| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Catazyga arcana
Taxonomy
Catazyga arcana was named by Williams (1962). Its type specimen is BB.26733, a shell (exfoliated shell), and it is a 3D body fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Catazyga arcana Williams pp. 247 - 248 figs. P1. XXV, figs. 20-23, 27, 28 |
| 2014 | Catazyga arcana Candela and Harper pp. Supplement 1 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
†Catazyga arcana Williams 1962
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams 1962 | Subpentagonal, unequally biconvex Catazyga with a medianly subcarinate pedicle valve almost as wide as long and over one-half as deep as wide, and a gently convex brachial valve widely sulcate medianly; ventral umbo strongly incurved, interareas short, about one-half as wide as the maximum width of shell; radial ornamentation essentially finely costate with 3 costae per millimetre at a distance of 7.5 mm. from the umbo; dental lamellae short, ventral muscle-field about two-fifths as long as the pedicle valve and over two-thirds as wide as long; dorsal median septum extending anteriorly for one-half of the length of the brachial valve. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: g = genus, f = family, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Hendy 2009, Meyer et al. 2009, Nesnidal et al. 2013 | |||||
Age range: base of the Burrellian to the top of the Cheneyan or 456.60000 to 451.30000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burrellian | United Kingdom (Scotland) | Catazyga arcana (192745) | |
| Cheneyan | United Kingdom (Scotland) | Catazyga arcana (164950 164953) |