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Stalicoolithidae
Taxonomy
Stalicoolithidae was named by Wang et al. (2012). It is considered to be a form taxon. Its type is Stalicoolithus.
It was assigned to Dinosauria by Wang et al. (2012).
It was assigned to Dinosauria by Wang et al. (2012).
Subtaxa
Synonymy list
Year | Name and author |
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2012 | Stalicoolithidae Wang et al. p. 3741 |
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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.
Fm. †Stalicoolithidae Wang et al. 2012
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Diagnosis
Reference | Diagnosis | |
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Q. Wang et al. 2012 | Small spheroid or nearly spheroid eggs, irregularly arranged in the nest. Eggshell thickness, 2.4–4.0 mm. Outer surface of the eggshell is coarsely decorated. Cone layer is thin with 0.18–0.25 mm thick, about 1/20–1/4 of eggshell thickness. Three distinct zones of the columnar layer: (1) Horizontal growth lines develop in the inner zone. (2) Light and dark bands with varying thickness and lengths develop in the medial zone. (3) Secondary eggshell units are loosely arranged in the outer zone. The pore cannel is irregular. |
Measurements
No measurements are available
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Source: subc = subclass, c = class, subp = subphylum | |||||
References: Hendy et al. 2009, Carroll 1988 |
Age range: base of the Late/Upper Cenomanian to the top of the Maastrichtian or 99.60000 to 66.00000 Ma
Collections (15 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Cenomanian - Santonian | China (Guangdong) | Stalicoolithus shifengensis (204732) | |
Late/Upper Cretaceous | China (Guangdong) | Pinnatoolithus sp. (204739) Shixingoolithus erbeni (52891) | |
Late/Upper Cenomanian - Turonian | China (Zhejiang) | Coralloidoolithus shizuiwanensis (204718) Paraspheroolithus shizuiwanensis (98239 204723) Paraspheroolithus shizuiwanensis, Stalicoolithus shifengensis (86426) | |
Campanian | South Korea (Jeollanam-do) | Spheroolithus sp. (52982 52983 52984) | |
Maastrichtian | China (Guangdong) | Shixingoolithus erbeni (24752 68149 68396 68398 68400) |