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Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Protosqualus argentinensis
Taxonomy
Protosqualus argentinensis was named by Bogan et al. (2016). Its type specimen is MPM 10023, a tooth (anterolateral tooth), and it is a 3D body fossil. Its type locality is El Calafate airport, which is in a Maastrichtian transition zone/lower shoreface sandstone/conglomerate in the Calafate Formation of Argentina.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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2016 | Protosqualus argentinensis Bogan et al. p. 3–4 fig. 3 |
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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.
†Protosqualus argentinensis Bogan et al. 2016
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Diagnosis
Reference | Diagnosis | |
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S. Bogan et al. 2016 | Very large Protosqualus that is distinguished from remaining species of the genus on the basis of the following combination of characters (autapomorphies marked by an asterisk*): (1) mesial heel with an irregularly denticulated cutting edge* (Fig. 4), (2) mesiodistally wide uvula with its distal end acute and subvertically oriented*, (3) lingually extended uvula, and (4) apicobasally deep tooth root. |
Measurements
No measurements are available
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Source: o = order, subp = subphylum | |||||
References: Carroll 1988, Hendy et al. 2009, Wagner 2023 |
Age range: Late/Upper Maastrichtian or 70.60000 to 66.00000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Maastrichtian | Argentina (Santa Cruz) | Protosqualus argentinensis (type locality: 181059) |