New Middle Triassic Bell-Shaped Nassellarian Radiolaria From Alpine And Carpathian Areas Author Dumitrică, Paulian text Acta Palaeontologica Romaniae 2024 2024-02-11 20 1 51 75 http://dx.doi.org/10.35463/j.apr.2024.01.05 journal article 10.35463/j.apr.2024.01.05 1842-371x 12582776 Humerocyrtis jekeli n. sp. Figs. 6d , 8c Diagnosis . Shell bell-shaped consisting of a small, pear-shaped cephalic cavity and practically poreles cephalis and a thorax with concave distal portion. Apical horn, long, three-bladed and pointed. Ventral spine small, three-bladed and pointed. Proximal part of thorax very short, wide-conical with rare small circular or oval pores. Shoulder relatively well remarked and rounded. Distal part of thorax subcylindrical with concave outline, its distal end simple or bearing a short and narrower thin-walled additional shell. Pores of thorax circular or oval, of variable sizes and arranged irregularly or in oblique rows. Studied material . Two specimens in sample Rc4. Holotype . Fig. 8c , sample Rc2, coll. MGL .110286. Paratype . Fig. 6d , sample Rc4, coll. MGL .110287. Dimensions . Maximum length of shell with apical horn 126-144 µm, without horn 87-96 µm, of cephalis 30-35 µm, of thorax 52-61 µm, diameter of cephalis 37-38 µm, of shoulder 57-58 µm, of distal end 95-106 µm. Etymology . The species is dedicated to the geologist E. Jekelius who, at the beginning of the XXth century, studied the geology and Triassic fauna from the Braşov and Cristian areas. Remarks . To this species I assigned provisionally two rather different specimens. The paratype differs from the holotype by having a longer and slightly pear-shaped cephalis, very irregularly arranged pores on thorax and distal border of thorax practically without the thin additional shell. There is just a beginning of such a shell in the left side of the distal border. Stratigraphic range . Buchenstein Formation, Recoaro, lower Ladinian.