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Neogriffithides extremorientalis
Taxonomy
Neogriffithides extremorientalis was named by Flick and Shiino (2021). Its type specimen is UMUT PA33621, a cephalon/head (cranidium), and it is a 3D body fossil. Its type locality is KF212, Matashirosawa Valley, Shigejisawa Valley, Kamiyasse, Miyagi Prefecture, which is in a Wordian offshore shelf shale in the Hoso-o Formation of Japan.
Synonymy list
Year | Name and author |
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2021 | Neogriffithides extremorientalis Flick and Shiino pp. 110 - 113 figs. Text-fig. 13, Plate 5, Figs 5 –17 |
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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.
†Neogriffithides extremorientalis Flick and Shiino 2021
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Diagnosis
Reference | Diagnosis | |
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U. Flick and Y. Shiino 2021 | Glabella strongly vaulted, largely overhanging the anterior border, the glabella slightly constricted at γ and being the broadest at δ. Frontal lobe very short. L 1 of considerable size, S 1 reaching the occipital furrow but becoming very shallow posteriorly. Palpebral lobe of moderate size, projecting only little laterally. Section between ε and ζ strait and very long. Genal angle well rounded. Pygidium of semielliptical to slightly parabolic outline. Axis bearing 8 rings, the first one being considerably shorter than the others. 6 pairs of pleural ribs, becoming gradually less distinct posteriorly, the last one being reduced to a soft elevation only observable on well-preserved specimens. |
Measurements
No measurements are available
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Source: f = family, o = order, c = class | |||||
References: Whittington et al. 1997, Aberhan et al. 2004, Fortey and Owens 1999 |