1,721,003 research outputs found
Les Lepidotes (Actinopterygii, Semionotiformes) du Crétacé inférieur (Barrémien) de Las Hoyas (Province de Cuenca, Espagne)
No full textWenz, S. (2003): Les Lepidotes (Actinopterygii, Semionotiformes) du Crétacé inférieur (Barrémien) de Las Hoyas (Province de Cuenca, Espagne). Geodiversitas 25 (3): 481-499, DOI: 10.5281/zenodo.537533
FIG. 6 in Les Lepidotes (Actinopterygii, Semionotiformes) du Crétacé inférieur (Barrémien) de Las Hoyas (Province de Cuenca, Espagne)
No full textFIG. 6. — Détail de la joue; A, Lepidotes tanyrhis n. sp. (ADR- 0118); B, Lepidotes microrhis n. sp. (MCCM LH-16338). Abréviations: cio, canal infraorbitaire; Io, infraorbital; Iop, interopercule; Md, mandibule; Op, opercule; Pop, préopercule; Q, carré; Sbo, sousorbital; Sop, sousopercule. Échelles: 1 cm.Published as part of Wenz, S., 2003, Les Lepidotes (Actinopterygii, Semionotiformes) du Crétacé inférieur (Barrémien) de Las Hoyas (Province de Cuenca, Espagne), pp. 481-499 in Geodiversitas 25 (3) on page 491, DOI: 10.5281/zenodo.537533
FIG. 3. — Lepidotes microrhis n in Les Lepidotes (Actinopterygii, Semionotiformes) du Crétacé inférieur (Barrémien) de Las Hoyas (Province de Cuenca, Espagne)
No full textFIG. 3. — Lepidotes microrhis n. sp., schéma interprétatif du crâne en vue latérale, holotype (MCCM LH-8010). Abréviations: Ang, angulaire; Ant, antorbital; Cl, cleithrum; Dpt, dermoptérotique; Dsph, dermosphénotique; Dspl, dentalosplénial; Exc, extrascapulaire; Fr, frontal; Io, infraorbital; Iop, interopercule; Mpa, marge de recouvrement du pariétal; Mx, maxillaire; Na, nasal; Op, opercule; Pa, pariétal; Pcl, postcleithrum; Pmx, prémaxillaire; Pop, préopercule; prpmx, processus ascendant du prémaxillaire; Ptemp, posttemporal; Q, carré; Rbr, rayon branchiostège; Ros, rostral; Sang, susangulaire; Sbo, sousorbital; Scl, supracleithrum; Smx, supramaxillaire; So, supraorbital; Sop, sousopercule; (d), droit; (g), gauche. Échelle: 1 cm.Published as part of Wenz, S., 2003, Les Lepidotes (Actinopterygii, Semionotiformes) du Crétacé inférieur (Barrémien) de Las Hoyas (Province de Cuenca, Espagne), pp. 481-499 in Geodiversitas 25 (3) on page 487, DOI: 10.5281/zenodo.537533
Anomoeodus Forir 1887
No full textGenus Anomoeodus Forir, 1887 TYPE SPECIES. — Pycnodus subclavatus Agassiz, 1833. INCLUDED SPECIES. — The type species, A. angustus (Agassiz, 1837), A. willetti Woodward, 1893, and A. nursalli Kriwet, 1999; plus numerous nominal species based on isolated dentitions.Published as part of Poyato-Ariza F. J. & Wenz S., 2002, A new insight into pycnodontiform fishes, pp. 139-248 in Geodiversitas 24 (1) on page 221, DOI: 10.5281/zenodo.537164
Ichthyoceros Gayet 1984
No full textGenus Ichthyoceros Gayet, 1984 TYPE SPECIES. — By original designation: Ichthyoceros spinosus Gayet, 1984. Cenomanian from Hakel, Lebanon. Holotype of Ichthyoceros spinosus by original designation: MNHN HAK-106. MATERIAL EXAMINED. — Holotype ** (complete specimen, excellent preservation). Other specimens: MNHN HAK-298, MCSNM 3045 A-B (specimen showing dentition); NHML 62376 (all complete specimens).Published as part of Poyato-Ariza F. J. & Wenz S., 2002, A new insight into pycnodontiform fishes, pp. 139-248 in Geodiversitas 24 (1) on pages 147-148, DOI: 10.5281/zenodo.537164
Mesturidae Nursall 1996
No full textFamily MESTURIDAE Nursall, 1996 TYPE GENUS. — Mesturus Wagner, 1862. INCLUDED GENERA. — The type genus, and Micropycnodon Hibbard & Graffham, 1945. REVISED DIAGNOSIS. — Primitive pycnodontiform fishes with the following unique combination of derived characters: maxilla ornamented and elongated; grooves and strong crenulations present on most vomerine and prearticular teeth; anal fin at 60-69% of standard length; first dorsal ridge scale larger than subsequent dorsal ridge scales.Published as part of Poyato-Ariza F. J. & Wenz S., 2002, A new insight into pycnodontiform fishes, pp. 139-248 in Geodiversitas 24 (1) on page 218, DOI: 10.5281/zenodo.537164
FIG. 11. — Oropycnodus ponsorti n in A new insight into pycnodontiform fishes
No full textFIG. 11. — Oropycnodus ponsorti n. comb., paralectotype, NMW 1854.XXXIX.40, left side, lateral view; A, complete specimen. Photo Schumacher, courtesy Ortwin Schultz; B, detail of the posterior region of the skull roof. Abbreviations: dmfe, dermocranial fenestra; drs, dorsal ridge scales; drs1, dorsal ridge scale 1; end, endocranium (posteriorly exposed); Fr, frontal; papr, parietal process; pcla postcephalic lacuna; Socc, dermal supraoccipital. Scale bars: A, 1 cm; B, 5 mm.Published as part of Poyato-Ariza F. J. & Wenz S., 2002, A new insight into pycnodontiform fishes, pp. 139-248 in Geodiversitas 24 (1) on page 162, DOI: 10.5281/zenodo.537164
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
FIG. 35. — A in A new insight into pycnodontiform fishes
No full textFIG. 35. — A, caudal region of specimen NHML P.37023 of Mesturus verrucosus Wagner, 1862. Arrows indicate a change in the direction of the scale rows. Notice the rows of thin scales between the bases of the dorsal and anal fin rays, and the strong ornamentation of the scales. Right side. Photo courtesy P. Forey; B, holotype of Nursallia? goedeli Heckel, 1854, NMW 1858.III.21, showing complete scales partially covering the caudal region (upper arrows) and a similar change in the direction of the scales rows (lower arrows). Left side. Photo Schumacher, courtesy Ortwin Schultz. Scale bars: 1 cm.Published as part of Poyato-Ariza F. J. & Wenz S., 2002, A new insight into pycnodontiform fishes, pp. 139-248 in Geodiversitas 24 (1) on page 190, DOI: 10.5281/zenodo.537164
- …
