N11

Giraffospyris angulata (Haeckel)

Eucoronis angulata Haeckel, 1887, p. 978, pl. 82, fig. 3

Giraffospyris angulata (Haeckel), Goll, 1969, p. 331, pl. 59, figs. 4, 6, 7, 9

DESCRIPTION AND DIMENSIONS

"Sagittal ring 'D shaped'; 60-93 microns high; 51 to 93 microns thick. Apical, axial, and frontal spines short; vertical spine short, mounted close to base of sagittal ring; no sagittal-ring tubercles; variable number of sagittal-ring spines. Some specimens have no lattice shell or connector bars; primary and secondary-lateral spines are present. In a few skeletons, lattice shell consists solely of basal ring; primary-lateral bars or primary-lateral spines; three to six pairs of sagittal-ring spines between apical and vertical spines.

"Basal ring oval, indented sagittally; 67 to 133 microns wide; 32 to 67 microns thick; joined directly to front and back of sagittal ring; irregularly spinous; encloses two or four basal pores. In addition to the basal ring, most specimens have lattice shell 120-270 microns wide, strongly constricted sagittally, and does not extend below basal ring. The lattice shell consists of a sparse trellis of spinous lattice bars. Once lattice bar foined to each side of basal ring; one to five lattice bars joined to sagittal ring between apical and vertical spines. Lattice pores large and polygonal; no vertical, sternal, or frontal pores...

"Representatives of Giraffospyris angulata differ from those of G. annulispina, n. sp., and G. circumflexa, n. sp., in having no sagittal-ring tubercles and from those of G. laterispina, n. sp., in having lattice spines. Skeletons of the type-species of Giraffospyris, G. didiceros, have two lattice spines and no axial spine." (from Goll, 1969).

REMARKS

1. For a more complete synonymy see Goll, 1969.

Plate 19, figures 2a-d, 3a,b

N12

RECENT DISTRIBUTION

1. Goll, 1969; "Representatives of Giraffospyris angulata are in all the samples between AMPH 102P [3 degrees 52 minutes S, 155 degrees 43 minutes W], 482-484 cm. (upper Miocene) and DWBG 147B [1 degrees 27 minutes N, 116 degrees 13 minutes W] 4-7 cm. (Quaternary).