Published November 26, 2020 | Version v1
Taxonomic treatment Open

Charlottea elegantissima Tekin 2020, n. sp.

Description

Charlottea elegantissima Tekin, n. sp. (Fig. 9 J-L)

urn:lsid:zoobank.org:act: 55CA8859-77C0-445D-81BF-D961D20F6D64

HOLOTYPE. — Sample Orbuk-32, HU.JMB.0139 (Fig. 9J).

PARATYPES. — HU.JMB.0140 (Fig. 9K), HU.JMB.0141 (Fig. 9L).

TYPE LOCALITY. — Orbuklukeli section, Mersin Mélange, NW of Mersin city, southern Turkey.

ETYMOLOGY. — From the Latin elegantissima, most elegant, due its elegant test.

OCCURRENCE. — Lower Jurassic, upper Hettangian-lower Sinemurian of the Orbuklukeli section, Mersin Mélange, NW of Mersin city, southern Turkey.

DIMENSIONS (based on three specimens, in µm). — Maximum diameter of cortical shell: 80-100 (holotype: 80, average: 90); Maximum length of spine: 80-100 (holotype: 90, average: 90).

DESCRIPTION

Test small, slightly inflated globular with three primary spines. Cortical shell with small to medium sized, trigonal to tetragonal pore frames with subcircular nodes at pore frame vertices. Primary spines thin, needle-like throughout their length, subcircular in transversal section, tapering gradually to the distal end. Length of primary spines approximately equal to the diameter of the cortical shell.

REMARKS

This species differs from Charlottea johnsoni (Carter et al. 1998: 38-39, pl. 3, figs 5, 10, 13, 14) by having a smaller test with needle-like primary spines throughout their length.

Notes

Published as part of Tekin, Kagan, Krystyn, Leopold, Okuyucu, Cengiz, Bedi, Yavuz & Sayit, Kaan, 2020, Late Triassic to Early Jurassic radiolarian, conodont and ammonite assemblages from the Tavuscayiri block, Mersin Mélange, southern Turkey: Time constraints for the T / J boundary and sedimentary evolution of the southern margin of the northern Neotethys, pp. 493-537 in Geodiversitas 42 (27) on pages 514-516, DOI: 10.5252/geodiversitas2020v42a27, http://zenodo.org/record/4447758

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Linked records

Additional details

Biodiversity

Family
Eptingiidae
Genus
Charlottea
Kingdom
Chromista
Order
Entactinaria
Phylum
Radiozoa
Scientific name authorship
Tekin
Species
elegantissima
Taxonomic status
sp. nov.
Taxon rank
species
Type status
holotype , paratype
Taxonomic concept label
Charlottea elegantissima Tekin, 2020

References

  • LONGRIDGE L. M., CARTER E. S., SMITH P. L. & TIPPER H. W. 2007. - Early Hettangian ammonites and radiolarians from the Queen Charlotte Islands, British Columbia and their bearing on the definition of the Triassic-Jurassic boundary. Palaeogeography, Palaeoclimatology, Palaeoecology 244: 142 - 169. https: // doi. org / 10.1016 / j. palaeo. 2006.06.027
  • CARTER E. S., WHALEN P. A. & GUEX J. 1998. - Biochronology and paleontology of Lower Jurassic (Hettangian and Sinemurian) radiolarians, Queen Charlotte Islands, British Columbia. Geological Survey of Canada Bulletin 496: 1 - 162. https: // doi. org / 10.4095 / 209778