Kjaerina (Villasina) cf. pyrenaica, Colmenar, 2016

Colmenar, Jorge, 2016, Ordovician rafinesquinine brachiopods from peri-Gondwana, Acta Palaeontologica Polonica 61 (2), pp. 293-326 : 309-311

publication ID

https://doi.org/ 10.4202/app.00102.2014

persistent identifier

https://treatment.plazi.org/id/DE6FAC27-FFC4-6251-FCD6-5453FCC6BCE5

treatment provided by

Felipe

scientific name

Kjaerina (Villasina) cf. pyrenaica
status

sp. nov.

Kjaerina (Villasina) cf. pyrenaica sp. nov.

Fig. 10I–K.

Material.—Internal and external moulds of 3 poorly-preserved external and internal moulds of ventral valves ( MPZ 2015/1379–1381) from microconglomeratic sandstone of the upper part of the Punta Serpeddi Formation, Katian, at Dolianova (Sardinia).

Remarks.—The multicostellate radial ornament with 4–5 ribs per 2 mm counted at 10 mm anteromedially from umbo and the rugation and shell outline resembles those of the spe-

→ Fig. 9. Dorsal valves of rafinesquinine brachiopod Kjaerina (Villasina) pedronaensis sp. nov.; Katian, Upper Ordovician; Portixeddu Formation at Punta Pedrona (A, B, D–H) and Gonnesa (I), Sardinia, Italy; Gabian Formation, Montagne Noire, France (C). A. MPZ 2015 View Materials /1363, holotype, internal mould (A 1), latex cast of dorsal interior (A 2), detail of cardinalia in anteroblique view (A 3). B . MPZ 2015 View Materials /1364, paratype, internal mould (B 1) and latex cast of dorsal interior (B 2). C . MPZ 2015 View Materials /1370, latex cast of interior of an incomplete valve. D . MPZ 2015 View Materials /1365, paratype, detail of multicostellate radial ornament dorsal exterior (D 1) and latex cast of exterior (D 2) of a specimen with conjoined valves. E . MPZ 2015 View Materials /1366, paratype, internal mould (E 1) and latex cast of dorsal interior (E 2). F . MPZ 2015 View Materials /1367, paratype, latex cast of dorsal interior (F 1) and detail of cardinalia in anteroblique view (F 2), showing the posteroventrally engrossed cardinal process lobes of the specimen. G . MPZ 2015 View Materials /1368, paratype, latex cast of exterior of a specimen with conjoined valves in dorsal (G 1) and posteroblique (G 2) views, showing the ventral interarea, chilidium, and hinge line. H . MPZ 2015 View Materials /1369, paratype, latex cast of exterior of a specimen with conjoined valves in dorsal (H 1) and posteroblique (H 2) views, showing the ventral interarea, chilidium, and hinge line. I . MPZ 2015 View Materials /1371, latex cast if interior. Scale bars 2 mm .

cies Kjaerina (Villasina) pyrenaica , but due to the absence of dorsal valves and the poor preservation of the available ventral interiors the species is left in open nomenclature.

MPZ

Museo Paleontologico de la Universidad de Zaragoza

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