PBDB Collection

Tikhvinskoe (PIN collection 4048) (Triassic of Russian Federation)

Where: Yaroslavl, Russian Federation (58.0° N, 39.0° E: paleocoordinates 30.9° N, 31.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Rybinsk Formation, Olenekian (251.2 - 247.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: delta plain; lithified siltstone

• Formed near the bank of a shallow water body of low salinity in a delta plain or a water body ("Parshinskoe Lake") that was brackish and connected in its western part with the open sea

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Primary reference: D. S. Aristov. 2003. Revision of the Family Tomiidae (Insecta: Grylloblattida). Paleontological Journal 37:31-38 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105043: authorized by Matthew Clapham, entered by Matthew Clapham on 14.02.2011, edited by Jonathan Tennant, Bethany Allen, Roy Plotnick and Joseph Flannery-Sutherland

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Osteichthyes
Dipnoi - Gnathorhizidae	Gnathorhiza lozovskii⁴, Gnathorhiza triassica⁴ Gnathorhiza lozovskii⁴ Minikh 1977 lungfish Gnathorhiza triassica⁴ Minikh 1977 lungfish
Amphibia
Temnospondyli -	Thoosuchus yakovlevi¹, Benthosuchus korobkovi³, Wetlugasaurus angustifrons⁴ Thoosuchus yakovlevi¹ Riabinin 1927 tetrapod AM F98271, WAM 96.8.1, skulls Benthosuchus korobkovi³ Ivakhnenko 1972 tetrapod Holotype: PIN 3200/1 Wetlugasaurus angustifrons⁴ Riabinin 1930 tetrapod
Temnospondyli - Benthosuchidae	Angusaurus cf. tsylmensis² Angusaurus cf. tsylmensis² Novikov et al. 1990 tetrapod SMNS 81782, almost complete skull
Osteichthyes
Palaeoniscoidea -	Palaeoniscoidea indet.⁴ Palaeoniscoidea indet.⁴
Saurichthyiformes - Saurichthyidae	Saurichthys obrutchevi⁴, Saurichthys eximius⁴, Saurichthys tertius⁴, Saurichthys proximus⁴ Saurichthys obrutchevi⁴ Minikh 1982 ray-finned fish Saurichthys eximius⁴ Minikh 1982 ray-finned fish Saurichthys tertius⁴ Minikh 1982 ray-finned fish Saurichthys proximus⁴ Minikh 1982 ray-finned fish
Insecta
Coleoptera - Schizocoleidae	Schizocoleus triassicus n. sp.⁷, "Palademosyne elongatum n. sp." = Pseudochrysomelites elongatus⁶, Pseudochrysomelites humeralis n. sp.⁷ Schizocoleus triassicus n. sp.⁷ Ponomarenko 2016 beetle PIN 4048/2 "Palademosyne elongatum n. sp." = Pseudochrysomelites elongatus⁶ Ponomarenko 2004 beetle PIN 4048/16 Pseudochrysomelites humeralis n. sp.⁷ Ponomarenko 2016 beetle PIN 4048/1
Reculida - Chaulioditidae	"Tomia sennikovi n. sp." = Chauliodites sennikovi "Tomia sennikovi n. sp." = Chauliodites sennikovi Aristov 2003 winged insect PIN 4048/11
Xiphosura
Xiphosurida - Limulidae	Limulitella volgensis⁵, Limulitella volgensis⁴ Limulitella volgensis⁵ Ponomarenko 1985 horseshoe crab Limulitella volgensis⁴ Ponomarenko 1985 horseshoe crab
Lycopodiopsida
Isoetales - Pleuromeiaceae	Pleuromeia rossica⁴ Pleuromeia rossica⁴ clubmoss

¹Damiani and Yates 2003; ²Fernández‑Coll et al. 2018; ³Novikov 2012; ⁴Novikov and Sennikov 1996; ⁵Ponomarenko 1985; ⁶Ponomarenko 2004; ⁷Ponomarenko 2016