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Parapachycladina
Taxonomy
Parapachycladina was named by Zhang et al. (1997). It is not extant.
It was assigned to Ellisoniidae by Zhang et al. (1997).
It was assigned to Ellisoniidae by Zhang et al. (1997).
Synonymy list
| Year | Name and author |
|---|---|
| 1997 | Parapachycladina Zhang et al. p. 65 |
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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. †Parapachycladina Zhang et al. 1997
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. X. Zhang et al. 1997 | Apparatus seximembrate, composed of ramiform elements with intergrading morphology. Pa extensiform digyrate, Pb extensiform to breviform digyrate, M breviform digyrate, Sa alate with posterior process, Sb breviform digyrate, slightly asymmetrical, Sc bipennate. All elements robust, with discrete peglike denticles containing white matter. Aboral surfaces of all elements with small basal pit and broad zone of recessive basal margin. Cusp and denticles of all elements with longitudinal microstriae. |