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Agerina acutilimbata

Trilobita - Corynexochida - Leiostegiidae

Agerina acutilimbata was named by Ghobadi Pour et al. (2011). Its type specimen is NMW 2005.32G.135 (articulated exoskeleton, external mould) and is a 3D body fossil. Its type locality is 203a. Karugach Section. East side of Ayaguz River, about 7 km north of Akchii, which is in a Katian carbonate sandstone/siltstone in the Karagach Formation of Kazakhstan.

Sister species lacking formal opinion data

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Synonymy list
YearName and author
2011Agerina acutilimbata Ghobadi Pour et al. pp. 165 - 166 fig. 5a–c

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
classTrilobitaWalch 1771
orderCorynexochidaKobayashi 1935
familyLeiostegiidaeBradley 1925
genusAgerinaTjernvik 1956

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

M. Ghobadi Pour et al. 2011Cephalon semioval, about 80% as long as wide; elongate, parallel axial furrows with evenly rounded anterior margin confined to the anterior border furrow; three pairs of very weakly defined glabellar furrows; occipital ring transverse with a small median tubercle; convex cephalic border of equal width with short median spine; medially (exsag.) situated palpebral lobes about 25% of cephalic length; eight thoracic segments, and pygidium with conical axis about 35% of maximum pygidial width, four axial rings and very short terminal piece; pleural fields with three to four pairs of ribs; border narrow, fading posteriorly abaxially.