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Retentactinia
Taxonomy
Retentactinia was named by Won (1997). It is not extant. Its type is Retentactinia repleta.
It was assigned to Retentactiniinae by Won (1997); to Spongentactiniidae by De Wever et al. (2001), Takahashi and Miyake (2014); and to Entactiniidae by Noble et al. (2017).
It was assigned to Retentactiniinae by Won (1997); to Spongentactiniidae by De Wever et al. (2001), Takahashi and Miyake (2014); and to Entactiniidae by Noble et al. (2017).
Species
R. aspera, R. aspinosa, R. delicata, R. dellensus, R. impedita, R. interreticulata, R. kelleri, R. kycungensis, R. levis, R. longa, R. parvisphaera, R. repleta (type species), R. spongiosa
Synonymy list
| Year | Name and author |
|---|---|
| 1997 | Retentactinia Won |
| 2001 | Retentactinia De Wever et al. p. 181 |
| 2014 | Retentactinia Takahashi and Miyake p. 281 |
| 2017 | Retentactinia Noble et al. p. 447 |
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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. †Retentactinia Won 1997
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†Retentactinia aspera Won 1997
†Retentactinia aspinosa Won 1997
†Retentactinia delicata Won 1997
†Retentactinia dellensus Park and Won 2012
†Retentactinia impedita Won 1997
†Retentactinia interreticulata Won 1997
†Retentactinia kelleri Afanasieva 2000
†Retentactinia kycungensis Takahashi 2014
†Retentactinia levis Won 1997
†Retentactinia longa Won 1997
†Retentactinia parvisphaera Takahashi 2014
†Retentactinia repleta Won 1997
†Retentactinia spongiosa Seo and Won 2009
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 1999 | |||||
Age range: base of the Early/Lower Frasnian to the top of the Smithian or 382.31000 to 248.10000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Frasnian | Australia (Western Australia) | R. aspera, R. aspinosa, R. delicata, R. impedita, R. interreticulata, R. levis, R. longa, R. repleta (233596) | |
| Smithian | Vietnam | R. kycungensis, R. parvisphaera (143596 155516) R. parvisphaera (143597) |