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Asthenognathinae
Taxonomy
Asthenognathinae was named by Stimpson (1858). It is extant.
It was assigned to Pinnotheroidea by Karasawa (1993); to Pinnotheridae by Rathbun (1909), Schweitzer and Feldmann (1999), Schweitzer and Feldmann (2001), De Angeli and Garassino (2006); and to Varunidae by Schweitzer et al. (2010), Schweitzer et al. (2023).
It was assigned to Pinnotheroidea by Karasawa (1993); to Pinnotheridae by Rathbun (1909), Schweitzer and Feldmann (1999), Schweitzer and Feldmann (2001), De Angeli and Garassino (2006); and to Varunidae by Schweitzer et al. (2010), Schweitzer et al. (2023).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Asthenognathinae Stimpson |
| 1909 | Asthenognathinae Rathbun p. 111 |
| 1993 | Asthenognathinae Karasawa p. 82 |
| 1999 | Asthenognathinae Schweitzer and Feldmann p. 257 |
| 2001 | Asthenognathinae Schweitzer and Feldmann p. 340 |
| 2006 | Asthenognathinae De Angeli and Garassino p. 297 |
| 2010 | Asthenognathinae Schweitzer et al. p. 142 |
| 2023 | Asthenognathinae Schweitzer et al. p. 6 |
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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.
Subfm. Asthenognathinae Stimpson 1858
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G. Asthenognathus Stimpson 1858
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†Asthenognathus atlanticus Monod 1933
†Asthenognathus cornishorum Schweitzer and Feldmann 1999
†Asthenognathus globosa Karasawa 1990
†Asthenognathus hexagonum Rathbun 1909
†Asthenognathus inaequipes Stimpson 1858
†Asthenognathus laverdensis De Angeli and Garassino 2006
†Asthenognathus microspinus Casadio et al. 2004
†Asthenognathus rakosensis Müller 2006
†Asthenognathus urretae Schweitzer and Feldmann 2001
G. †Globihexapus Schweitzer and Feldmann 2001
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†Globihexapus kosekii Kato 2005
†Globihexapus paxillus Schweitzer and Feldmann 2001
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: superf = superfamily, c = class | |||||
| References: Aberhan 1992, Valdez and Clapham 2023 | |||||
Age range
Maximum range based only on fossils: base of the Lutetian to the top of the Pliocene or 48.07000 to 2.58000 Ma
Minimum age of oldest fossil (stem group age): 41.03 Ma
Minimum age of oldest fossil (stem group age): 41.03 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lutetian | Argentina (Santa Cruz) | Asthenognathus urretae (202316) | |
| Rupelian | Italy (Vicenza) | Asthenognathus laverdensis (127496) | |
| Chattian | USA (Washington) | Asthenognathus cornishorum (221302 221303 221304) | |
| Early/Lower Miocene | Argentina (Rio Negro) | Asthenognathus microspinus (45689) | |
| Burdigalian | Argentina | Asthenognathus urretae (43002) | |
| Burdigalian | USA (Oregon) | Globihexapus paxillus (202317) | |
| Middle Miocene | USA (Oregon) | Globihexapus paxillu (202348) | |
| Badenian | Hungary | Asthenognathus rakosensis (149366) | |
| Pliocene | Italy (Grosseto) | Asthenognathus sp. (221599) |