Lovenia elongata, copyright Ria Tan.

Belongs within: Micrasterina.

The Loveniidae are a group of heart urchins known from the Eocene to the present, most of which are distinguished from other urchins by the presence of an internal fasciole around the apical system. The Indo-Pacific genus Homolampas lacks an internal fasciole but resembles other loveniids in having having noncrenulate primary tubercles sunk in camellae (Fischer 1966).

Characters (from Fischer 1966): Internal fasciole usually present, surrounding apical system and parts of anterior ambulacrum (absent in Homolampas). Subanal fasciole generally present, peripetalous fasciole slso present in Breynia and Homolampas; apical system ethmolytic, with three or four gonopores; paired ambulacra petaloid, with anterior pair commonly fused into transverse crescent; anterior ambulacrum apetaloid. Primary spines sometimes recessed in camellae. Plastron ultramphisternous.

    |  i. s.: Chuniola Gagel 1903F66
    |           `--*C. carolinae Gagel 1903F66
    |         Homolampas Agassiz 1874 [=Lissonotus Agassiz 1869 non Dalman in Schoenherr 1817]F66
    |           `--*H. fragilis (Agassiz 1869) [=*Lissonotus fragilis]F66
    |         Verbeekia Fritsch 1877 [=Verbeckia Pomel 1883]F66
    |           `--*V. dubia Fritsch 1877 [=*Verbeckia dubia]F66
    |--+--Echinocardium Gray 1825SS05, B01 [=Amphidetus Agassiz 1836F66]
    |  |    |--*E. cordatum (Pennant 1777) [=Echinus cordatus, *Amphidetus cordatus]F66
    |  |    |--E. australeP61
    |  |    |--E. flavescens (Müller 1776) (see below for synonymy)D05
    |  |    |--E. laevigaster Agassiz 1869SS05
    |  |    |--E. mediterraneumPP64
    |  |    |--E. mortenseniPP64
    |  |    `--E. pennatifidumBK77
    |  `--Lovenia Desor 1847SS05, B01
    |       |  i. s.: L. carinata (Cotteau 1889)SG93
    |       |         L. cordiformis Agassiz 1872SS05
    |       |         L. forbesi [incl. Hemipatagus woodsii Etheridge 1875, L. forbesi var. woodsi]F71
    |       |         L. gregalis Alcock 1893MG-H11
    |       |         L. gregoryi (Clark 1915)SG93
    |       |         L. lorioli (Lambert 1902)SG93
    |       |         L. subcarinataSS05
    |       |         L. suessi Bittner 1880SG93
    |       |--*L. (Lovenia) elongata (Gray 1845) [=Spatangus elongatus]F66
    |       `--L. (Vasconaster Lambert 1915 [=Sarsella Pomel 1883 non Haeckel 1879]F66
    |            `--L. (*V.) sulcatus (Haime 1853) [=Breynia sulcata, *Sarsella sulcata]F66
         |--B. australasiae (Leach 1815)SM15
         |--B. desorii Gray 1851SM15
         `--B. neanika McNamara 1982SM15

Echinocardium flavescens (Müller 1776) [=Spatagus flavescens; incl. Amphidetus ovatus Düben in Koben 1846, Echinocardium ovatum]D05

*Type species of generic name indicated


[BK77] Barel, C. D. N., & P. G. N. Kramers. 1977. A survey of the echinoderm associates of the north-east Atlantic area. Zoologische Verhandelingen 156: 1–159.

[B01] Boczarowski, A. 2001. Isolated sclerites of Devonian non-pelmatozoan echinoderms. Palaeontologia Polonica 59: 1–219.

[D05] Döderlein, L. 1905. Arktische Seeigel. In: Römer, F., & F. Schaudinn (eds) Fauna Arctica. Eine Zusammenstellun der arktischen Tierformen, mit besonder Berücksichtigung des Spitzbergen-Gebietes auf Grund der Ergebnisse der Deutschen Expedition in das Nördliche Eismeer im Jahre 1898 vol. 4 pp. 373–394. Gustav Fischer: Jena.

[F66] Fischer, A. G. 1966. Spatangoids. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt U. Echinodermata 3 vol. 2 pp. U543–U628. The Geological Society of America, Inc., and The University of Kansas Press.

[F71] Fletcher, H. O. 1971. Catalogue of type specimens of fossils in the Australian Museum, Sydney. Australian Museum Memoir 13: 1–167.

[MG-H11] McEnnulty, F. R., K. L. Gowlett-Holmes, A. Williams, F. Althaus, J. Fromont, G. C. B. Poore, T. D. O’Hara, L. Marsh, P. Kott, S. Slack-Smith, P. Alderslade & M. V. Kitahara. 2011. The deepwater megabenthic invertebrates on the western continental margin of Australia (100–1100 m depths): composition, distribution and novelty. Records of the Western Australian Museum Supplement 80: 1–191.

[PP64] Peres, J. M., & J. Picard. 1964. Nouveau manuel de bionomie benthique de la mer Mediterranee. Recueil des Travaux de la Station Marine d’Endoume, Bulletin 31 (27): 5–137.

[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.

[SM15] Sampey, A., & L. M. Marsh. 2015. Kimberley marine biota. Historical data: echinoderms. Records of the Western Australian Museum Supplement 84: 207–246.

[SG93] Simms, M. J., A. S. Gale, P. Gilliland, E. P. F. Rose & G. D. Sevastopulo. 1993. Echinodermata. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 491–528. Chapman & Hall: London.

[SS05] Stockley, B., A. B. Smith, T. Littlewood, H. A. Lessios & J. A. Mackenzie-Dodds. 2005. Phylogenetic relationships of spatangoid sea urchins (Echinoidea): taxon sampling density and congruence between morphological and molecular estimates. Zoologica Scripta 34: 447–468.

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