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Multifissoolithus shimonosekiensis
Taxonomy
Multifissoolithus shimonosekiensis was named by Imai et al. (2021). It is considered to be a form taxon. Its type specimen is SAM-Z-2019001 and FPDM-V-9770, an egg, and it is a 3D body fossil. Its type locality is Ayaragi River, Shimonoseki, which is in an Aptian/Albian fluvial sandstone in the Sujigahama Formation of Japan.
Synonymy list
| Year | Name and author |
|---|---|
| 2021 | Multifissoolithus shimonosekiensis Imai et al. p. 1763 fig. 1A–H |
| 2022 | Multifissoolithus shimonosekiensis Zhang p. 60 |
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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.
†Multifissoolithus shimonosekiensis Imai et al. 2021
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. Imai et al. 2021 | Theoospeciesexhibitsacombinationofcharactersthat differs from the other Multifissoolithus oospecies. These characters include eggshell thickness ranging from 3.4 mm to 4.7 mm, exten- sive development of the eggshell inner cavities, absence of a palisade microstructure, and the width of the columnar eggshell units ranging from 0.2 mm to 0.6 mm. Differential diagnosis is included in the Discussion below. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988 | |||||
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aptian - Albian | Japan (Yamaguchi) | Multifissoolithus shimonosekiensis (type locality: 229088) |