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Pyrisinella
Taxonomy
Pyrisinella was named by Di Martino and Taylor (2012). Its type is Setosinella meniscacantha. It is the type genus of Pyrisinellidae. It was considered paraphyletic by Di Martino and Taylor (2012).
It was assigned to Pyrisinellidae by Gordon (2012), Di Martino and Taylor (2012).
It was assigned to Pyrisinellidae by Gordon (2012), Di Martino and Taylor (2012).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Pyrisinella Di Martino and Taylor pp. 1-20 figs. 1-8 |
| 2012 | Pyrisinella Gordon p. 3 |
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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. †Pyrisinella Di Martino and Taylor 2012
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†Pyrisinella meniscacantha Taylor and McKinney 2006
†Pyrisinella primazelandiae Gordon and Taylor 2015
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. Di Martino and P. D. Taylor 2012 | Colony encrusting, multiserial, unilaminar. Autozooids small, distinct, rounded polygonal, longer than broad, separated by deep furrows. Gymnocyst convex, narrow, best developed proximally. Cryptocyst extensively developed, depressed, flat and densely granular, bounded by pear-shaped ridge comprising mural rim and distal rim of opesia. Opesia trifoliate. Oral spines present. Ovicell hyperstomial, globular, prominent, smooth with a dumbbell-shaped opening, resting on proximal gymnocyst of distal zooid and indented its mural rim. Intramural buds common. Closure plates depressed beneath level of cryptocyst. Avicularia interzooidal or more commonly adventitious. Distal pore chamber larger than distolateral pore chambers; pore windows oval. Ancestrula having the appearance of a small astogenetically mature autozooid with an indeterminate number of spine bases, budding a single distal zooid. |
Measurements
No measurements are available
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| Source: o = order, c = class, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Smith et al. 2006 | |||||
Age range: base of the Late/Upper Maastrichtian to the top of the Early/Lower Eocene or 72.20000 to 48.07000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Maastrichtian | USA (Alabama) | Setosinella meniscacantha (214078) | |
| Early/Lower Eocene | New Zealand (Chatham Island) | P. primazelandiae (172944) |