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Coralloidoolithus shizuiwanensis
Taxonomy
Paraspheroolithus shizuiwanensis was named by Fang et al. (1998). It is considered to be a form taxon. It is a 3D body fossil.
It was recombined as Coralloidoolithus shizuiwanensis by Wang et al. (2012).
It was recombined as Coralloidoolithus shizuiwanensis by Wang et al. (2012).
Synonymy list
| Year | Name and author |
|---|---|
| 1998 | Paraspheroolithus shizuiwanensis Fang et al. |
| 2000 | Paraspheroolithus shizuiwanensis Fang et al. p. 109 |
| 2002 | Paraspheroolithus shizuiwanensis Zhou and Feng p. 71 |
| 2003 | Paraspheroolithus shizuiwanensis Fang et al. p. 517 |
| 2009 | Paraspheroolithus shizuiwanensis Liang et al. p. 1590 |
| 2012 | Paraspheroolithus shizuiwanensis Wang et al. p. 408 |
| 2012 | Coralloidoolithus shizuiwanensis Wang et al. p. 3742 |
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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.
†Coralloidoolithus shizuiwanensis Fang et al. 1998
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Q. Wang et al. 2012 | Eggs nearly spheroid. The average polar axis is 9.36 cm, average shape index is 87.50. Thickness of egg- shell is 2.60 mm. Thickness of the cone layer is 0.20–0.25 mm, about 1/10 of the eggshell thickness. There are 20–24 cones per square millimeter. The columnar layer is divided into the inner, medial and outer zone. There are brown bands with varying thickness in the medial zone. The outer zone is composed of coralline-like secondary eggshell units. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Late/Upper Cenomanian to the top of the Turonian or 100.50000 to 89.80000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cenomanian - Turonian | China (Zhejiang) | Coralloidoolithus shizuiwanensis (204718) Paraspheroolithus shizuiwanensis (86426 98239 204723) |