Biology:Pteromyrtea motutaraensis

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Short description: Extinct species of gastropod

Pteromyrtea motutaraensis
Temporal range: early Miocene
Holotype from Auckland War Memorial Museum
Scientific classification edit
Missing taxonomy template (fix): Pteromyrtea
Species:
†P. motutaraensis
Binomial name
†Pteromyrtea motutaraensis
A. W. B. Powell, 1935

Pteromyrtea motutaraensis 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, ovate, longer than high, somewhat inflated, rather thin. Beaks central. Lunule narrowly lanceolate. Anterior wing long and clearly marked off by a groove. Sculpture consisting of extremely fine regular concentric threads, about five per millimetre. Valve margins smooth. Hinge typical, as shown by a paratype.[3]

The holotype of the species measures 17 mm (0.67 in) in height and 21 mm (0.83 in) in length.[3] The species can be identified sue to its more oval outline than other members of Pteromyrtea.[3]

Taxonomy

The species was first described by A. W. B. Powell in 1935.[3] The holotype was collected at an unknown date prior to 1935 from fallen rocks at southern Maukatia Bay, south of Muriwai, Auckland Region (then more commonly known as Motutara), and is held in the collections of Auckland War Memorial Museum.[4][5]

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.[4] The deposits of the Nihotupu Formation in the western Waitākere Ranges where fossils of the species have been founs are mid-bathyal 800–2,000 m (2,600–6,600 ft).[6]

References

  1. ↑ Pteromyrtea motutaraensis A. W. B. Powell, 1935 †. Retrieved through: World Register of Marine Species on 20 January 2026.
  2. ↑ Maxwell, P.A. (2009). "Cenozoic Mollusca". 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. ↑ 3.0 3.1 3.2 3.3  , Wikidata Q58676576 Public Domain This article incorporates text from this source, which is under a CC BY 4.0 license.
  4. ↑ 4.0 4.1  , Wikidata Q135397912
  5. ↑ "Pteromyrtea motutaraensis". Auckland War Memorial Museum. https://www.aucklandmuseum.com/discover/collections/record/216967. 
  6. ↑  , Wikidata Q104119200

Wikidata ☰ Q107319018 entry