Funeralaspis Adrain & Pérez-Peris 2023, n. gen.
Funeralaspis n. gen. Type species. Funeralaspis deathvalleyensis n. sp., from the Antelope Valley Formation (Dapingian), Inyo County, California, USA (Laurentia). Other species. Possibly “ Ceratocephala sp. indet.” of Fortey (1980, p. 102, pl. 25, figs 8, 9 [only; pl. 25, fig. 10 is ceratocephaline...
| Main Authors: | , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
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2023
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| Online Access: | https://zenodo.org/record/8282484 https://doi.org/10.5281/zenodo.8282484 |
| Summary: | Funeralaspis n. gen. Type species. Funeralaspis deathvalleyensis n. sp., from the Antelope Valley Formation (Dapingian), Inyo County, California, USA (Laurentia). Other species. Possibly “ Ceratocephala sp. indet.” of Fortey (1980, p. 102, pl. 25, figs 8, 9 [only; pl. 25, fig. 10 is ceratocephaline sp.]), Valhallfonna Formation, Olenidsletta Member (Floian), Svalbard, arctic Norway (Laurentia affinity East Svalbard Terrane). Etymology. From the Funeral Mountains and the Greek noun aspis, shield. Gender is feminine. Diagnosis. Anterior cranidial border long abaxially, with fine and dense tuberculate (or granular) sculpture; most dorsal cranidial surfaces with dense sculpture of fine and medium tubercles; eye and palpebral lobe set very posteriorly, rear of palpebral lobe nearly aligned with anterior of median occipital node; fixigenal field on posterior projections present as only a tiny strip; median occipital lobe large, elevated; pair of closely spaced, short occipital spines, not diverging posterolaterally, running, in most specimens, exactly posteriorly; doublure beneath LO very long sagittally; librigenal field very broad, with medium sized tubercles restricted to roughly the adaxial half; posterior border forming a sharp angle with base of the genal spine, nearly 90 degrees, ranging from slightly acute to slightly obtuse; librigenal lateral border typically with 11 border spines, border spines restricted to lateral border and not present on basal part of genal spine; genal spine about as long as main body of librigena and slender; hypostome relatively narrow (about 1.25 times as wide as long), with ventral sculpture of dense, relatively small tubercles; thoracic segments each with a pair of tubercles on the axial ring and a prominent tubercle at the base of each posterior pleural spine, remainder of sculpture of much finer tubercles; pygidium with two axial rings each with a pair of prominent spines, four medial border spines between the major spines, and two pairs of border spines lateral to the major ... |
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