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Metopaster tenneseensis
Taxonomy
Metopaster tenneseensis was named by Wade (1926). It is not extant. Its type specimen is USNM, type specimen not yet identified.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1926 | Metopaster tenneseensis Wade pp. 27-28 figs. pl. 1 fig. 11-19 |
1948 | Metopaster tenneseensis Durham and Roberts p. 432 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Metopaster tenneseensis Wade 1926
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Diagnosis
Reference | Diagnosis | |
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B. Wade 1926 | Marginal plates thick and subequidimensional; form variable, roughly the shape of a section of a cylinder; outer surface a subrectangular section of the face of a cylinder; inner surface of plates subrectangular; end surfaces trigonal or quadrilateral, depending upon the position of the plate; outer surface of plates covered with an epidermal layer pitted with numerous small shallow holes of variable size and spacing; inner surface smooth, flat to concave. Width 5 mm., length 4 mm., thickeness 3 mm. |