| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Anechinocardium Hickman p. 21 |
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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. †Anechinocardium Hickman 2015
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†Anechinocardium formosum Hickman 1969
†Anechinocardium weaveri Anderson and Martin 1914
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. S. Hickman 2015 | Strong posterior radial ribs smooth, lacking spines or granules typical of genus; very fine ladder-like cross striae present in intercostal spaces in early stages of develop- ment, disappearing during subsequent growth; lamellae not always aligned from one interspace to the next. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Todd 2001, Aberhan et al. 2004 | |||||
Age range: base of the Priabonian to the top of the Early/Lower Miocene or 37.71000 to 15.98000 Ma
Collections (43 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Priabonian | USA (Oregon) | A. weaveri (39945 40183 40184 40185 40186 40190 40191 40192 40195 40197 40198 40199 126108 233549) Nemocardium formosum (38992 39028) Nemocardium lorenzanum (39037) | |
| Priabonian - Rupelian | USA (Oregon) | A. weaveri (40187) | |
| Rupelian | USA (Oregon) | Nemocardium lorenzanum (37696 37818 37823 37824) | |
| Rupelian | USA (Washington) | Nemocardium lorenzanum (205215) Nemocardium weaveri (62246) | |
| Oligocene | USA (Alaska) | Nemocardium lorenzanum (44082) | |
| Oligocene | USA (Washington) | Cardium lorenzanum (96709) Nemocardium weaveri (208143 208146) | |
| Oligocene | USA (Washinton) | Cardium lorenzanum (239623) | |
| Chattian | USA (Oregon) | Nemocardium lorenzanum (37680 37681) | |
| Chattian | USA (Washington) | Cardium lorenzanum (52364) Nemocardium lorenzanum (52362 52379 91614 91615 91623 180405 194069 208163) | |
| Early/Lower Miocene | USA (Washington) | Cardium lorenzanum (241804 241805 241831) |