PBDB Collection

Khulmu Nuur, Tonkhil area (Devonian of Mongolia)

Also known as Reef 3728

Where: Mongolia (46.3° N, 93.9° E: paleocoordinates 39.8° N, 22.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Khulmunuur Formation, Eifelian (393.3 - 387.7 Ma)

• lower part of the formation

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone and lithified sandstone

• small coral biostromes

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: T. T. Sharkova. 1981. Siluriiskiye i devonskiye tabulyaty Mongolii [Silurian and Devonian Tabulata of Mongolia]. Trudy Sovmestnaya Sovetsko-Mongolskaya Paleontologicheskaya Ekspeditisiya [Transactions of the Joint Soviet-Mongolian Paleontological Expedition] 14:5-104 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 79716: authorized by Wolfgang Kiessling, entered by Uta Merkel on 19.03.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Kuzbassocrinus cf. binidigitatus Kuzbassocrinus cf. binidigitatus
Trilobita
Phacopida - Phacopidae	Phacops altaicus Phacops altaicus trilobite
Brachiopoda
-	Brachiopoda indet. Brachiopoda indet. Cuvier 1805
Rhynchonellata
Spiriferida - Cyrtiidae	Eospirifer secans Eospirifer secans
Spiriferida - Delthyrididae	Howellella sp. Howellella sp. Kozlowski 1946
Crinoidea
Monobathrida - Hexacrinitidae	Hexacrinites aff. cauliculatus, Hexacrinites cf. karzevae Hexacrinites aff. cauliculatus Sea lily Hexacrinites cf. karzevae Sea lily
-	Pentagonocyclicus cf. astericus Pentagonocyclicus cf. astericus Sea lily
Anthozoa
Favositida - Favositidae	Pachyfavosites abnormis, Pachyfavosites alpenensis, Emmonsia emmonsi, Emmonsia taltiensis, Squameofavosites mixtus Pachyfavosites abnormis tabulate coral subsp. macroporosus Pachyfavosites alpenensis tabulate coral Emmonsia emmonsi tabulate coral Emmonsia taltiensis tabulate coral Squameofavosites mixtus tabulate coral
Favositida - Pachyporidae	Cladopora vermicularis, Gracilopora clara Cladopora vermicularis tabulate coral Gracilopora clara tabulate coral
Favositida - Alveolitidae	Tyrganolithes altaicus, Alveolites edwards, Alveolites distinctus, Alveolites (Alveolitella) praeclara, Crassialveolites abramovi Tyrganolithes altaicus tabulate coral Alveolites edwards tabulate coral Alveolites distinctus tabulate coral Alveolites (Alveolitella) praeclara tabulate coral Crassialveolites abramovi tabulate coral
Favositida - Coenitidae	Placocoenites medius Placocoenites medius tabulate coral
Stauriida - Ptenophyllidae	"Stenophyllum sp." = Acanthophyllum "Stenophyllum sp." = Acanthophyllum Dybowski 1873 horn coral
Stauriida - Amplexidae	Altaiophyllum mongolicum Altaiophyllum mongolicum horn coral
Stauriida - Zaphrentidae	Heliophyllum sp. Heliophyllum sp. Hall 1846 horn coral
Stauriida - Phillipsastreidae	"Pseudoacervularia altaica" = Phillipsastrea, Thamnophyllum aff. tabulatum, Sulcorphyllum tonchilum "Pseudoacervularia altaica" = Phillipsastrea horn coral Thamnophyllum aff. tabulatum horn coral Sulcorphyllum tonchilum horn coral
Stromatoporoidea
Stromatoporellida - Stromatoporellidae	Stromatoporella javorskyi, Stromatoporella ex gr. artyschtensis Stromatoporella javorskyi stromatoporoid sponge Stromatoporella ex gr. artyschtensis stromatoporoid sponge
Protopteridium
-	Protopteridium sp. Protopteridium sp. Krejci 1880
Hostinella
-	"Hostimella sp." = Hostinella "Hostimella sp." = Hostinella Barrande 1882