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Showing results for tags 'luoping'.
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From the album: Vertebrates
Platysiagum sinensis Wen et al., 2019 Middle Triassic Anisian Guanling Formation Luoping Yunnan PRC -
Barracudasauroides panxianensis (Jiang, Schmitz, Hao & Sun, 2006)
oilshale posted a gallery image in Member Collections
From the album: Vertebrates
Barracudasauroides panxianensis (Jiang, Schmitz, Hao & Sun, 2006) Middle Triassic Anisian (Pelsonian) Luoping Yunnan PRC Alternative name: Mixosaurus panxianensis Jiang, Schmitz, Hao & Sun, 2006. Length 90cm-
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- barracudasauroides
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Barracudasauroides panxianensis (Jiang, Schmitz, Hao & Sun) 2006
oilshale posted a gallery image in Member Collections
From the album: Vertebrates
Barracudasauroides panxianensis (Jiang, Schmitz, Hao & Sun) 2006 Middle Triassic Luoping Yunnan PRC Alternative name: Mixosaurus panxianensis Jiang, Schmitz, Hao & Sun, 2006. -
Taxonomy from Fossilworks.com. Xu & Wu 2012, p. 112: "Etymology: The generic name is derived from kyphos (Greek), meaning bent and referring to its lumped back, and ichthys (Greek), meaning fish. The species name honors Lance Grande for his recent, valued contribution to the study of the Ginglymodi." Emended diagnosis from Sun & Ni, 2017, p. 3: "(Possible autapomorphies marked with *). Small- to medium-sized, deep-bodied ginglymodian with a remarkable hump between head and dorsal fin (juveniles much more rounded, without the hump). A short, broad, squarish rostral bone; the dorsalmost suborbital bone(s) separating preopercle from dermopterotic bone; two anterior infraorbital bones; seven infraorbital bones between antorbital and dermosphenotic bones; infraorbital bone at the posteroventral corner of the orbit enlarged posteriad, reaching the anterior margin of the preopercle and laterally covering the quadrate; a large splint-like quadratojugal lateral to the quadrate; a short maxilla with a deep supramaxillary notch; two pairs of extrascapular bones; a rounded median gular plate. A compound first pectoral ray fused with basal and fringing fulcra; dorsal and anal fins far posteriorly located, with the insertion of dorsal fin five/six scale rows behind that of the anal fin; presence of scale-like fin rays. A complete scale row bordering the posterior margin of the dorsal body lobe, lacking additional incomplete scale rows. Scales smooth on the surface except for the anterior flank scales which are ornamented with ganoine ridges; posterior margin of scales with spare serrations. Pterygial formula of (D20-21/P7-9A16C25)T29-30." Line drawing from Sun & Ni, 2017, p. 4: References: Xu & Wu, (2012). A deep-bodied ginglymodian fish from the Middle Triassic of eastern Yunnan Province, China, and the phylogeny of lower neopterygians. Chinese Science Bulletin, January 2012 Vol.57 No.1: 111-118. http://www.springerl...28/fulltext.pdf Sun, Z., & Ni, P. (2017). Revision of Kyphosichthys grandei Xu & Wu, 2012 from the Middle Triassic of Yunnan Province, South China: implications for phylogenetic interrelationships of ginglymodian fishes. Journal of Systematic Palaeontology, 16(1), 67–85. doi:10.1080/14772019.2016.1269049
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From the album: Vertebrates
Saurichthys spinosa Su, Wu & Fang, 2017 Middle Triassic Anisian Guangling Formation Dawazi Yunnan PRC -
From the album: Vertebrates
Kyphosichthys grandei Xu & Wu, 2012 Middle Triassic Pelsonian Luoping Yunnan PCR -
From the album: Vertebrates
Habroichthys broughi Lin et al., 2011 Middle Triassic Pelsonian Luoping Yunnan PCR -
Taxonomy from Fossilworks.org. Etymology: From Luoping County (Yunnan Province, South China), where the new fossiliferous site yielding these specimens is located; dedicated to Lev Semenovich Berg (1876—1950), a famous geographer and biologist, member of the Academy of Sciences of the USSR, for his great contributions to the study of fossil fishes. Diagnosis for the genus from Sun et al. 2009, p. 462: “Fusiform to deep fusiform polzbergid. Preopercular sickle-shaped, with a short infraorbital process, a vertically oriented dorsal region and an expanded, anteriorly curved, ventral one. Premaxillary, extending antero-dorsally to the maxillary for at least 2/3 of its length; thin procumbent anterior teeth. No field of modified scales at the base of anal fin. Caudal fin with four or five epaxial rays." Diagnosis for the species from Sun et al. 2009, p. 462: "Medium-sized Luopingichthys, with a fusiform body. Six teeth borne by premaxillary, three or four by maxillary and six by dentary. Coronoid(s) present; skull bones heavily ornamented with tubercles, short ridges and small patches of ganoine randomly arranged. Ornamentation on scales reduced to faint longitudinal ridges giving rise to a posterior serration; mid-dorsal ridge scales well differentiated. Stout fringing fulcra on dorsal and anal fins. Caudal fin with rudimentary lepidotrichia and four or five epaxial rays." Drawing of the skull from Sun et al. 2009 (scale bar equals 5mm): References: Z. Sun, A. Tintori, D. Jiang, C. Lombardo, M. Rusconi, W. Hao, and Y. Sun. 2009. A New Perleidiform (Actinopterygii, Osteichthyes) from the Middle Anisian (Middle Triassic) of Yunnan, South China. Acta Geologica Sinica 83(3):460-470.
