Nannotax3 - ntax_Farinacci - Palaeomicula jacovidesii Nannotax3 - ntax_Farinacci - Palaeomicula jacovidesii

CATALOG - Palaeomicula jacovidesii


Folder trail: ntax_Farinacci -> P -> Palaeomicula -> Palaeomicula jacovidesii
Folders this level: P. jacovidesii

Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Farinacci & Howe Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was originally compiled by Prof A. Farinacci 1969-1989, since 2000 it has been updated and extended by Richard Howe - see The Farinacci and Howe Catalog - an Introduction.
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Current identification/main database link: Palaeomicula jacovidesii Varol & Bowman 2019

Compiled data

Citation: Palaeomicula jacovidesii Varol & Bowman 2019
taxonomic rank: species
Type specimens: Holotype: Fig. 10.19–10.22 (same specimen)
Type age (chronostrat): Late Tithonian
Standardised type level: 050_UPPER JURASSIC
Type locality: De Soto Canyon, Gulf of Mexico
Type repository: Houston: Equinor (Statoil), Houston Office, Room 17.507. Repository number: 17M Tithonian Collection [Slide Box 1/1].
Repository Country: Wales, UK
Current citation: Palaeomicula jacovidesii Varol & Bowman 2019


Original Description

Diagnosis: Medium-sized (4.0–7.0 μm) circular species of Palaeomicula having four imbricated and triangular segments positioned along the sinusoidal sutures.

Description: Paleomicula jacovidesii is a circular nannolith having four smooth imbricated and triangular segments and distinct sinusoidal sutures. The thick imbricated edges of the segments along the sinusoidal sutures can be clearly observed.

Size:
Dimensions of holotype: Diameter = 5.78 μm.

Etymology:
In honor of micropaleontologist Jake Jacovides, Millennia, Lechlade, Glos. GL7 3QQ, United Kingdom.

Extra details from original publication
Remarks: Paleomicula jacovidesii is easily distinguished from the other species of Paleomicula by being circular and having sinusoidal sutures and imbricated triangular segments. Tetralithus quadrisphenus and Palaeomicula maltica have quadrate outlines with wedge-shaped segments.

Occurrence: Paleomicula jacovidesii was recorded in Upper Tithonian sediments of the Eastern Gulf of Mexico and the Blake-Bahama Basin, Atlantic Ocean (DSDP Leg 76, Site 534).

Stratigraphic range: Upper Tithonian.

References:

Varol, O. & Bowman, A. R. (2019). Taxonomic revision of selected Late Jurassic (Tithonian) calcareous nannofossils and the application of mobile mounting. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 291: 65-87. gs


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Palaeomicula jacovidesii: Catalog entry compiled by <% compiler %>. Viewed: 7-9-2024

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