Confusaforma prima, Löser & Nieto & Castro & Reolid, 2019

Löser, Hannes, Nieto, Luis M., Castro, José Manuel & Reolid, Matías, 2019, A Lower Valanginian coral fauna from the South Iberian Palaeomargin (Internal Prebetic, SE Spain), Palaeontologia Electronica (a 06) 24 (1), pp. 1-57 : 30-32

Confusaforma prima sp. nov. Löser

Figure 36

zoobank.org/ 305E2A06-753B-499D-981B-6B12BB3D01B9

v 2003 Confusaforma weyeri Löser, 1987 ; Baron-Szabo and González León, p. 207, fig. 7B

v 2013 Confusaforma sp. ; Löser, Castro and Nieto, p. 29, pl. 9, figs. 10-12

v 2015 Confusaforma aff. weyeri Löser, 1987 ; Löser, p. 17, figs. 1D-F

Etymology. Prima, the first. The species is the earliest record of the genus.

Holotype. MGB 83346 with two thin sections.

Type locality. Puerto Llano section, Cabañas, Sierra de Cazorla, Jaén, Andalucía, Spain.

Type level. Sierra del Pozo Fm, Lower Valanginian.

Depository. Museo de Geología de Barcelona, Spain.

Diagnosis. Confusaforma with an average small calicular diameter of 1.09 mm and an average large calicular diameter of 1.29 mm. The septal number varies between three and five.

Material. MGB 83346; 2 thin sections.

Dimensions. See Table 32.

Description. Cerioid colony. Corallite outline irregular. Septa compact. Microstructure of septa unknown. Septa in cross section externally thick and of triangular outline. Symmetry of septa irregular. Septa very short, reduced to ridges, not connected to each other. Septal lateral face smooth, inner margin smooth. Pali, costae, synapticulae, and columella absent. Endotheca consists of numerous and regular tabulae. Wall compact, but its structure is unknown. Budding extracalicinal.

Comparison. From Confusaforma weyeri the new species distinguishes by larger calicular dimensions. Even larger dimensions show material

LÖSER ET AL.: SPANISH VALANGINIAN CORALS described by Löser, Castro and Nieto (2013) from the Upper Albian of southern Spain. C. carpathica Kolodziej, 1995 , does not belong to this genus.

Occurrence. Lower Aptian of Italy (Abruzzi, L’Aquila) Monti d’Ocre, Sotto Colle Pagliare (PU 18162). Lower Albian of Mexico (Sonora) Tuape, Cerro de la Espina. Lower Upper Albian (Inflatum Zone) of Spain (Valencia, Alicante) Sierra de Llorençá.

Figures

FIGURE 36. Confusaforma prima sp. nov. Löser, MGB 83346. 1: transversal thin section. 2: transversal thin section, detail. 3: longitudinal thin section. Scale 1 mm.