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The fish was described in 2011 by López-Arbarello et al. under the name Sangiorgioichthys sui and transferred by Xu et al. in 2019 to the newly erected genus Lanshanichthys. Alternative combination: †Sangiorgioichthys sui López-Arbarello et al. 2011. Taxonomy according to Fossilworks.org. Diagnosis for the genus Lanshanichthys from Xu et al 2019, p. 185: “Nasal narrow and curved; frontal 1.8 times as long as parietal; presence of two to four supraorbitals; seven or eight infraorbitals, including two or three between lacrimal and posteroventral infraorbital; three or four suborbitals, separated by posteroventral infraorbital into two or three dorsal ones and single ventral one; presence of preopercle/ dermopterotic contact; supramaxilla nearly half of length of maxilla (excluding anteromedial process); opercle 2.2–3.0 times as deep as subopercle (excluding anterodorsal process); median gular nearly circular, 0.4 times as long as lower jaw; 19–21 principal caudal rays.” Diagnosis of the species Sangiorgioichthys sui according to López-Arbarello et al. 2011, p. 27: “Species of Sangiorgioichthys Tintori and Lombardo, 2007, distinguished by the following combination of features: two pairs of extrascapular bones, the medial paired usually fused to the parietals; maxilla with a complete row of small conical teeth; supramaxilla long, more than half of the length of the maxilla; only two large suborbital bones posterior to the orbit, a dorsal smaller and a ventral much larger elements; flank scales with finely serrated posterior borders. " Description of the species Sangiorgioichthys sui according to López-Arbarello et al. 2011, p. 28: “Resembling the other species of this genus, Sangiorgioichthys sui n. sp. is a rather small and fusiform fish (Fig. 2). The standard length (SL) of the holotype is 81 mm, the total length being >105 mm and the maximum body-depth 30 mm: the ratio of body-length vs. body-depth is 3.5. The orbit is about 9 mm, 32% of the head length. The studied specimens vary between 42 mm and 124 mm SL. The length of the head ranges between 29–43 % of the SL, showing a nice negative correlation with the size of the specimens, i.e. the smaller individuals have larger heads and vice versa (Fig. 3: HL/SL). The opposite trend is observed in the depth of the body, which ranges between 34–49% of the SL from smaller to larger individuals (Fig. 3:BD/SL).” Reconstruction according to López-Arbarello et al. 2011, p. 28: Identified by oilshale using López-Arbarello et al. 2011. References: López-Arbarello, A., Sun, Z. Y., Sferco, E., Tintori, A., Xu, G. H., Sun, Y, L., Wu F. X., and Jiang, D. Y. (2011): New species of Sangiogioichthys Tintori and Lombardo, 2007 (Neopterygii, Semionotiformes) from the Anisian of Luoping (Yunnan Province, South China). Zootaxa 2749:25-39. DOI: 10.11646/zootaxa.2749.1.2 Sun Z. Y., Ni P. G., (2018): Revision of Kyphosichthys grandei Xu & Wu, 2012 from the Middle Triassic of Yunnan Province, South China: implications for phylogenetic interrelationships of ginglymodian fishes. J. Syst Palaeont, 16: 67– 85. DOI: 10.1080/14772019.2016.1269049 Xu G. H., Ma, X. Y., Wu, F. X., and Y. Ren, Y. (2019): A Middle Triassic kyphosichthyiform from Yunnan, China, and phylogenetic reassessment of early ginglymodians. Vertebrata PalAsiatica 57:181-204. DOI: 10.19615/j.cnki.1000-3118.190319
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- †lashanichthys
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This is an unprepped ichthyosaur from Luoping, Yunnnan Province of China. It measures 70cm in length. Any idea which species is that? And the completeness of the fossil?
