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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. |