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Macrophragma
Taxonomy
Petaloconchus (Macrophragma) was named by Carpenter (1857). It is extant.
It was reranked as Macrophragma by Todd (2001).
It was assigned to Petaloconchus by Carpenter (1857), Ladd (1972); and to Vermetidae by Todd (2001).
It was reranked as Macrophragma by Todd (2001).
It was assigned to Petaloconchus by Carpenter (1857), Ladd (1972); and to Vermetidae by Todd (2001).
Species lacking formal opinion data
Entered
by A. Hendy on 2008-01-27; modified by A. Hendy on 2025-06-26
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.
G. Macrophragma Carpenter 1857
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Early/Lower Miocene to the top of the Late/Upper Pleistocene or 23.04000 to 0.01170 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Miocene | Brazil (Maranhao) | Petaloconchus subvarians (112596) | |
| Late/Upper Miocene | Marshall Islands | Petaloconchus lamellosus (77976) Petaloconchus merkana (43339 77991) Petaloconchus merkana, Petaloconchus lamellosus (77975) | |
| Late/Upper Miocene | Palau | Petaloconchus merkana (77930) | |
| Early/Lower Pleistocene | Marshall Islands | Petaloconchus lamellosus (43338) | |
| Late/Upper Pleistocene | Marshall Islands | Petaloconchus merkana (43336) |