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This is an incomplete specimen of marine reptile from Luoping, Yunnan Province of China. Triassic. Any idea what is the species? It looks like Diandongosaurus.
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This is a specimen from Luoping, Yunnan Province of China. Triassic. It looks like a conifer. Is it a plant fossil ? Plant fossils are rarely found in the Triassic formation there.
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This pair of coelacanths is from Luoping, Yunnan. Is it a Luopingcoelacanthus species? It measures about 28cm in length.
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References: SCHWEITZER, C., FELDMANN, R.,HU, S.,HUANG, J., ZHOU, C., ZHANG, Q.,WEN, W., Xie, T.(2014): PENAEOID DECAPODA (DENDROBRANCHIATA) FROM THE LUOPING BIOTA (MIDDLE TRIASSIC) OF CHINA: SYSTEMATICS AND TAPHONOMIC FRAMEWORK. Journal of Paleontology, 88(3), 2014, p. 457–474. Quote: "Although the lobsters were interpreted as having relatively durable cuticle, the shrimp discussed herein are characterized by having very thin cuticle that is readily deformed and oriented in a variety of positions. As a result, the description and interpretation of the morphology of the shrimp is, of necessity, a composite of several specimens; however, fine detail of many parts of the skeletal anatomy is exquisite."
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References: F. Wu, Y. Sun, G. Xu, W. Hao, D. Jiang and Z. Sun (2011) New Saurichthyid Actinopterygian Fishes from the Anisian (Middle Triassic) of Southwestern China. Acta Palaeontologica Polonica 56(3):581-614
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Anisaeger brevirostrus Schweitzer et al., 2014
oilshale posted a gallery image in Member Collections
From the album: Invertebrates
Anisaeger brevirostrus Schweitzer et al., 2014 Middle Triassic Anisian Luoping Yunnan PRC -
Taxonomy from Schweitzer et al. 2014. Quote (Schweitzer et al. 2014, p. 457): "Although the lobsters were interpreted as having relatively durable cuticle, the shrimp discussed herein are characterized by having very thin cuticle that is readily deformed and oriented in a variety of positions. As a result, the description and interpretation of the morphology of the shrimp is, of necessity, a composite of several specimens; however, fine detail of many parts of the skeletal anatomy is exquisite." Diagnosis from Schweitzer et al. 2014, p. 467: "Carapace longer than high; rostrum very long, 40 percent length of carapace, with one basal suprarostral spine and one subrostral spine at midlength; uropodal exopod with diaeresis; ventral lateral margins of telson with setal pits, appearing to extend entire length of telson; third maxilliped about as long as first and second pereiopods, with spine bases or setal pits along propodal and dactyl ventral margin; pereiopods 1– 3 chelate, third pereiopod longest, fourth and fifth longer than first and second, pereiopods without spines; pleopods apparently with multiarticulate flagellae." Identified by oilshale using Schweitzer et al. 2014. Characteristic is the extremely long rostrum, constituting 40 percent of the carapace length. References: SCHWEITZER, C., FELDMANN, R.,HU, S.,HUANG, J., ZHOU, C., ZHANG, Q.,WEN, W., Xie, T.(2014): PENAEOID DECAPODA (DENDROBRANCHIATA) FROM THE LUOPING BIOTA (MIDDLE TRIASSIC) OF CHINA: SYSTEMATICS AND TAPHONOMIC FRAMEWORK. Journal of Paleontology, 88(3), 2014, p. 457–474,
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From the album: Vertebrates
Sinosaurichthys longimedialis Wu et al., 2011 Middle Triassic Anisian Daaozi, Luoxiong Luoping yunnan PRC -
Taxonomy from Mindat.org. Diagnosis for the species by Tintori et al. 2010, p. 164: "Medium size, almost naked basal neopterygians with high fusiform body. Postero-ventral infraorbital much larger than the others; no suborbitals. Ventral surface of the parasphenoid and median surface of palatal bones totally covered by small teeth. Skull dermal bones with a ridged external surface, but with scarce ganoine covering. Vertebral column with no ossified or calcified centra. Autogeneous neural spines showing an enlarged leaf-like proximal end articulated to the corresponding enlarged distal area of paired neural arches. Short neural arches fused to the neural spines beginning from the end of the dorsal fin. Ossified ribs present, followed by haemal arches with a median spine at level of the insertion of the anal fin, Squamation constituted only by very small scales, arranged in a discontinuous row along the lateral line and in a single urodermal row on the dorsal body lobe of the hemiheterocercal tail. Last radial in both dorsal and anal fins supporting the last two or three lepidotricha. Median fins with very small scutes, several basal fulcra, very few and thin fringing fulcra. Size to at least 105 mm (S.L.); about 44 vertebral segments comprising the ural ones. All fins large and made by rather elongate lepidotrichia. Pectoral and pelvic fins made respectively by 13 and 8 lepidotrichia, dorsal and anal fin by 19 and 14 lepidotrichia. Caudal fin with 10 dorsal caudal fulcra, 3 dorsal unbranched, 17 segmented and branched, 3 ventral unbranched (at least two of them bearing few tiny fringing fulcra), 2-3 ventral caudal fulcra and 1-2 ventral scute. Dorsal body lobe with a single row of 12-13 urodermals, Cleithrum and postcleithrum ornamented by very low ridges with a dendritic pattern posteriorly directed." Line drawing from Tan & Jin 2013, p. 51: References: Tintori, A. et al. (2010): A NEW BASAL NEOPTERYGIAN FROM THE MIDDLE TRIASSIC OF LUOPING COUNTY (SOUTH CHINA). Rivista Italiana di Paleontologia Stratigrafia 2010, Vol. 116, No. 2, pp 162-171. Tan, K. und Jin, F. (2013): Re-study on Gymnoichthys inopinatus from Middle Triassic of Luoping, Yunnan, China. Vertebrata Palasiatica 2013, pp 1-8.
