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Becklespinax altispinax
Taxonomy
Acrocanthosaurus altispinax was named by Paul (1988). It is not extant. Its type specimen is BMNH R.1828. Its type locality is Battle, Hastings (Hastings Beds), which is in a Berriasian/Valanginian marine claystone in the Hastings Beds Formation of the United Kingdom.
It was recombined as Becklespinax altispinax by Olshevsky (1991), Olshevsky (1992), Vickaryous and Ryan (1997), Holtz et al. (2004), Naish and Martill (2007), Carrano et al. (2012); it was recombined as Altispinax altispinax by Ruiz-Omeñaca and Canudo (2003); it was synonymized objectively with Altispinax dunkeri by Maisch (2016).
It was recombined as Becklespinax altispinax by Olshevsky (1991), Olshevsky (1992), Vickaryous and Ryan (1997), Holtz et al. (2004), Naish and Martill (2007), Carrano et al. (2012); it was recombined as Altispinax altispinax by Ruiz-Omeñaca and Canudo (2003); it was synonymized objectively with Altispinax dunkeri by Maisch (2016).
Synonymy list
| Year | Name and author |
|---|---|
| 1988 | Acrocanthosaurus altispinax Paul p. 314 |
| 1991 | Becklespinax altispinax Olshevsky pp. 22-23 |
| 1992 | Becklespinax altispinax Olshevsky p. 130 |
| 1997 | Becklespinax altispinax Vickaryous and Ryan p. 488 |
| 2003 | Altispinax altispinax Ruiz-Omeñaca and Canudo p. 297 |
| 2004 | Becklespinax altispinax Holtz, Jr. et al. p. 73 |
| 2007 | Becklespinax altispinax Naish and Martill p. 502 |
| 2012 | Becklespinax altispinax Carrano et al. pp. 252-253 |
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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.
†Becklespinax altispinax Paul 1988
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order | |||||
| References: Marsh 1875, Kiessling 2004 | |||||
Age range: base of the Late/Upper Berriasian to the top of the Valanginian or 139.10000 to 132.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Berriasian - Valanginian | United Kingdom (England) | Megalosaurus bucklandi (type locality: 52571) |