Lucinoma taylori

Lucinoma taylori
Temporal range:
Holotype from Auckland War Memorial Museum
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Lucinida
Family: Lucinidae
Genus: Lucinoma
Species:
L. taylori
Binomial name
Lucinoma taylori
Synonyms[1]
  • Myrtea (Lucinoma) taylori A. W. B. Powell, 1935

Lucinoma taylori is an extinct species of bivalve, a marine mollusc, in the family Lucinidae.[1][2] Fossils of the species date to early Miocene strata of the west coast of the Auckland Region, New Zealand.

Description

In the original description, Powell described the species as follows:

Shell of moderate size, suborbicular, sculptured with regularly disposed fine, sharp, concentric riblets, the interspaces each having four or five considerably finer and somewhat irregular concentric growth lines. The concentric riblets are a little less than one millimetre apart over the lower part of the shell. There is no radial sculpture, and the typical lucinoid anterior and posterior radial sulci are only just visible, mainly owing to a very slight reduction in strength of the concentric sculpture above the posterior sulcus in particular. There is a moderate-sized lanceolate pseudo-lunule, situated immediately in front of the beaks and a longer lanceolate ligamental groove posterior to the beaks. Interior of shell not accessible in any of the specimens.[3]

The holotype of the species measures 30 mm (1.2 in) in height, 32.5 mm (1.28 in) in length and a thickness of 15 mm (0.59 in) when measuring both valves.[3] The species can be distinguished from L. borealis due to L. taylori having fewer concentric riblets and more widely spaces, and that the anterior and posterior radial sulci of L. borealis are almost completely obsolete.[3] It can be distinguished from L. saetheri due to having a smaller size and having a shorter antero-dorsal margin.[4]

Taxonomy

The species was first described by A. W. B. Powell in 1935 as Myrtea (Lucinoma) taylori.[3] The current accepted scientific name is Lucinoma taylori.[1] The holotype was collected at an unknown date prior to 1935 from fallen rocks at the southern end of Maukatia Bay, south of Muriwai, Auckland Region (then more commonly known as Motutara), and is held in the collections of Auckland War Memorial Museum.[5][6]

Ecology

The species was a deposit feeding bivalve, that was likely preyed upon by the starfish species Pseudarchaster motutaraensis.[7]

Distribution

This extinct marine species occurs in early Miocene strata of the Nihotupu Formation of New Zealand, on the west coast of the Waitākere Ranges of the Auckland Region, New Zealand.[5] The deposits of the Nihotupu Formation in the western Waitākere Ranges where fossils of the species have been found are mid-bathyal 800–2,000 m (2,600–6,600 ft).[7]

References

  1. ^ a b c Lucinoma taylori A. W. B. Powell, 1935 †. Retrieved through: World Register of Marine Species on 20 January 2026.
  2. ^ Maxwell, P.A. (2009). "Cenozoic Mollusca". In Gordon, D.P. (ed.). New Zealand Inventory of Biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Christchurch: Canterbury University Press. p. 236. ISBN 978-1-877257-72-8.
  3. ^ a b c d Powell, A. W. B. (1935). "Tertiary Mollusca from Motutara, West Coast, Auckland". Records of the Auckland Institute and Museum. 1: 327–340. ISSN 0067-0464. JSTOR 42905961. Wikidata Q58676576. This article incorporates text from this source, which is under a CC BY 4.0 license.
  4. ^ Amano, Kazutaka; Little, Crispin T. S.; Campbell, Kathleen A. (2018). "Lucinid bivalves from Miocene hydrocarbon seep sites of eastern North Island, New Zealand, with comments on Miocene New Zealand seep faunas". Acta Palaeontologica Polonica. 63. doi:10.4202/APP.00461.2018. ISSN 0567-7920. Wikidata Q56553304.
  5. ^ a b Blom, Wilma M. (2025). "Annotated Catalogue of Fossil and Extant Molluscan Types in the Auckland War Memorial Museum". Bulletin of the Auckland Museum. 22. doi:10.32912/BULLETIN/22. ISSN 1176-3213. OCLC 1550165130. Wikidata Q135397912.
  6. ^ "Lucinoma taylori". Collections Online. Auckland War Memorial Museum. Retrieved 20 January 2026.
  7. ^ a b Eagle, Michael K. (December 1999). "A new Early Miocene Pseudarchaster (Asteroidea: Echinodermata) from New Zealand". New Zealand Journal of Geology and Geophysics. 42 (4): 551–556. doi:10.1080/00288306.1999.9514861. ISSN 0028-8306. Wikidata Q104119200.