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Paramickwitzia
Taxonomy
Paramickwitzia was named by Pan et al. (2020).
It was assigned to Mickwitziidae by Liang et al. (2020), Pan et al. (2020).
It was assigned to Mickwitziidae by Liang et al. (2020), Pan et al. (2020).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2020 | Paramickwitzia Liang et al. pp. Table 1 |
| 2020 | Paramickwitzia Pan et al. p. 525 |
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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. †Paramickwitzia Pan et al. 2020
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†Paramickwitzia boreussinaensis Pan et al. 2020
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. Pan et al. 2020 | Shell gently convex with sub-marginal apex in both valves. Ventral metamorphic shell heart shaped, raised above posterior margin and with low apsacline ventral pseudointerarea. Dorsal metamorphic shell gently dome-shaped with two pairs of lobes around the protegulum; dorsal pseudointerarea orthocline (may later change to catacline during ontogeny). Pseudointer- areas of both valves wide, with poorly defined pedicle groove. Both valves with unevenly distributed open pores along posterior margin and between growth increments on pseudointerarea, sometimes associated with tubular indentations of previously formed shell layers (indicating shell penetrating setae on pseu- dointerareas). External ornament of fine radial costellae and concentric ridges with rounded pustules formed at intersections. Internal surfaces with hollow cone-shaped projections associated with tubules penetrating the secondary but not the primary shell. |