PBDB Collection

Tajna Beds at S-D boundary sections in Dniestr Valley (Devonian to of Ukraine)

Where: Ukraine (49.1° N, 25.4° E)

• Paleocoordinates: 1.5° N, 20.4° W (Wright 2013)

• coordinate based on political unit

• local area-level geographic resolution

When: Tajna Beds Formation, Helderbergian to Helderbergian (419.2 - 410.8 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; dolomitic, argillaceous limestone and dolomitic, argillaceous marl

• Several rock types described: "A unit of limestone is overlain by a sequence of alternating calcareous-dolomite marls and dark fragmentary mudstones with large clayey limestone concretions grouped into distinct bands. (1.8 m) ...Fine-grained argillaceous limestones with bands of silty mudstones; alternating calcareous-dolomitic clayey marls and interbedded dolomitic argillaceous limestones and calcareous marls (8.1 m)...Interbedded limestones and marls (8.3 m)...Nodular limestones, dolomitic argillaceous marls, dolomitic limestones (6.2 m)...nodular limestones, biogenic limestones and marls (1.7 m)...marls and rare limestones (10.4 m)...Limestones with bands of marls and mudstones (1.3 m)...alternating marls and limestones (12.7 m)...rhythmic alternation of limestones and marls (7 m)..."

Collection methods: Several outcrops combined.

Primary reference: O. I. Nikiforova. 1977. Podolia. In A. Martinsson (ed.), The Silurian-Devonian boundary (IUGS Publication, Series A, Number 5) 52-64 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 13875: authorized by Michael Foote, entered by Michael Foote on 30.04.2002

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Risoceras podolicum, Spathagnathodus woschmidti, Spathagnathodus primus, Lanceomyhonia borealiformis Risoceras podolicum Spathagnathodus woschmidti Spathagnathodus primus Lanceomyhonia borealiformis
Anthozoa
Favositida - Favositidae	Pachyfavosites kozlowskii Pachyfavosites kozlowskii tabulate coral
Ostracoda
Palaeocopida - Richinidae	Richina biconica Richina biconica ostracod
Trilobita
-	Trilobita indet. Trilobita indet. Walch 1771 trilobite
Proetida - Proetidae	"Warburgella rugulosa" = Warburgella (Rugulites) rugulosa "Warburgella rugulosa" = Warburgella (Rugulites) rugulosa Alth 1874 trilobite
Phacopida - Acastidae	Acastella prima, Acastella heberti Acastella prima trilobite Acastella heberti Gosselet 1880 trilobite
Cephalopoda
Nautiloidea -	Nautiloidea indet. Nautiloidea indet. Agassiz 1847 nautiloid
Bivalvia
Ostreida - Pterineidae	Actinopteria migrans Actinopteria migrans oyster
-	"Pelecypoda indet." = Bivalvia "Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Bryozoa
-	Bryozoa indet. Bryozoa indet. Ehrenberg 1831
Stenolaemata
Trepostomata - Heterotrypidae	"Lioclema gloria" = Leioclema "Lioclema gloria" = Leioclema
Trepostomida - Stenoporidae	Eostenopora incrustans, Eostenopora helenae Eostenopora incrustans Eostenopora helenae
Tubuliporata - Reptariidae	Hernodia sp. Hernodia sp. Hall 1883
Brachiopoda
-	Brachiopoda indet. Brachiopoda indet. Cuvier 1805
Rhynchonellata
Atrypida - Septatrypidae	Septatrypa secreta Septatrypa secreta Kozlowski 1929
Atrypida - Lissatrypidae	"Lissatrypoidea leprosa" = Lissatrypa "Lissatrypoidea leprosa" = Lissatrypa
Atrypida - Atrypidae	Atrypa tajnensis Atrypa tajnensis
Spiriferida - Ambocoeliidae	Ambocoelia praecox Ambocoelia praecox
Spiriferida - Cyrtiidae	Eospirifer turjensis Eospirifer turjensis
Spiriferida - Delthyrididae	Howellella latisinuata, Howellella laeviplicata Howellella latisinuata Howellella laeviplicata
Athyridida - Athyrididae	"Protathyris infantile" = Pseudoprotathyris infantilis "Protathyris infantile" = Pseudoprotathyris infantilis Kozlowski 1929
Rhynchonellida - Hebetoechiidae	Lanceomyonia borealiformis, Sphaerirhynchia gibbosa Lanceomyonia borealiformis Sphaerirhynchia gibbosa [entered as Spherirhynchia gibbosa]
Protorthida - Skenidiidae	"Skenidium lewisi" = Scenidium lewisi "Skenidium lewisi" = Scenidium lewisi Davidson 1883
Orthida - Dalmanellidae	Isorthis crassiformis Isorthis crassiformis
Spiriferinida - Cyrtinidae	Cyrtina praecedens Cyrtina praecedens
Pentamerida - Clorindidae	Clorinda pseudolinguifera Clorinda pseudolinguifera
Strophomenata
Strophomenida - Amphistrophiidae	Mesodouvillina costatula Mesodouvillina costatula
Strophomenida - Rafinesquinidae	Glossoleptaena emarginata Glossoleptaena emarginata Barrande 1879
Strophomenida - Strophochonetidae	Strophochonetes stonishkiensis Strophochonetes stonishkiensis
Crinoidea
-	Crinoidea indet. Crinoidea indet. Miller 1821 Sea lily
Monobathrida - Scyphocrinitidae	"Scyphocrinites elegans" = Scyphocrinites, "Camarocrinus sp." = Scyphocrinites "Scyphocrinites elegans" = Scyphocrinites Sea lily "Camarocrinus sp." = Scyphocrinites Zenker 1833 Sea lily
Pisocrinida - Pisocrinidae	Pisocrinus ubaghsi Pisocrinus ubaghsi Sea lily
Graptolithina
-	Graptolithina indet. Graptolithina indet. graptolite
Pterobranchia
Graptoloidea - Monograptidae	Monograptus uniformis Monograptus uniformis Pribyl 1940 graptolite
Graptoloidea - Cryptograptidae	Linograptus sp. Linograptus sp. graptolite
Conodonta
-	Conodonta indet. Conodonta indet. Pander 1856 conodont
Ozarkodinida -	Ozarkodina ortuformis Ozarkodina ortuformis conodont