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Pyreneplax
Taxonomy
Pyreneplax was named by Ossó et al. (2014). Its type is Pyreneplax basaensis.
It was assigned to Vultocinidae by Ossó et al. (2014) and Schweitzer et al. (2022).
It was assigned to Vultocinidae by Ossó et al. (2014) and Schweitzer et al. (2022).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Pyreneplax Ossó et al. p. 35 |
| 2022 | Pyreneplax Schweitzer et al. 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. †Pyreneplax Ossó et al. 2014
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†Pyreneplax basaensis Ossó et al. 2014
†Pyreneplax granosa Beschin et al. 2002
†Pyreneplax sandersi Blow and Manning 1997
†Pyreneplax sommarugai Beschin et al. 2009
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| À. Ossó et al. 2014 | Small to medium sized carapace, suboctagonal, from wider than long to slightly wider than long, somewhat convex in anterior third, widest at third antero-lateral tooth level. Dorsal regions well defined, elevated, ornamented with granules; delimited by large and smooth grooves. Frontal margin bilobed, slightly advanced, edge granulated. Orbits oval, oblique, separated from frontal margin by a deep fold; supraorbital margin with three teeth separated by two notches, inner orbital, subtriangular, prominent. Anterolateral margins with four rounded and granulated teeth (outer orbital spine excluded); first one smallest, at lower level. Posterolateral margins slightly convex, ornamented with granules. Posterior margin slightly convex, medially depressed, rimmed. Cervical and hepato-gastric grooves well-marked, broad, smooth. Gas- tric process well-marked; epigastric lobes swollen; proto- gastric lobes, swollen, oval, U- shaped, anterior portion medially depressed; mesogastric lobe broad posteriorly, anterior portion slender, low, long, reaching basal portion of epigastric lobes; metagastric lobe indistinct; urogastric region swollen, well delimited from meso-metagastric lobe by narrow groove with gastric pits. Cardiac region swollen, broadly T-shaped. Intestinal region transversely elongate, inflated, narrow, subparallel along posterior margin medially divided by small smooth depression. Hepatic region inflated. Branchial regions well defined by swollen lobes, separated by broad, shallow, smooth grooves; epibranchial lobe subdivided in two, supra- epibranchial lobe transversely elongate, from horizontal to oblique, directed to fourth anterolateral tooth, sub-epibranchial lobe from rounded to triangular, both delimited by shallow smooth groove; mesobranchial lobe inflated. Thoracic sternum flattened, covered by coarse granules; sternite 3 with a shallow longitudinal median groove that connects with sterno-abdominal cavity reaching end of sternite 4; sternites1 and 2 fused subtriangular; sternite 3 inverted subtriangular; sternite 4 subtrapezoidal, with prominent lateral edges with parallel grooves; sternites 5 and 6 subtrapezoidal elongate;suture 1/2 absent; suture 2/3 complete; suture 3/4 distinct, separated by groove, suture visible only laterally; sutures 4/5, 5/6 medially interrupted; episternites not laterally extended. Male abdomen apparently narrow; telson subtriangular, rounded tip; somites 1-3 subrectangular, transversely narrow, medially inflated, covered by uniformly distributed granules. Ischium of third maxilliped subrectangular with median sulcus, inner margin convex, outer margin concave, covered by scarce granules; exognath slender; merus subquadrate. |