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From the album: Vertebrates
Gymnoichthys inopinatus Tintori et al., 2010 Middle Triassic Anisian Guangling Formation, Daaozi, Luoping, Yunnan PRC Length 10cm / 4" Re-study on Gymnoichthys inopinatus from Middle Triassic of Luoping Yunnan China.pdf A new basal neopterygian from the middle triassic of Luoping gymnoichthys.pdf -
Yunnanolimulus luopingensis Zhang, Hu, Zhou, Lu & Bai, 2009
oilshale posted a fossil in Other Arthropods
Taxonomy from Hu et al. 2017. Revised diagnosis from Hu et al. 2017, p. 3: "Prosoma gently vaulted, semi-circular in outline, wider than long, lateral sides parallel, distally continuous into two genal angles. Cardiac lobe about 3/5 width of prosoma, tapering gradually forward. Ophthalmic ridges distinct, not meeting in front of the cardiac lobe. Eyes are low. Genal spines triangular, posteriorly directed, forming an acute angle with anterolateral margin of opisthosoma. Opisthosoma subtriangular, non-segmented, slightly wider than cardiac lobe, tapering backward gradually. Hinge relatively straight. Axial region in opisthosoma distinct, with a width 1/3 that of the opisthosoma. Six pairs of movable spines present on both sides of opisthosoma. Telson long and sword-like in outline, triangular in cross-section, with length equal to the body." References: Zhang, Q. Y., Hu, S. X., Zhou, C. Y., Lv, T. & Bai, J. K. (2009) New occurrence of Xiphosura in China. Prog. Nat. Sci. 19, 1090–1093 (2009). Hu, S. X., Zhang, Q. Y., Feldmann, Rodney, Benton, Michael J., Schweitzer, Carrie E., Huang, J. Y., Wen W., Zhou, C. Y., Xie, T., Lü, T., & Hong, S. G. (2017) Exceptional appendage and softtissue preservation in a Middle Triassic horseshoe crab from SW China. Scientific Reports | 7: 14112 | DOI:10.1038/s41598-017-13319-x. -
Taxonomy from Fossilworks.org. Diagnosis from Wen et al. 2012. p. 152: "Middle−sized fishes, laterally compressed. The outline is triangular, with the apex of the triangle formed by a pointed “hump” in the dorsal region. Opercular series com− prising opercle, subopercle, interopercle, and preopercle; subopercular has long ramus anterior to opercular; suboper− cular a little less than half the size of the opercular; preopercular almost vertically oriented, with slender dorsal limb; three square−like suborbitals; at least eight branchiostegal rays with tubercles on the surface and comb−like ornament on their anterior margin; strong lower jaw has coronoid pro− cess; pointed grasping teeth in upper jaw, lower jaw, para− sphenoid and entopterygoid; articulation of jaw immediately below posterior margin of orbit; cleithrum is strong, with ridge ornament on surface of upper part; supracleithrum is large, nearly half the depth of the cleithrum, the lower end is somewhat pointed; two postcleithra lie behind the cleithrum; clavicle present; hemiheterocercal tail slightly forked; each radial supports one lepidotrichium in unpaired fins; all rays segmented from middle part and bifurcated distally; fringing fulcra on anterior margin of all fins; enlarged fulcra before anal fin and caudal fin; the whole body is covered with ganoid scales with tuberculate ornament; scales contact each other by peg−and−socket structure." Line drawing by Wen et al., p. 152: Identified by oilshale using Wen et al. 2002. References: W. Wen, Q. Y. Zhang, C. Y. Zhou, J. Y. Huang, Z. Q. Chen and M. J. Benton. (2012) A new genus of basal actinopterygian fish from the Anisian (Middle Triassic) of Luoping, Yunnan Province, Southwest China. Acta Palaeontologica Polonica 57:149-160. Sun, Z. Y. and Ni, P. G. (2017) Revision of Kyphosichthys grandei Xu & Wu, 2012 from the Middle Triassic of Yunnan Province, South China: implications for phylogenetic interrelationships of ginglymodian fishes. Journal of Systematic Palaeontology 16:67-85.
