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Kronosaurus queenslandicus
Taxonomy
Kronosaurus queenslandicus was named by Longman (1924). Its type specimen is QM F1609, a mandible, and it is a 3D body fossil. Its type locality is Dunraven Station, Hughenden area, which is in an Albian marine lime mudstone in the Toolebuc Formation of Australia. It is the type species of Kronosaurus.
It was considered a nomen vanum by Welles (1962).
It was considered a nomen vanum by Welles (1962).
Synonymy list
| Year | Name and author |
|---|---|
| 1924 | Kronosaurus queenslandicus Longman p. 26 figs. Pl. IV |
| 1935 | Kronosaurus queenslandicus White p. 220 figs. text fig. 1; Pl. 9 |
| 1959 | Kronosaurus queenslandicus Anonymous p. 447 |
| 1991 | Kronosaurus queenslandicus Fordyce p. 1173 |
| 2001 | Kronosaurus queenslandicus O'Keefe p. 18 |
| 2003 | Kronosaurus queenslandicus Kear |
| 2006 | Kronosaurus queenslandicus Scanlon p. 283 |
| 2023 | Kronosaurus queenslandicus Poropat et al. p. 148 |
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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.
†Kronosaurus queenslandicus Longman 1924
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. E. White 1935 | "A giant pliosaur with four teeth in the premaxillary, narial opening midway of the length of the skull, no medial palatal vacuity, epipterygoid broad and plate-like, pterygoids covering the brain case ventrally, brain case compact, basioccipital short, basisphenoid exposed on the sides of the neck of the condyle and dorsally through the foramen magnum, paroccipital bar suturally unites with quadrate ramus of the pterygoid; dentaries fused at the symphysis." | |
| B. P. Kear 2003 | "Skull markedly broad and flat with large, dorsally directed orbits (condition reported as being less marked in specimens derived from Doncaster Member deposits, [Molnar, 1982a and Molnar, 1991]); interorbital region bearing up to three distinct longitudinal grooves. Pterygoids extensively underlapping basicranium and with interpterygoid vacuity situated beneath rather than anterior to the basicranium (character state is unknown in K. boyacensis). Paroccipital process contacts quadrate flange of pterygoid at lateral articulation only. Hyoids robust. Posterior mandibular teeth apparently projecting lateral to the snout whilst maxillary teeth project medial to the lower jaw. Zygapophyses apparently absent from both posterior dorsal and caudal vertebrae. Coracoid and pubis both markedly anteroposteriorly elongate." |
Measurements
No measurements are available
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| Source: superf = superfamily, o = order | |||||
| References: Kiessling 2004, Hampe 2005 | |||||
Age range: Late/Upper Albian or 105.30000 to 99.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Albian | Australia (Queensland) | Kronosaurus queenslandicus (type locality: 110465) |