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Taxonomy
Lophocardium was named by Fischer (1887) [Sepkoski's age data: T Eo-u R Sepkoski's reference number: 1112]. It is extant. Its type is Cardium cumingii.
It was reranked as Protocardia (Lophocardium) by Olsson (1922); it was reranked as Nemocardium (Lophocardium) by Clark and Durham (1946), Schneider (1995), Moore (2003).
It was assigned to Protocardia by Olsson (1922); to Protocardiinae by Vokes (1980), Woodring (1982); to Veneroida by Sepkoski (2002); and to Nemocardium by Clark and Durham (1946), Schneider (1995), Moore (2003).
It was reranked as Protocardia (Lophocardium) by Olsson (1922); it was reranked as Nemocardium (Lophocardium) by Clark and Durham (1946), Schneider (1995), Moore (2003).
It was assigned to Protocardia by Olsson (1922); to Protocardiinae by Vokes (1980), Woodring (1982); to Veneroida by Sepkoski (2002); and to Nemocardium by Clark and Durham (1946), Schneider (1995), Moore (2003).
Species lacking formal opinion data
Cardium beckei, Cardium indistinctum, Nemocardium actium, Nemocardium arnhemense, Nemocardium birdanum, Nemocardium brabanticum, Nemocardium bunburyi, Nemocardium carteri, Nemocardium carteri, Nemocardium catinus, Nemocardium ciplyense, Nemocardium curtum, Nemocardium dicrepans, Nemocardium doelense, Nemocardium edwardsi, Nemocardium ezaoense, Nemocardium ezoensis, Nemocardium fenestratum, Nemocardium fenestratum, Nemocardium finlayi, Nemocardium gambrinum, Nemocardium harrisi, Nemocardium honi, Nemocardium ibbetsoni, Nemocardium italicum, Nemocardium iwakiense, Nemocardium jogjacartense, Nemocardium khomenkoi, Nemocardium koshikijimense, Nemocardium kovatschense, Nemocardium kyushuensis, Nemocardium lobulatum, Nemocardium lundgreni, Nemocardium marwicki, Nemocardium mokattamensis, Nemocardium musperi, Nemocardium nodaense, Nemocardium parahilliana, Nemocardium parvulum, Nemocardium polyptyctum, Nemocardium proterothetidis, Nemocardium quihi, Nemocardium rutteni, Nemocardium samarangae, Nemocardium samarangae, Nemocardium semidecussatum, Nemocardium semigranulatum, Nemocardium spondyloides, Nemocardium subturgidum, Nemocardium superbum, Nemocardium takaradaiense, Nemocardium tauricum, Nemocardium tristiculum, Nemocardium variolarius, Nemocardium vogeli, Nemocardium yatsushiroense, Nemocardium yokoymai
Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Lophocardium Fischer |
| 1922 | Protocardia (Lophocardium) Olsson p. 229 |
| 1946 | Nemocardium (Lophocardium) Clark and Durham p. 62 |
| 1980 | Lophocardium Vokes p. 129 |
| 1982 | Lophocardium Woodring p. 645 |
| 1995 | Nemocardium (Lophocardium) Schneider p. 339 |
| 2002 | Lophocardium Sepkoski |
| 2003 | Nemocardium (Lophocardium) Moore |
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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.
Subg. Nemocardium (Lophocardium) Fischer 1887
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Lophocardium cumingii Broderip 1834
†Nemocardium (Lophocardium) gurabicum Maury 1917
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| References: Aberhan et al. 2004, Sanchez Roig 1926, Todd 2001 | |||||
Age range
Maximum range based only on fossils: base of the Late/Upper Eocene to the top of the Piacenzian or 37.71000 to 2.58000 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Eocene | Colombia (Sucre) | Nemocardium gurabicum (42841) | |
| Early/Lower Miocene | Ecuador (Esmeraldas) | Lophocardium gurabicum (60753) | |
| Tortonian | Panama | Lophocardium gurabicum (82124 93058 93176) Protocardia gurabica (134661 134662) | |
| Tortonian | Panama (Colon) | Lophocardium gurabicum (145332) | |
| Late/Upper Miocene | Dominican Republic | Protocardia gurabica (58824) | |
| Late/Upper Miocene | Costa Rica (Limon) | Lophocardium gurabicum (96520) | |
| Pliocene | Haiti | Protocardia gurabica (66816) | |
| Piacenzian | Panama | Protocardia gurabica (134663) | |
| Piacenzian | Costa Rica (Limon) | Lophocardium sp. (79801) |