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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Sigilmassasaurus
Taxonomy
Sigilmassasaurus was named by Russell (1996).
It was synonymized subjectively with Carcharodontosaurus by Sereno et al. (1998), Brusatte and Sereno (2007), Taquet (2010), Cavin et al. (2010); it was synonymized subjectively with Spinosaurus by Ibrahim et al. (2014), Ibrahim et al. (2017), Smyth et al. (2020), Ibrahim et al. (2020).
It was assigned to Sigilmassasauridae by Russell (1996); to Tetanurae by Holtz et al. (2004), McFeeters et al. (2013); to Spinosauridae by Novas et al. (2013), Evers et al. (2015); to Spinosaurini by Arden et al. (2019); and to Spinosaurinae by Hendrickx et al. (2016), Malafaia et al. (2020), Barker et al. (2021).
It was synonymized subjectively with Carcharodontosaurus by Sereno et al. (1998), Brusatte and Sereno (2007), Taquet (2010), Cavin et al. (2010); it was synonymized subjectively with Spinosaurus by Ibrahim et al. (2014), Ibrahim et al. (2017), Smyth et al. (2020), Ibrahim et al. (2020).
It was assigned to Sigilmassasauridae by Russell (1996); to Tetanurae by Holtz et al. (2004), McFeeters et al. (2013); to Spinosauridae by Novas et al. (2013), Evers et al. (2015); to Spinosaurini by Arden et al. (2019); and to Spinosaurinae by Hendrickx et al. (2016), Malafaia et al. (2020), Barker et al. (2021).
Synonymy list
| Year | Name and author |
|---|---|
| 1996 | Sigilmassasaurus Russell p. 361 figs. 10-12 |
| 2004 | Sigilmassasaurus Holtz, Jr. et al. p. 74 |
| 2013 | Sigilmassasaurus McFeeters et al. p. 636 |
| 2013 | Sigilmassasaurus Novas et al. p. 186 |
| 2015 | Sigilmassasaurus Evers et al. p. 8 |
| 2016 | Sigilmassasaurus Hendrickx et al. p. 15 |
| 2019 | Sigilmassasaurus Arden et al. p. 279–280 |
| 2020 | Sigilmassasaurus Malafaia et al. p. 432 |
| 2021 | Sigilmassasaurus Barker et al. p. 8 |
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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. †Sigilmassasaurus Russell 1996
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. A. Russell 1996 | Apormorphies in the cervical vertebrae for the genus and family include: spines short, wider transversely than long; intercentral articulations wider than high, exceeding length of centrum in width; transverse planes through anterior and posterior intercentral articulations converge dorsally, indicating cervical series "U"-shaped in lateral aspect; parapophyses project ventrolaterally beyond rim of intercentral articulations; hypapophyses more powerfully developed in middle of cervical series than in region of cervico-dorsal transition. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Marsh 1875 | |||||
Collections
No collection or age range data are available