largely opened anteroventrally. | |
| R. Allain 2005 | Tetanurine characterized by very low skull, at least three times longer than high; parietals not visible in lateral view; straight medial margin of upper temporal fenestra; well-developed ventral process on jugal ramus of ectopterygoid; deeply grooved posterior margin of ectopterygoid ahead of sub-temporal fenestra; double curvature of anterodorsal margin of maxillary nasal ramus; absence of quadrate–quadratojugal fenestra; large external mandibular fenestra; mylohyoid foramen largely opened anteroventrally; femoral head medioventrally directed; convex anterior surface of distal end of femur. | |
| M. T. Carrano et al. 2012 | Megalosauroid theropod with: (1) ventral notch in posterior outline of braincase between exoccipital-opisthotics and basioccipital (Rauhut 2004); and (2) absence of femoral distal extensor groove (Allain 2005a). |
Measurements
No measurements are available
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| Source: g = genus, o = order | |||||
| References: Marsh 1875, Allain 2005 | |||||
Age range: Middle Bathonian or 168.20000 to 165.30000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Bathonian | France (Basse-Normandie) | Poekilopleuron valesdunensis (type locality: 28444) |