Family FIBULARIIDAE

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Introduction

Fibulariids are widespread throughout the Indo-Pacific region including New Zealand, and in the Atlantic Ocean. Four extant genera are known. Two genera and 14 species occur in Australian waters.

The family is distinguished from other clypeasteroid families by the following combination of character states: small, shape variable, but often more or less ovate; short or rudimentary food grooves absent or indistinct; internal skeletal supports absent or radial partitions only, petals usually indistinct, simple, open; pore pairs not conjugate.

General References

Durham, J.W. 1966. Echinozoa: Clypeasteroids. pp. U450-U491, figs 335-377 in Moore, R.C. (ed.). Treatise on Invertebrate Paleontology. Part U. Echinodermata. 3. Asterozoa-Echinozoa. Kansas : Geological Society of America and University of Kansas Press Vol. 2.

Mortensen, T. 1948. A Monograph of the Echinoidea. IV (2). Clypeastroida. Clypeastridae, Arachnoididae, Fibulariidae, Laganidae and Scutellidae. Copenhagen : C.A. Reitzel 471 pp. 258 figs 72 pls.

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