Gen. indet.
publication ID |
https://doi.org/10.5252/geodiversitas2021v43a5 |
publication LSID |
urn:lsid:zoobank.org:pub:697FC553-E37B-4EF9-97A4-950E4DEE246C |
DOI |
https://doi.org/10.5281/zenodo.4606629 |
persistent identifier |
https://treatment.plazi.org/id/03923C45-FF8C-FF85-3170-FF08FEC51521 |
treatment provided by |
Felipe (2021-03-15 17:13:15, last updated 2024-11-26 04:12:25) |
scientific name |
Gen. indet. |
status |
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EXAMINED MATERIAL. — FSAC Bouj-371, ( Fig. 5E View FIG ), incomplete fin spine.
DESCRIPTION
This proximal fragment of fin spine includes articular processes and a proximal portion of the shaft. The shaft is smooth and shows a lentoid cross-section.The anterior surface is dissymmetrical, the right half showing a depression. The posterior surface is crossed by a thin posterior sulcus. The lumen is well-marked but the basal bar, which extends from the two lateral articular processes, is broken. The anterior and posterior articular processes are not very developed, but they were probably smoothed by erosion.
REMARKS
Based on the absence of ornamentation and the morphology of the articular processes, the spine Bouj-371 is comparable to unpaired fin spines of extant percomorphs, like serranids or latids.
FIG. 5. — Actinopterygii and Testudines from the Sabkha of Gueran: A-G, Actinopterygii: Cylindracanthus sp., FSAC Bouj-356, rostrum in (A1) lateral and (A2) transversal views; B-E, Percomorpha indet.: B, FSAC Bouj-369,vertebra in (B1) lateral and (B2) transversal views; C, FSAC Bouj-363, vertebra in (C1) lateral and (C2) transversal views; D, FSAC Bouj-370, basioccipital in left lateral view; E, FSAC Bouj-371, fin spine in anterior view; F, Scombridae indet., FSAC Bouj-358, incomplete jawbone in labial view; G, Siluriformes indet., FSAC Bouj-372, right pectoral spine in anterior view; H-P, Testudines: H-L, Cheloniidae indet., FSAC Bouj-109,fragmentary costal in (H1) lateral transection, (H2) ventral, (H3) dorsal and (H4) medial transection views; I, FSAC Bouj-352,fragmentary lateral process of right hyoplastron in (I1) ventral and (I2) dorsal views; J, FSAC Bouj-351, subcomplete right hypoplastron in (J1) ventral and (J2) dorsal views; K, FSAC Bouj- 353, fragment of dermal plate, unlocated on the carapace, in dorsal view; L, FSAC Bouj-354, fragment of dermal plate, unlocated on the shell in (L1, L2) both faces; M, Dermochelyidae indet., FSAC Bouj-350, lateral pubic process of right pubis in (M1) ventral and (M2) dorsal views; N,? Podocnemidoidea indet., FSAC Bouj-196, fragment of right hypoplastron in (N1) dorsal and (N2) ventral views; O, Indeterminata (? Podocnemidoidea indet.), FSAC Bouj-95, fragment of dermal plate of carapace in (O1) dorsal and (O2) ventral views; P, Gueran turtles, pieces of the four fragments of Figure 5I, J, L and M, as preserved in view of conjunction in situ. Scale bars: 20 mm.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.