Radioporacanthodes scheii ...
RADIOPORACANTHODES SCHEII (SPJELDNAES, 1967) (FIG. 2 CC–EE; TABLE 1; SUPPL. 1, FIGS. 2, 3, 5, 9 –13) Ischnacanthus? Scheii Spjeldnaes 1967, 807, figs. 1–3, pl. 1. Radioporacanthodes scheii; Burrow 2013, 947, figs. 2-6. Diagnosis —see Burrow (2013). Type material — The holotype is fin spine CMN55213,...
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| Format: | Text |
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Zenodo
2023
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| Online Access: | https://dx.doi.org/10.5281/zenodo.11488268 https://zenodo.org/doi/10.5281/zenodo.11488268 |
| Summary: | RADIOPORACANTHODES SCHEII (SPJELDNAES, 1967) (FIG. 2 CC–EE; TABLE 1; SUPPL. 1, FIGS. 2, 3, 5, 9 –13) Ischnacanthus? Scheii Spjeldnaes 1967, 807, figs. 1–3, pl. 1. Radioporacanthodes scheii; Burrow 2013, 947, figs. 2-6. Diagnosis —see Burrow (2013). Type material — The holotype is fin spine CMN55213, in a block with other fin spines, jaw fragments and scales considered to be conspecific; from the northwest side of Irene Bay, Ellesmere Island, arctic Canada, Devon Island Formation (Přidolí? or early Lochkovian). Referred specimens —Rare scales recognized at levels 395’ (120.4 m), 424.9’ (129.5 m), 430.5’ (131.2 m), 456.5′–471′ (139.1-143.6 m) in the BC II section, including UCR 10750-1, -5 (level 456.5’= 139.1 m): Roberts Mountains Formation. Description —These scales are characterised by regularly spaced short sharp ridges along the anterior edge of the crown, without a median sulcus. Pore openings are relatively small, with a maximum of six subparallel rows running back along the posterior half of the crown ... : Published as part of Burrow, Carole Jan, Murphy, Michael & Turner, Susan, 2023, Late Silurian to earliest Devonian vertebrate biostratigraphy of the Birch Creek II section, Roberts Mountains, Nevada, U. S. A., pp. 1-32 in PaleoBios 40 (4) on page 8, DOI: 10.5070/P940454153, http://zenodo.org/record/10913559 ... |
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