Condylopyge, HAWLE ET CORDA, 1847

Fatka, Oldřich, Knížek, František & Kozák, Vladislav, 2015, Condylopyge Hawle Et Corda, 1847 In The Příbram-Jince Basin (Barrandian Area, The Czech Republic, Agnostida), Acta Musei Nationalis Pragae Series B 71 (1 - 2), pp. 103-109 : 103-104

Condylopyge in the Barrandian area

Condylopyge was for a long time known only from the Skryje-Týřovice Basin (summary Šnajdr 1958, Fatka 2005). Disarticulated exoskeletal remains of this large agnostid are usually quite abundant in fossil associations characterizing the middle and higher stratigraphical levels of the Buchava Formation ( Šnajdr 1958). It commonly occurs together with several other agnostids such as Phalagnostus nudus , Pleuroctenium granulatum granulatum , Skryjagnostus pompeckji , Peronopsis div. sp., Phalacroma bibullatum , Diplorrhina triplicata and is usually associated with remains of paradoxidid, conocoryphid and solenopleurid trilobites, cinctan echinoderms and hyoliths (see Prantl 1947, Fatka 2005).

In the Příbram-Jince Basin, the presence of Condylopyge was published for the first time by Fatka and Kordule (1992, p. 50). Later, Valíček and Szabad (2002, pl. 1, fig. 1) figured the internal mould of a quite small isolated cephalon collected from the oldest faunal association of the Jince Formation at the foot of the slope known as Vinice near Jince ( Text-fig. 1 ). These authors classified this specimen as Condylopyge rex but without any discussion.

Fatka et al. (2004, tab. 3) revised the stratigraphical ranges of taxa established in the Jince Formation, including agnostids. The occurrence of Condylopyge cf. rex was reported from the lower stratigraphical levels of the Eccaparadoxides pusillus Zone as well as from the oldest layers of the Onymagnostus hybridus Zone.

Figures

Text-fig. 1. The Czech Republic with the position of the Příbram-Jince Basin (A), distribution of Cambrian rocks of the Jince Formation in the Příbram-Jince Basin (B), geographic position of discussed localities (C), stratigraphic ranges of Condylopyge in the Jince Formation of the Příbram-Jince Basin (D). 1. foot of the slope known as Vinice near Jince (locality 15 in Fatka and Kordule 1992); lowermost levels of the Acadolenus snajdri Zone sensu Fatka and Szabad (2014). 2. locality Potůček near Rejkovice (= locality 12 in Fatka and Kordule 1992); lower levels of the Paradoxides (Eccaparadoxides) pusillus Zone sensu Fatka and Szabad (2014). Specimens CGS CW 17 and CGS FK 63. 3. foot of the slope known as Vinice near Jince (locality 20 in Fatka and Kordule 1992); lower levels of the Onymagnostus hybridus Biozone sensu Fatka and Szabad (2014). Specimen CGS CW 18.