Cuspidariidae, Dall, 1886
publication ID |
https://doi.org/10.4202/app.01179.2024 |
persistent identifier |
https://treatment.plazi.org/id/4019EF34-4E7A-FF82-CC09-FB0676623045 |
treatment provided by |
Felipe |
scientific name |
Cuspidariidae |
status |
|
Cuspidariidae View in CoL ? gen. et sp. indet.
Fig. 20 View Fig .
Material.— One fragmentary valve ( SMF373084 About SMF ) from Northern Indian Ocean, Krishna-Godavari Basin , Bay of Bengal, offshore eastern India, 15°51.6335’ N, 81°50.2274’ E, 1046 m water depth, 16.88 mbsf level, core NGHP-01-12A; Upper Pleistocene GoogleMaps .
Description.—Small fragile, flattened shell, inequilateral. Outline uncertain. Sculpture with fine radial and commarginal lines. Internal hinge with deep notch in external margin below the umbo, no teeth seen. Length about 3 mm.
Remarks.—Placement in Cuspidariidae is feasible from the external morphology and hinge. The radial sculpture suggests a species in the genus Cardiomya Adams, 1864 , albeit that our species has relatively flat valves and known species in the Indo-Pacific are rather globose. Alternatively, it could be placed in another genus in Cuspidariidae or Protocuspidariidae . The material was deemed inadequate for a determination, or description as a new species.
Class Scaphopoda Bronn, 1862 View in CoL
Order Dentalida Starobogatov, 1974
Family Dentaliidae Children, 1834 View in CoL
Dentaliidae View in CoL ? gen. et sp. indet.
Fig. 21A–C View Fig .
Material.— Three shells ( SMF373085–87 About SMF ) from Northern Indian Ocean, Krishna-Godavari Basin , Bay of Bengal, offshore eastern India, 15°51.6335’ N, 81°50.2274’ E, 1046 m water depth, 16.78 mbsf level, core NGHP-01-12A; Upper Pleistocene. For additional material see Table 1 GoogleMaps .
Description.—small, weakly curved, solid scaphopod toothshaped shell with strong axial rib sculpture. small, globose, solid inflated gadilid-shaped shell. Apex small, pointed with circular hole, rectangular outline. Intial strong increase in diameter, less thickening in adult stage. Sculpture with large rounded axial ribs, apically 4 ribs increasing to 9 ribs abapically with incremental ribs progressively formed in between. Maximum length 7 mm.
Remarks.—Placement in Dentaliidae is plausible from the external morphology and outline in the few fragmentary shells. They likely belong to a single species in the genus Antalis Adams & Adams, 1854 . Alternatively, they could be placed in another genus in Dentaliidae or in the genus Entalina Monterosato, 1872 , in family Entalinidae Chistikov, 1979 . The material was deemed inadequate for a determination, or description as a new species.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
Kingdom |
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Phylum |
|
Class |
|
Family |
Cuspidariidae
Little, Crispin T. S., Kumar, Rajendar, Johnson, Joel E. & Hoffman, Leon 2025 |
Dentalida
Starobogatov 1974 |
Scaphopoda
Bronn 1862 |
Dentaliidae
Children 1834 |
Dentaliidae
Children 1834 |