| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Mactrodesma was named as a genus. It is not extant.
It was reranked as Mactra (Mactrodesma) by Gardner (1943).
It was assigned to Mactra by Gardner (1943); to Mactrinae by Ward (1992); and to Veneroida by Sepkoski (2002).
It was reranked as Mactra (Mactrodesma) by Gardner (1943).
It was assigned to Mactra by Gardner (1943); to Mactrinae by Ward (1992); and to Veneroida by Sepkoski (2002).
Species
Species lacking formal opinion data
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. †Mactrodesma
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Mactrodesma ponderosa Conrad 1830
†Mactrodesma subponderosa d'Orbigny 1852
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Sanchez Roig 1926 | |||||
Age range
Maximum range based only on fossils: base of the Serravallian to the top of the Gelasian or 13.82000 to 1.80000 Ma
Minimum age of oldest fossil (stem group age): 11.63 Ma
Minimum age of oldest fossil (stem group age): 11.63 Ma
Collections (14 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Serravallian | USA (Maryland) | Spisula subponderosa (79108) | |
| Tortonian | USA (Maryland) | M. subponderosa (70853 71636) | |
| Tortonian | USA (Virginia) | M. subponderosa (71632) | |
| Late/Upper Miocene | USA (Maryland) | M. subponderosa (51722 51727 59303 59304 59305 68978 69016 69032) M. subponderosum (69017) | |
| Gelasian | United Kingdom (England) | Mactra ponderosa (84757) |