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Schramocaris gilljonesorum
Taxonomy
Schramocaris gilljonesorum was named by Clark et al. (2016). Its type specimen is GLAHM 152432, a carapace (isolated carapace), and it is a 3D body fossil. Its type locality is Stenders Quarry, Mitcheldean, Forest of Dean, which is in a Hastarian carbonate mudstone in the Avon Bed 4 Formation of the United Kingdom. It is the type species of Schramocaris.
Synonymy list
| Year | Name and author |
|---|---|
| 2016 | Schramocaris gilljonesorum Clark et al. figs. 3, 4, 5C |
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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.
†Schramocaris gilljonesorum Clark et al. 2016
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| N. D. L. Clark et al. 2016 | Body shape cylindrical to slightly applanated, carapace about half the length of the body or slightly more, anterolateral spines on carapace, V-shaped cervical groove that connects anteriorly to the rostral groove and posteriorly is split by the medial carina; paired post-orbital ridges; longitudinal rugose carinae, or ridges, in the branchial region of the carapace; second lateral carina less distinct and in some examples fades across the branchial region; the anterior portion of the first lateral carina forms a ridge along the cervical groove; three carinae on the anterior portion of the first pleomere; first five pleonal tergites equal in length, with the sixth nearly twice the length of the others; telson as broad as long with central carina and lateral processes. |