| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
No taxonomic data are available
Sister species
M. (Trigonella) arenaria, M. achatina, M. artopta, M. auca, M. austeniana, M. australis, M. axiniformis, M. clathrodon, M. cleryana, M. constricta, M. darwinii, M. diegoana, M. dissimilis, M. emmonsi, M. funerata, M. gibbsana, M. hamiltonensis, M. incomatensis, M. irizari, M. isabelleana, M. lilacea, M. maculata, M. marplatensis, M. mekranensis, M. mera, M. mississippiensis, M. oblonga, M. ovalis, M. patagonica, M. pellucida, M. procrassa, M. pusilla, M. queenslandica, M. sericea, M. solida, M. stultorum, M. tripartita, M. truncata, M. tumbezia, M. tumida, M. turgida, M. utahensis, Trigonella plana
Sister species lacking formal opinion data
Synonymy list
No taxonomic opinions are available
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Burdigalian to the top of the Early/Lower Pliocene or 20.44000 to 3.60000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burdigalian | Venezuela (Falcon) | Mactra maracaibensis (60144 60710) | |
| Late/Upper Miocene | Trinidad and Tobago | Mactra maracaibensis (60630) | |
| Early/Lower Pliocene | Trinidad and Tobago | Mactra maracaibensis (60412 60415) |