Fig. 2 in Convergent evolution of two Silurian graptolites ...
Fig. 2. Silurian graptolites Cochlograptus veles (Richter, 1871) (A, B) and Testograptus testis (Barrande, 1850) (C–F) in direct comparison. Chemically cleared and infrared views of specimens from collection SJF−02, talus nodule 2A, Cape Sir John Franklin, Devon Island. A. Variously oriented views o...
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| Format: | Still Image |
| Language: | unknown |
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Zenodo
2008
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| Online Access: | https://dx.doi.org/10.5281/zenodo.13275183 https://zenodo.org/doi/10.5281/zenodo.13275183 |
| Summary: | Fig. 2. Silurian graptolites Cochlograptus veles (Richter, 1871) (A, B) and Testograptus testis (Barrande, 1850) (C–F) in direct comparison. Chemically cleared and infrared views of specimens from collection SJF−02, talus nodule 2A, Cape Sir John Franklin, Devon Island. A. Variously oriented views of specimens with two developed thecae and common canal of theca 3, GSC34908; A1, profile view; A2, enlargement showing normal porus; A3, dorso−lateral view; A4, ventro−lateral view. B. Ventral and lateral views of specimen, GSC34909; B1, ventral view showing tip of sicula (clear region) and well marked thickened interthecal septum (arrow); B2, profile showing well−developed nema. (C–F) Testograptus testis (Barrande, 1850). Chemically cleared and infrared images of specimens from collection RC01−2, 2.5 m, Rookery Creek, Cornwallis Island. C. Largest specimen profile showing deflexed nema distal of sicula tip, and hollow, keel−like protuberance distal of sicula tip (arrow), GSC34910. D. Profile of specimen with only ... : Published as part of Lenz, Alfred C. & Melchin, Michael J., 2008, Convergent evolution of two Silurian graptolites, pp. 449-460 in Acta Palaeontologica Polonica 53 (3) on page 453, DOI: 10.4202/app.2008.0307, http://zenodo.org/record/13275176 ... |
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