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Macron
Taxonomy
Macron was named by Adams and Adams (1853) [Sepkoski's age data: T Mi-l R Sepkoski's reference number: 854]. It is extant.
It was assigned to Neptuneidae by Grant and IV and Gale (1931); to Buccinidae by Addicott (1970); to Pseudolivinae by Vermeij (1998); to Neogastropoda by Sepkoski (2002); and to Pseudolividae by Nielsen and Frassinetti (2003).
It was assigned to Neptuneidae by Grant and IV and Gale (1931); to Buccinidae by Addicott (1970); to Pseudolivinae by Vermeij (1998); to Neogastropoda by Sepkoski (2002); and to Pseudolividae by Nielsen and Frassinetti (2003).
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1853 | Macron Adams and Adams |
| 1928 | Macroniscus Thiele |
| 1931 | Macron Grant, IV and Gale p. 649 |
| 1970 | Macron Addicott p. 94 |
| 1998 | Macron Vermeij p. 55 |
| 2002 | Macron Sepkoski |
| 2002 | Macroniscus Sepkoski |
| 2003 | Macron Nielsen and Frassinetti p. 91 |
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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. Macron Adams and Adams 1853
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†Macron aethiops Reeve 1847 [ribbed macron]
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Invalid names: Pseudoliva kellettii Adams 1855 [synonym]
†Macron hartmanni Hertlein and Jordan 1927
Macron lividus Adams 1855 [livid macron]
†Macron merriami Arnold 1907
†Macron vermeiji Nielsen and Frassinetti 2003
Invalid names: Macroniscus Thiele 1928 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Reference: Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: base of the Early/Lower Miocene to the top of the Late/Upper Pleistocene or 23.04000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 15.98 Ma
Minimum age of oldest fossil (stem group age): 15.98 Ma
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Miocene | Mexico (Baja California Sur) | M. hartmanni (43814 96570) | |
| Middle Miocene | USA (California) | M. merriami (237493) | |
| Tortonian | Chile | M. vermeiji (68325) | |
| Pliocene | Chile | M. escalonia (142301) | |
| Piacenzian | Chile | M. escalonia (142300) | |
| Pleistocene | Mexico (Baja California) | M. lividus (96592) | |
| Pleistocene | Mexico (Sonora) | M. aethiops (96565) | |
| Quaternary | USA (California) | M. lividus (37939 37943) | |
| Middle Pleistocene | USA (California) | M. aethiops (202968 203113 203114) M. lividus (202492 223039) | |
| Late/Upper Pleistocene | Mexico (Baja California) | M. lividus (96591) | |
| Late/Upper Pleistocene | USA (California) | M. lividus (160361 223067 240594 240609) M. lividus, M. kellettii (222660) |