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Goniophora thula
Taxonomy
Goniophora thula was named by Kriz et al. (2011). Its type specimen is JK 17 875, a valve, and it is a 3D body fossil. Its type locality is 10RB10, East of Hoonah Airport, which is in a Homerian/Gorstian carbonate siltstone/limestone in the Kennel Creek Formation of Alaska.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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2011 | Goniophora thula Kriz et al. pp. 248 - 250 fig. 5A–R |
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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.
†Goniophora thula Kriz et al. 2011
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Diagnosis
Reference | Diagnosis | |
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J. Kriz et al. 2011 | A Silurian Goniophora with strongly inequilateral, postero-ventrally elongated, lanceolate shells, with outer surface sculpture composed of numerous, irregularly spaced narrow growth bands and furrows and with dorsal (posterior) and ventral (anterior) parts separated by prominent S-shaped carina between the umbo and extended ventral extremity. Posterior slope is overhanging. |