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Elongatoolithus excellens
Taxonomy
Elongatoolithus excellens was named by Mikhailov (1994). It is considered to be a form taxon. Its type specimen is PIN 522-402, an egg, and it is a 3D body fossil. Its type locality is Tsagan Hushu [MPE/SMGE] (PIN coll. 552), which is in a Maastrichtian terrestrial siliciclastic in the Nemegt Formation of Mongolia.
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Elongatoolithus excellens Mikhailov p. 116 |
| 2000 | Elongatoolithus excellens Mikhailov p. 569 |
| 2004 | Elongatoolithus excellens Watabe p. 19 |
| 2016 | Elongatoolithus excellens Tanaka et al. p. 354 |
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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.
†Elongatoolithus excellens Mikhailov 1994
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| K. E. Mikhailov 1994 | Smallest known eggs of Elongatoolithus: (90–110) x 40 mm. Rippled pattern ("norm") resembling that of E. sigillarius predominating in equatorial part of egg, but striated pattern showing in places. Eggshell thin: predominant thickness (in equatorial region of egg) 0.4–0.7 mm; total range 0.3–0.9 mm (sculpture slightly manifested in relief). |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Marsh 1875 | |||||
Age range: Maastrichtian or 72.10000 to 66.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maastrichtian | Mongolia (Omnogov) | Elongatoolithidae indet. (type locality: 165580) |