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Glossopleura
Taxonomy
Glossopleura was named by Poulsen (1927) [Sepkoski's age data: Cm mMid-l Sepkoski's reference number: 80].
It was assigned to Dolichometopidae by Palmer and Halley (1979) and Jell and Adrain (2002); to Corynexochida by Sepkoski (2002); and to Dolichometopidae by Palmer (1954) and Foster (2022).
It was assigned to Dolichometopidae by Palmer and Halley (1979) and Jell and Adrain (2002); to Corynexochida by Sepkoski (2002); and to Dolichometopidae by Palmer (1954) and Foster (2022).
Species
G. alabamensis, G. baton, G. bion, G. boccar (syn. G. mckeei, G. stephenensis, G. nitida, G. bosworthensis), G. buttsi, G. expansa, G. gigantea, G. intermedia, G. leona, G. lodensis, G. mohavensis (syn. Sonoraspis californica, Sonoraspis nelsoni), G. packi, G. producta (syn. Ogygia parabola), G. similaris, G. sulcata, G. tuta, G. utahensis, G. walcotti
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Glossopleura Poulsen |
| 1952 | Sonoraspis Stoyanow |
| 1954 | Glossopleura Palmer p. 67 |
| 1955 | Sonoraspis Stoyanow and Susuki p. 469 |
| 1979 | Glossopleura Palmer and Halley p. 78 |
| 2002 | Glossopleura Jell and Adrain p. 379 |
| 2002 | Glossopleura Sepkoski |
| 2022 | Glossopleura Foster p. 14 |
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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.
G. †Glossopleura Poulsen 1927
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†Glossopleura alabamensis Resser 1935
†Glossopleura baton Walcott 1916
†Glossopleura bion Walcott 1916
†Glossopleura boccar Walcott 1916
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Invalid names: Glossopleura bosworthensis Resser 1935 [synonym], Glossopleura mckeei Resser 1935 [synonym], Glossopleura nitida Resser 1935 [synonym], Glossopleura stephenensis Resser 1935 [synonym]
†Glossopleura buttsi Resser 1935
†Glossopleura expansa Poulsen 1927
†Glossopleura gigantea Resser 1939
†Glossopleura intermedia Resser 1938
†Glossopleura leona Lochman 1952
†Glossopleura lodensis Clark 1921
†Glossopleura mohavensis Resser 1935
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Invalid names: Sonoraspis californica Stoyanow and Susuki 1955 [synonym], Sonoraspis nelsoni Stoyanow 1958 [synonym]
†Glossopleura packi Resser 1935
†Glossopleura producta Hall and Whitfield 1877
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Invalid names: Ogygia parabola Hall and Whitfield 1877 [synonym]
†Glossopleura similaris Resser 1939
†Glossopleura sulcata Poulsen 1927
†Glossopleura tuta Resser 1945
†Glossopleura utahensis Resser 1935
†Glossopleura walcotti Poulsen 1927
Invalid names: Sonoraspis Stoyanow 1952 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Palmer 1954 | Cephalon subsemicircular in outline; posterior margin straight; distinct genal spines extend backward from posterolateral corners. Cranidium with glabella moderately well to poorly defined by dorsal furrow, extended to anterior margin, slightly expanded forward or of nearly constant width. Glabellar furrows shallow or absent; when visible, four pairs usually present. Occipital furrow shallow. Occipital ring flat, unspined. Border absent. Brini, when present, nar- row, only at sides of glabella. Fixed cheeks about one- half width of glabella; palpebral lobes long, poorly defined; anterior ends nearly touching dorsal furrow, posterior eads about opposite occipital furrow. Poste- rior limbs narrow, about as long as occipital ring; marginal furrow shallow.
Free cheek with evenly rounded margin and prominent genal spine. Border differentiated from ocular platform, variable in width. Thorax of 7 or 8 segments. Axial lobe prominent, width equal to or less than that of pleural lobes. Pleural lobes of each segment subequally divided by pleural furrow. Segments terminate distally in short, sharp spines. Pygidium subsemicircular in outline about as large as cephalon. Axial lobe prominent, tapered slightly posteriorly, reaching to or onto broad, flat or concave border. Furrows on axial and pleural lobes shallow or absent. |