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Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Ptosimini
Taxonomy
Ptosimini was named by Kerremans (1902). It is extant.
It was assigned to Polycestinae by Obenberger (1957), Bellamy (2008).
It was assigned to Polycestinae by Obenberger (1957), Bellamy (2008).
Subtaxa
Synonymy list
Year | Name and author |
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1902 | Ptosimini Kerremans |
1957 | Ptosimini Obenberger p. 312 |
2008 | Ptosimini Bellamy p. 326 |
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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.
Tr. Ptosimini Kerremans 1902
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G. Ptosima Dejean 1833
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†Ptosima abyssa Wickham 1912
†Ptosima schaefferi Wickham 1912
†Ptosima silvatica Wickham 1914
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: c = class, p = phylum | |||||
References: Bush and Bambach 2015, Kiessling 2004 |
Age range
Maximum range based only on fossils: Chadronian or 37.00000 to 33.90000 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Chadronian | USA (Colorado) | Acmaeodera abyssa (106382) Acmaeodera schaefferi (106381) Ptosima silvatica (106384) |