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Aegirosaurus
Taxonomy
Aegirosaurus was named by Bardet and Fernandez (2000).
It was assigned to Thunnosauria by Maisch and Matzke (2000); to Ophthalmosauria by Druckenmiller and Maxwell (2010); to Platypterygiinae by Fischer et al. (2012), Arkhangelsky and Zverkov (2014) and Robert et al. (2014); and to Ophthalmosauridae by McGowan and Motani (2003), Maisch (2010), Fischer et al. (2011), Fischer et al. (2013) and Ji et al. (2016).
It was assigned to Thunnosauria by Maisch and Matzke (2000); to Ophthalmosauria by Druckenmiller and Maxwell (2010); to Platypterygiinae by Fischer et al. (2012), Arkhangelsky and Zverkov (2014) and Robert et al. (2014); and to Ophthalmosauridae by McGowan and Motani (2003), Maisch (2010), Fischer et al. (2011), Fischer et al. (2013) and Ji et al. (2016).
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Aegirosaurus Bardet and Fernandez p. 504 |
| 2000 | Aegirosaurus Maisch and Matzke pp. 100 |
| 2003 | Aegirosaurus McGowan and Motani |
| 2010 | Aegirosaurus Druckenmiller and Maxwell |
| 2010 | Aegirosaurus Maisch |
| 2011 | Aegirosaurus Fischer et al. |
| 2012 | Aegirosaurus Fischer et al. |
| 2013 | Aegirosaurus Fischer et al. |
| 2014 | Aegirosaurus Arkhangelsky and Zverkov |
| 2014 | Aegirosaurus Robert et al. p. 22 fig. 15 |
| 2016 | Aegirosaurus Ji et al. p. 13 |
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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. †Aegirosaurus Bardet and Fernandez 2000
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†Aegirosaurus leptospondylus Wagner 1853
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Invalid names: Macropterygius posthumus Barthel 1990 [synonym], Macropterygius trigonus Owen 1840 [synonym]
Invalid names: Ichthyosaurus trigonus posthumus Bauer 1898 [nomen dubium]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. W. Maisch and A. T. Matzke 2000 | "Medium-sized ichthyosaur (known specimens are probably all juveniles)
less than 2m long, snout gently merging into skull roof, external naris bilobate, postorbital skull segment very short, squamosal reduced and delicate, dentition not reduced, tooth crowns smooth, humerus with distal articulation facet for intermedium (neotype only), anterior preaxial accessory finger present which does not contact humerus, 5 primary digits in forefin, hindfin with three primary digits and one postaxial accessory, ischiopubic plate present." | |
| C. Ji et al. 2016 | Snout long and slender; coracoid anterior margin without notch; humerus wider distally than proximally, with three distal facets, the middle one for the intermedium being smallest, the anterior and posterior ones for the radius and ulna; ulna much larger than radius; intermedium longer than wide; six digits, elements in longest digit probably >20; phalanges polygo- nal rather than rounded, tightly packed; ischium and pubis completely fused, without a foramen.
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Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Early/Lower Tithonian to the top of the Late/Upper Valanginian or 150.80000 to 136.40000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Tithonian | Germany (Bayern) | A. leptospondylus (102300) | |
| Early/Lower Tithonian | Germany (Bavaria) | A. leptospondylus (102301) | |
| Late/Upper Valanginian | France (Rhône-Alpes) | A. sp. (104753) |