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Taxonomy from Mindat.org. Diagnosis for the species by Tintori et al. 2010, p. 164: "Medium size, almost naked basal neopterygians with high fusiform body. Postero-ventral infraorbital much larger than the others; no suborbitals. Ventral surface of the parasphenoid and median surface of palatal bones totally covered by small teeth. Skull dermal bones with a ridged external surface, but with scarce ganoine covering. Vertebral column with no ossified or calcified centra. Autogeneous neural spines showing an enlarged leaf-like proximal end articulated to the corresponding enlarged distal area of paired neural arches. Short neural arches fused to the neural spines beginning from the end of the dorsal fin. Ossified ribs present, followed by haemal arches with a median spine at level of the insertion of the anal fin, Squamation constituted only by very small scales, arranged in a discontinuous row along the lateral line and in a single urodermal row on the dorsal body lobe of the hemiheterocercal tail. Last radial in both dorsal and anal fins supporting the last two or three lepidotricha. Median fins with very small scutes, several basal fulcra, very few and thin fringing fulcra. Size to at least 105 mm (S.L.); about 44 vertebral segments comprising the ural ones. All fins large and made by rather elongate lepidotrichia. Pectoral and pelvic fins made respectively by 13 and 8 lepidotrichia, dorsal and anal fin by 19 and 14 lepidotrichia. Caudal fin with 10 dorsal caudal fulcra, 3 dorsal unbranched, 17 segmented and branched, 3 ventral unbranched (at least two of them bearing few tiny fringing fulcra), 2-3 ventral caudal fulcra and 1-2 ventral scute. Dorsal body lobe with a single row of 12-13 urodermals, Cleithrum and postcleithrum ornamented by very low ridges with a dendritic pattern posteriorly directed." Line drawing from Tan & Jin 2013, p. 51: References: Tintori, A. et al. (2010): A NEW BASAL NEOPTERYGIAN FROM THE MIDDLE TRIASSIC OF LUOPING COUNTY (SOUTH CHINA). Rivista Italiana di Paleontologia Stratigrafia 2010, Vol. 116, No. 2, pp 162-171. Tan, K. und Jin, F. (2013): Re-study on Gymnoichthys inopinatus from Middle Triassic of Luoping, Yunnan, China. Vertebrata Palasiatica 2013, pp 1-8.
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Taxonomy from Fossilworks.com. Diagnosis from Wen et al. 2013, p. 178: "Middle−sized coelacanth. Three diagnostic features are the expanded lachrymojugal, the notched dentary, the large semicircular coronoid, Skull roof has two pairs of parietals. Posterior margin of postparietals embayed. Lachrymojugal has an expanded posterior portion and a concave posteroventral margin. Squamosal has a slightly anterior expansion. Ventral surface of parasphenoid is covered by numerous granular teeth. Dentary has a deeply notched posterior border, and teeth distributed on the separated dentary plate. The first dorsal fin contains 12 robust segmented rays. The lower lobe of the caudal fin is larger than the upper lobe. The following combination of characters, a notched dentary and an expanded lachrymojugal, is not known in any other actinistian, so the Luoping materials must represent a new taxon." Line drawing from Wen et al., p. 183: Identified by oilshale. References: Wen, W. et al. (2013): Coelacanths from the Middle Triassic Luoping Biota, Yunnan, South China, with the earliest evidence of ovoviviparity. Acta Palaeontologica Polonica 58 (1): 175–193. Geng, B., Zhu, M. und Jin, F. (2009): A Revision and Phylogenetic Analysis of Guizhoucoelacanthus (Sarcopterygii, Actinistia) from the Triassic of China. Vertebrata PalAsiatica, 2009, Vol 47, 3, pp. 165-177.
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From the album: Vertebrates
Sinosaurichthys minuta WU et al, 2011 Middle Triassic Jialingjiang Formation Luoping Yunnan China
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