Testograptus Příbyl, 1967
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publication ID |
https://doi.org/ 10.4202/app.2008.0307 |
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persistent identifier |
https://treatment.plazi.org/id/BA11F872-8D6E-FF99-D91E-D2020B55FEBE |
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treatment provided by |
Felipe |
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scientific name |
Testograptus Příbyl, 1967 |
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Genus Testograptus Příbyl, 1967
Type species: Graptolithus testis ( Barrande, 1850) , Upper Wenlock , Barrandian region, Czech Republic .
Emended diagnosis.—Rhabdosome planispirally and ventrally coiled; proximal end much more strongly curved than distal; total curvature ranging 270–450 °. Rhabdosomal development occasionally by means of pseudovirgula. Thecae biform, hooked, with long, paired, laterally directed spines. Proximal−most thecae with strongly hooked metatheca, distal thecae with lesser hook. Thecal overlap about 50–75%. Sicula weakly and ventrally curved. Distal of sicular apex, rhabdosome abruptly ventrally flexed through 30 ° to greater than 90 °. Point of flexure often developed into sharp, keel−like prominence, which is apparently hollow.
Species included.— Testograptus testis ( Barrande, 1850) and Testograptus cubitus Lenz and Kozłowska, 2006.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.