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Cairanoolithus dughii
Taxonomy
Cairanoolithus dughii was named by Vianey-Liaud et al. (1994). It is considered to be a form taxon. Its type specimen is LCA1-A (lectotype), an egg, and it is a 3D body fossil. Its type locality is La Cairanne (LCA), which is in a Campanian channel marl in France. It is the type species of Cairanoolithus.
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Cairanoolithus dughii Vianey-Liaud and Crochet p. 240 |
| 1994 | Cairanoolithus dughii Vianey-Liaud et al. p. 171 |
| 1995 | Cairanoolithus dughii Khosla and Sahni p. 93 |
| 2001 | Cairanoolithus dughii Garcia and Vianey-Liaud |
| 2003 | Cairanoolithus dughii Vianey-Liaud et al. p. 584 fig. 5 |
| 2005 | Cairanoolithus dughii Bravo et al. p. 55 |
| 2006 | Cairanoolithus dughii Garcia et al. p. 100 fig. 3 |
| 2012 | Cairanoolithus dughii Díez Díaz et al. p. 627 |
| 2013 | Cairanoolithus dughii Sellés et al. p. 16 |
| 2016 | Cairanoolithus dughii Sellés and Galobart p. 585–586 |
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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.
†Cairanoolithus dughii Vianey-Liaud et al. 1994
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. G. Sellés and À. Galobart 2016 | Cairanoolithus egg diagnosed by the following combination of characters: outer surface mainly smooth or undulating; shell thickness ranging from 1.57 to 2.41 mm; partially fused slender columnar-shaped shell units (H/W ratio of 2.5:1); angusticanaliculate pore canals (25mm wide) with small rounded pore apertures (40 – 75 mm in diameter); large packed spherulites (80 – 160 mm in diameter, average of 120 mm). |