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Apalone lima
Taxonomy
Trionyx lima was named by Cope (1869). Its type specimen is AMNH 1167, an osteoderm (fragment of the distal end of a costal plate), and it is a 3D body fossil. Its type locality is Shiloh Marl, which is in a Burdigalian marginal marine marl in the Kirkwood Formation of New Jersey.
It was recombined as Amyda lima by Hay (1908), Hay (1930); it was considered a nomen dubium by Vitek and Joyce (2015); it was recombined as Apalone lima by Weems (2023).
It was recombined as Amyda lima by Hay (1908), Hay (1930); it was considered a nomen dubium by Vitek and Joyce (2015); it was recombined as Apalone lima by Weems (2023).
Synonymy list
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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.
†Apalone lima Cope 1869
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Diagnosis
Reference | Diagnosis | |
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R. E. Weems 2023 | Carapace consists of thickened, flat costal elements with rounded distal edges. Dorsal surface is sculptured with rather high and narrow ridges running across the bone, separated by grooves that are somewhat wider than the ridges. Summits of the ridges are uneven. Connecting ridges are rare, but occasionally, a ridge divides or abruptly ends. Proximally, the ridges are somewhat irregular in their course; distally, they are narrow and much interrupted. Sulcal grooves are absent on the external surface of both the carapace and plastron. |
Measurements
No measurements are available
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Source: f = family, subp = subphylum | |||||
References: Carroll 1988, Ernst and Barbour 1989 |
Age range: base of the Late/Upper Oligocene to the top of the Burdigalian or 27.30000 to 15.98000 Ma
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Oligocene | USA (Virginia) | Apalone lima (167203) | |
Burdigalian | USA (Delaware) | Apalone lima (18579) | |
Burdigalian | USA (New Jersey) | Trionyx lima (type locality: 18587) |