Diplodontidae

Diplodonta striatula, from Femorale.


Belongs within: Bivalvia.

'Diplodontidae' is a synonym of Ungulinidae, a family of bivalves found from the Upper Cretaceous to the present day.

Characters (from Cox et al. 1969): Outline subtrigonal to oblong, rounded or obliquely ovate, beaks generally low, dorsal angulations weak or absent, ligament and resilium marginal; surface smooth, punctate, or with fine concentric sculpture; hinge with two cardinals, medial one bifid, and incomplete or evanescent laterals; muscle scars irregular, anterior scar elongate and not detached from pallial line, posterior scar large.

<==Diplodontidae
    |--Joannisiella F27a
    |    |--J. moretonensis (Deshayes 1855) [=Cyrenella moretonensis] H09
    |    |--J. novozelandica [=Lucina novozelandica, L. novaezelandiae (l. c.), Diplodonta striata] F27a
    |    `--J. sphaericula (Deshayes 1855) [=Cyrenella sphaericula] H09
    |--Zemysia Finlay 1927 F27a
    |    |--Z. (Zemysia) F27a
    |    |    |--*Z. (Z.) zelandica [=Lucina zelandica, Diplodonta zelandica] F27a
    |    |    `--Z. (Z.) infrequens (Marwick 1926) [=Diplodonta infrequens] F27a
    |    `--Z. (Zemysina Finlay 1927) F27a
    |         |--Z. (*Z.) globus Finlay 1927 F27a
    |         |--Z. (Z.) globularis (Lamarck 1818) [=Diplodonta globularis] F27a
    |         |--Z. (Z.) globulosa [=Diplodonta globulosa] F27a
    |         `--Z. (Z.) striatula Finlay 1927 F27a
    `--Diplodonta HS01
         |--D. adamsi (Angas 1867) [=Mysia adamsi] H09
         |--D. ampla (Hutton 1885) F27a
         |--D. balcombensis Pritchard 1906 [=D. subquadrata Tate 1887 nec Carpenter 1855 nec Gabb 1873] F27b
         |--D. conspicua Smith 1885 H09
         |--D. corpulenta Smith 1885 H09
         |--D. ethima Melvill & Standen 1899 H09
         |--D. gabbi [=D. subquadrata Gabb 1873 non Carpenter 1855] F27b
         |--D. globosa Adams 1856 H09
         |--D. scalpta Smith 1885 H09
         |--D. striatula HS01
         |--D. subcrassa Smith 1884 H09
         |--D. subglobosa Smith 1885 H09
         |--D. sublateralis Smith 1885 H09
         |--D. subquadrata Carpenter 1855 F27b
         |--D. suborbicularis (Tate 1887) [=Sacchia suborbicularis] F27b
         `--D. tasmanica F27a

Nomen nudum: Diplodonta newtoni Cossmann 1907 F27b

*Type species of generic name indicated

REFERENCES

Cox, L. R., N. D. Newell et al. 1969. Treatise on Invertebrate Paleontology pt N. Bivalvia vol. 2. The Geological Society of America, Inc. and The University of Kansas.

[F27a] Finlay, H. J. 1927a. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320-485.

[F27b] Finlay, H. J. 1927b. New specific names for austral Mollusca. Transactions and Proceedings of the New Zealand Institute 57: 488-533.

[HS01] Hayward, B. W., A. B. Stephenson, M. S. Morley, W. M. Blom, H. R. Grenfell, F. J. Brook, J. L. Riley, F. Thompson & J. J. Hayward. 2001. Marine biota of Parengarenga Harbour, Northland, New Zealand. Records of the Auckland Museum 37: 45-80.

[H09] Hedley, C. 1909. The Marine Fauna of Queensland: Address by the President of Section D. Australasian Association for the Advancement of Science: Brisbane.

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