Leptotrypella armata, Ernst & Fernández & Fernández-Martínez & Vera, 2012
publication ID |
https://doi.org/ 10.5252/g2012n4a1 |
persistent identifier |
https://treatment.plazi.org/id/03A6D074-FFFA-7E04-FCF1-FD94FDE5FD10 |
treatment provided by |
Marcus |
scientific name |
Leptotrypella armata |
status |
sp. nov. |
Leptotrypella armata n. sp. ( Figs 13D, E View FIG ; 14 View FIG A-F; Appendix)
ETYMOLOGY. — The species name refers to the abundant and massive acanthostyles (derived from Latin “ armata ”= armoured)
HOLOTYPE. — SMF 21.238 About SMF .
PARATYPES. — SMF 21.239- SMF 21.253, SMF 21.385.
TYPE LOCALITY. — Arauz Sur (Arroyo section), Province of Palencia, NW-Spain (Cantabrian Mountains).
TYPE HORIZON. — Lebanza Formation, Lower Devonian (Pragian).
DIAGNOSIS. — Branched colonies with distinct endozones and exozones; autozooecial diaphragms absent in endozones, common to abundant, thin and straight in exozones; exilazooecia locally common; acanthostyles moderately large, abundant, 5-12 surrounding each autozooecial aperture; mural spines abundant; maculae not observed.
DESCRIPTION
Branched colonies. Branches 0.81-1.35 mm in diameter. Exozones 0.24-0.48 mm wide, endozones 0.27-0.71 mm wide. Autozooecia long, having a polygonal shape in transverse section in endozones, bending sharply in exozones and intersecting colony surface at angles of 88-90°. Autozooecial apertures oval to slightly polygonal. Autozooecial diaphragms absent in endozones; common to abundant, thin, straight in exozones. Exilazooecia locally common, short, restricted to exozones, rounded to oval in cross section. Acanthostyles moderately large, varying in size, abundant, 5-12 surrounding each autozooecial aperture, growing from the base of the exozone, having distinct cores and laminated sheaths. Autozooecial walls in endozones granular, 0.010 -0.015 mm thick; in exozones laminated, merged, without distinct zooecial boundaries, 0.035 -0.070 mm thick. Mural spines abundant, 0.015 -0.020 mm in diameter. Maculae not observed.
COMPARISON Leptotrypella armata n. sp. differs from L. elliptica Kopajevich, 1984 from the Middle-Upper Devonian of Mongolia, in having thinner branches (branch width 0.81-1.35 mm vs 2.0- 2.2 mm in L. elliptica ), and smaller apertures (aperture width 0.05-0.10 mm vs 0.07-0.13 mm in L. elliptica ).
SMF |
Forschungsinstitut und Natur-Museum Senckenberg |
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.
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Genus |
Leptotrypella armata
Ernst, Andrej, Fernández, Luis Pedro, Fernández-Martínez, Esperanza & Vera, Carmen 2012 |
Leptotrypella armata
Ernst & Fernández & Fernández-Martínez & Vera 2012 |
L. elliptica
Kopajevich 1984 |
L. elliptica
Kopajevich 1984 |
L. elliptica
Kopajevich 1984 |