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Liobolina (Guilinaspis)
Taxonomy
Guilinaspis was named by Yuan and Xiang (1998).
It was reranked as Liobolina (Guilinaspis) by Mottequin et al. (2019).
It was assigned to Cornuproetinae by Yuan and Xiang (1998); and to Liobolina by Mottequin et al. (2019).
It was reranked as Liobolina (Guilinaspis) by Mottequin et al. (2019).
It was assigned to Cornuproetinae by Yuan and Xiang (1998); and to Liobolina by Mottequin et al. (2019).
Synonymy list
| Year | Name and author |
|---|---|
| 1998 | Guilinaspis Yuan and Xiang pp. 63 - 64 |
| 2019 | Liobolina (Guilinaspis) Mottequin et al. |
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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.
Subg. †Liobolina (Guilinaspis) Yuan and Xiang 1998
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†Guilinaspis crestaverdensis Feist 1992
†Guilinaspis intermedia Yuan and Xiang 1998
†Guilinaspis prenes Osmólska 1973
†Guilinaspis subcylindrica Yuan and Xiang 1998
†Guilinaspis subcylindrica brevis Yuan and Xiang 1998
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Yuan and L.-W. Xiang 1998 | new genus of Cornuproetinae Rud. and E. Richter, 1956 with the following characteristic combination of features: Cranidium moderately vaulted, subquadrate in outline ; glabella plump, subcylindrical to cylindrical in outline, very weakly constricted between r -r , broadly rounded anteriorly, with 3 or 4 pairs of distinct glabellar furrows; occipital furrow deep, with short lateral branches; occipital ring prominent, not narrowing and broadening laterally, with inconspicuous lateral occipital lobes; preglabellar field absent; anterior border furrow deep and broad; anterior border narrow, cushion-like or upturned; palpebral lobe rather small to medium in size; anterior branches of facial sutures long, gently divergent or parallel forward, posterior branches with relatively long straight section c -~ ; r and E. close to the dorsal furrows ; fixed cheek very narrow (tr.); free cheek broad, with longitudinal ridge on cheek area; eye kidney-shaped, eye platform present in front of and behind eye; genal spine very short or absent; pygidium semicircular to semielliptical in outline; axi s long and prominent, with 9-10 well defined axial rings and a short postaxial ridge; pleural areas rather flat adaxially, somewhat concave abaxially, with 7-8 pairs of pleural ribs, of which anterior and posterior bands are equally developed adaxially, and anterior bands are somewhat longer and higher than posterior bands abaxially; pleural furrows deep, interpleural furrows distinct; pygidial border moderately broad, cushion-like, with 5-6 undulated stringlike ridges; sculpture: anastomosing wrinkles and fine closely spaced granules on the surface of the exoskeleton. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Fortey and Owens 1999, Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: Hastarian or 358.86000 to 353.70000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hastarian | France | Liobolina crestaverdensis (38642) | |
| Hastarian | Austria | Liobolina crestaverdensis (38610 42409) | |
| Hastarian | Poland | Phillibole prenes (218771) | |
| Hastarian | China (Guangxi) | Guilinaspis brevis (222342) Guilinaspis intermedius (222331) Guilinaspis subcylindrica (222339) Guilinaspis subcylindrica, Guilinaspis brevis (222341) |