Zeliszkella

Zeliszkella is a genus of trilobite in the order Phacopida, with species of average size. Species are known from the Middle and Upper Ordovician and have been found in the Czech Republic, France, Morocco, Portugal and Spain.

Z. torrubiae

Zeliszkella
Temporal range: Darriwilian to Katian
Zeliszkella torrubiae, 6½cm long
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: †Trilobita
Order: †Phacopida
Family: †Dalmanitidae
Genus: †Zeliszkella
Delo, 1935
Species
  • Z. deshayesi (Barrande, 1846) (type species) = Phacops deshayesi
  • Z. torrubiae (Verneuil & Barrande, 1855) = Dalmanites torrubiae, Z. lapeyrei
  • Z. hawlei (Barrande, 1846) ssp.
    Z. h. hawlei
    Z. h. pandora Snajdr, 1987
  • Z. renaudae Henry, 1980
  • Z. toledana Hammann, 1971
  • Z. velai Corbacho, 2011

The cephalon has a rather narrow frontal area, and the anterior sections of the facial sutures run close to frontal lobe anteriorly. The large mosaic (schizochroal) eyes reach far backward. The main body (or thorax) is composed of eleven segments. The side lobes (pleurae) of the thorax curve stronger backward closer to the tail shield (or pygidium), their pointed tips longer than those of anterior pleurae. The pygidium is elongate subtriangular with the axis narrowly triangular reaching the back of the pygidium and consisting of about 10 rings. The pleural fields have 3 or 4 ribs.[1]

Taxonomy

Reassigned species

Some species formerly included in Zeliszkella have now been reassigned to other genera.

  • Z. neltneri = Phacopidina neltneri
  • Z. zguidensis = Morgatia zguidensis

References
  1. Corbacho, Joan (2011). "Trilobites from the Upper Ordovician of Bou Nemrou - El Kaid Errami (Morocco) [Trilobites del Ordovícico Superior de Bou Nemrou - El Kaid Errami (Marruecos)]" (PDF). Batelleria. 16: 16–31.


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