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Isotelus bradleyi

Trilobita - Asaphida - Asaphidae

Isotelus bradleyi was named by Amati (2014) [= ? Isoteloides kimmswickensis, Bradley 1930 pl. 27, figs. 3, 4.]. Its type specimen is OU 11796, a cephalon/head (small, mostly exfoliated cranidium missing one posterior fixigena and palpebral lobe;), and it is a 3D body fossil. Its type locality is 99-13. U.S. Highway 99 Section, which is in a Turinian carbonate wackestone/floatstone in the Bromide Formation of Oklahoma.

Sister species lacking formal opinion data

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Synonymy list
YearName and author
2014Isotelus bradleyi Amati pp. 14 - 15 figs. Pl. 6, Pl. 7, Figs. 1-3, Pl. 8, Figs. 1-3

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
classTrilobitaWalch 1771
subclassLibristomaFortey 1990
orderAsaphidaSalter 1864
superfamilyAsaphoideaSalter 1864
familyAsaphidaeBurmeister 1843
subfamilyIsotelinaeAngelin 1854
genusIsotelusDekay 1824

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.

L. Amati 2014A species of Isotelus with anterior branches of facial sutures directed inward in front of palpebral lobes then curving outward so that lateral margins of cranidium in front of palpebral lobes strongly sinuous. Anterior branches of facial sutures curve abruptly forward just before intersecting making anterior margin of cranidium sharply pointed. Ornament of coarse pits. Pygidium subtriangular but short (sag.) for genus and without border furrow.