Bivalvia - Pholadomyida - Megadesmidae

Alternative combination: Maeonia myiformis

Synonyms: Maeonia axinia Dana 1849, Notomya clavata M'Coy 1847, Notomya ovalis M'Coy 1847, Notomya securiformis M'Coy 1847

Full reference: J. D. Dana. 1847. Descriptions of fossil shells of the collections of the exploring expedition under the command of Charles Wilkes, USN, obtained in Australia, from the lower layers of the coal formation in Illawarra, and from a deposit probably of nearly the same age at Harper's Hill, Valley of the Hunter. American Journal of Science and Arts, Second Series 4:151-160

Belongs to Pyramus according to J. B. Waterhouse 1988

See also Dana 1847, Dana 1849, M'Coy 1847, M'Coy 1847, Runnegar 1967 and Waterhouse 1969

Sister taxa: Pyramus aenigmaeformis, Pyramus concentricus, Pyramus igori, Pyramus laevis, Pyramus myriformis, Pyramus nelliae, Pyramus permianus, Pyramus planus, Pyramus primigenius, Pyramus silicius, Pyramus simmetricus

Type specimens:

• Pyramus myiformis: USNM 3587. Its type locality is Wollongong Point, Illawarra (USNM coll), which is in a Wordian coastal siliciclastic in the Gerringong Formation of Australia.
• Maeonia axinia: USNM 188168. Its type locality is Illawarra District (USNM coll), which is in a Wordian coastal siliciclastic in the Gerringong Formation of Australia.
• Notomya clavata: Its type locality is Wollongong (W.B. Clarke coll), which is in a Wordian marine sandstone in the Gerringong Formation of Australia.
• Notomya ovalis: Its type locality is Loder's Creek (W.B. Clarke coll), which is in a Wordian marine siliciclastic in the Muree Formation of Australia.
• Notomya securiformis: Its type locality is Wollongong (W.B. Clarke coll), which is in a Wordian marine sandstone in the Gerringong Formation of Australia.

Ecology: facultatively mobile infaunal suspension feeder

Distribution:

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Specimen images are retrieved through the ePANDDA API.