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Schizodus ovatus
Taxonomy
Axinus (Schizodus) ovatus was named by Meek and Hayden (1858). It is a 3D body fossil.
It was recombined as Schizodus ovatus by Newell (1940).
It was recombined as Schizodus ovatus by Newell (1940).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1858 | Axinus (Schizodus) ovatus Meek and Hayden p. 262 |
1940 | Schizodus ovatus Newell |
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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.
†Schizodus ovatus Meek and Hayden 1858
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Diagnosis
Reference | Diagnosis | |
---|---|---|
F. B. Meek and F.V. Hayden 1858 | Shell ovate, most gibbous slightly in advance of the middle; anterior extremity broader than the other, somewhat narrowly rounded; posterior end narrow and compressed, obliquely truncate above, sub-angular below. Base semiovate in outline, the most prominent part being in advance of the middle; cardinal edge very short, straight and horizontal, meeting the obliquely truncate posterior margin at an angle of about one hundred and thirty degrees. Beaks located slightly in advance of the middIe, elevated, and incurved at right angles to the hinges, rather distinctly angular down the posterior slopes and obliquely towards the lower part of the posterior extremity. Surface unknown. Length 0.65 inch; heighth 0 45 inch; transverse diameter of the two valves 0-20 inch. |