Ammonia aberdoveyensis Haynes, 1973

Camacho, S, Moura, D, Connor, S, Scott, DB & Boski, T, 2015, Taxonomy, ecology and biogeographical trends of dominant benthic foraminifera species from an Atlantic-Mediterranean estuary (the Guadiana, southeast Portugal), Palaeontologia Electronica 52 (4), pp. 1-37 : 27-28

Ammonia aberdoveyensis Haynes, 1973

Figure 5.28-5.35

1973 Ammonia aberdoveyensis Haynes : p. 184, fig. 38, nos. 1-7.

1990 Ammonia beccarii (Linné) f. tepida ( Cushman, 1926) ; Walton and Sloan, pl. 1, figs. 1-4; pl. 2, fig. 2.

1995 Ammonia beccarii ( Linné, 1758) ; Yassini and Jones, p. 175, figs. 994-999.

2004 Ammonia aberdoveyensis Haynes ; Hayward, Holzmann, Grenfell, Pawlowski and Triggs, p. 253, pl. II, fig. T2; p. 256, pl. III, fig. T2; p. 258, pl. IV, fig. T2.

2007 Ammonia aberdoveyensis Haynes ; Wennrich, Meng and Schmiedl, p. 321, pl. 1, fig. 3.

2014 Ammonia aberdoveyensis Haynes ; Pawlowski and Holzmann: forambarcoding.unige.ch/specs/72-ammonia-aberdoveyensis-t2

2014 Ammonia aberdoveyensis Haynes ; this study; European Nucleotide Archive (ENA) http://www.ebi.ac.uk/ena/data/view/ LN551930-LN551935

Morphological description. Small proloculus, test medium-size (0.3 – 0.5 mm); whorls medium width on spiral side; moderate inflation, a broadly rounded periphery, six to nine chambers per whorl;

small pores and longer radial sutural furrows on the umbilical side than the other ‘Ammonias’; little to no secondary calcite, usually with no umbilical boss.

Occurrence. Together with Ammonia sp1 , this is the most ubiquitous calcareous species in the modern estuary, being absent only from the most elevated stands of the marsh; its optimum occurrence is in the lower to middle elevations of the lower and middle estuary; its peak of occurrence is observed in summer, especially in the lower elevations where it is always the dominant species; in summer, it is able to migrate farther up the marsh,

occupying higher elevation stands; is a dominant element in two of the main assemblages found for

Guadiana: in the middle elevations of upstream assemblage, where it is subdominant to M. fusca ,

and in the lower elevations of the lower estuary assemblage, where it is co-dominant with B. ordinaria in winter.

Remarks. Found on Mediterranean coasts, France and Italy ( Hayward et al., 2004).

Figures

FIGURE 5. Scanning electron and light microscope micrographs of the foraminifera specimens. Scale bar equals 100 µm. 1- Lamarckina haliotidea (Heron-Allen and Earland, 1911) ventral view; 2-3- Asterigerinata mamilla (Williamson, 1858); 2- dorsal view; 3- ventral view; 4-5- Discorbis sp.; 4- dorsal view; 5- ventral view; 6-7- Helenina anderseni (Warren, 1957); 6- dorsal view; 7- ventral view; 8- Haynesina depressula (Walker and Jacob, 1798) side view; 9- Haynesina germanica (Ehrenberg, 1840) side view; 10- Elphidium advenum (Cushman, 1922) side view; 11- Elphidium excavatum (Terquem, 1875) side view; 12-15- Elphidium wiliamsoni Haynes, 1973; 12- side view in light microscope image; 13- side view in scanning electron image; 14- profile view in scanning electron image; 15- side view of a smaller specimen in scanning electron image; 16-18- side view of different size Elphidium gerthi Van Voorthuysen, 1957; 19-21- Elphidium oceanensis (d’Orbigny, 1826); 19- side view in scanning electron image; 20- profile view in scanning electron image; 21- side view in light microscope image; 22- Elphidium poeyanum (d’Orbigny, 1826) side view; 24-27- Ammonia sp1; 24- dorsal view; 25- profile view; 26- ventral view; 27- dorsal view in light microscope image; 28-31- Ammonia sp2 (Ammonia aberdoveyensis Haynes, 1973); 28- dorsal view; 29- profile view; 30- ventral view; 31- dorsal view in light microscope image; 32-35- Ammonia sp3 (Ammonia aberdoveyensis Haynes, 1973); 32- dorsal view; 33- profile view; 34- ventral view; 35- dorsal view in light microscope image.