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Stillatuberoolithus storrsi
Taxonomy
Stillatuberoolithus storrsi was named by Oser et al. (2021). It is considered to be a form taxon. Its type specimen is DMNH EPV.65602, an egg, and it is a 3D body fossil. It is the type species of Stillatuberoolithus.
Synonymy list
| Year | Name and author |
|---|---|
| 2021 | Stillatuberoolithus storrsi Oser et al. p. 2 |
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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.
†Stillatuberoolithus storrsi Oser et al. 2021
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. E. Oser et al. 2021 | Eggs are small (partial eggs indicate 17.7 mm diameter); eggshell displays dispersitu- berculate ornamentation consisting of irregularly spaced, flattened nodes which grade from circular to oval in plan view (with long axes of oval nodes aligned) over the surface of the egg; eggshell thickness ranging from 0.31 to 0.40 mm (0.31–0.59 mm including ornamentation); two structural layers of calcite include the mammillary layer (ML) and continuous layer (CL) which are delineated by an abrupt, linear boundary; ML:CL thickness ratio of 1:1.1–1:1.5; pores are funnel-shaped through the mammillary and continuous layers, increasing in diameter from the interior of the eggshell towards the surface and branching in the nodes; pore openings at the surface are small (0.03–0.04 mm) and located on the nodes; nodes are crystallographically discontinuous from the CL. |