Maastrichtian chalk (Stevns Klint) fauna (Cretaceous of Denmark)

Also known as Maastrichtian chalk (Denmark) fauna

Where: Denmark (57.0° N, 9.7° E: paleocoordinates 49.2° N, 8.5° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Maastrichtian chalk Formation, Maastrichtian (72.1 - 66.0 Ma)

• Maastrichtian chalk, cut by hardground. Dated by overlying Danian Fish Clay (P0 foraminiferal zone). Further overlying units include Cerithium Limestone (P0-P1a foraminiferal zone)

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, hardground carbonate

• "terminal Maastrichtian chalk was characterized by low-carbonate bioherms with shallow interbiohermal basins.....Bioherms were generated by relatively dense coverage of bryozoans, acting as sediment traps for mainly planktonic coccolithic ooze. In the basins between the bioherms, coccolithic ooze and bryzoan debris dominated."
• "biohermal chalk", presence of reworked chalk pebbles in upper units indicates "early lithification" of Maastrichtian chalk.

Size class: macrofossils

Preservation: mold/impression, original aragonite, original calcite, original silica, replaced with calcite

Collection methods: bulk,

• Some bulk samples processed in the field, remeaning material processed in laboratory. Lab preparation involved "drying, weighing and hammering samples into small prieces. Each piece examined under microscope in search of molds."

Primary reference: C. Heinberg. 1999. Lower Danian bivalves, Stevns Klint, Denmark; continuity across the K/T boundary. Palaeogeography, Palaeoclimatology, Palaeoecology 154:87-106 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 35039: authorized by Austin Hendy, entered by Austin Hendy on 27.10.2003, edited by Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

• Very comprehensive list of bivalvia. Other groups known to exist, but not listed are foraminifera and echinoids.
unclassified
  -
Bivalvia
  -
Bivalvia "sp. B" Linnaeus 1758 clam
Bivalvia "sp. C" Linnaeus 1758 clam
Bivalvia "sp. D" Linnaeus 1758 clam
Bivalvia "sp. E" Linnaeus 1758 clam
Bivalvia "sp. F" Linnaeus 1758 clam
Bivalvia "sp. G" Linnaeus 1758 clam
Bivalvia "sp. H" Linnaeus 1758 clam
Bivalvia "sp. I" Linnaeus 1758 clam
Bivalvia "sp. J" Linnaeus 1758 clam
Bivalvia "sp. K" Linnaeus 1758 clam
Bivalvia "sp. L" Linnaeus 1758 clam
 Arcida - Arcidae
 Arcida - Noetiidae
 Arcida - Parallelodontidae
 Arcida - Limopsidae
 Pectinida - Entoliidae
Entolium membranaceum Nilsson 1827 scallop
Syncyclonema haggi Dhondt 1971 scallop
Syncyclonema nilsoni Goldfuss 1835 scallop
 Pectinida - Dimyidae
Atreta bohmi scallop
Atreta nilssoni Hagenow 1842 scallop
 Pectinida - Pectinoidae
Spondylus truncatus, "Spondylus dutempleanus" = Spondylus fimbriatus, Neithea sexcostata, "Spondylus latus" = Hinnites obliquus, "Microchlamys pulchellus" = Dhondtichlamys pulchellus, "Microchlamys subinflexus" = Dhondtichlamys, Merklinia variabilis, Lyropecten campaniensis, Lyriochlamys sp.
"Spondylus dutempleanus" = Spondylus fimbriatus Goldfuss 1835 scallop
Neithea sexcostata Woodward 1833 scallop
"Spondylus latus" = Hinnites obliquus Münster 1841 scallop
"Microchlamys pulchellus" = Dhondtichlamys pulchellus Nilsson 1827 scallop
"Microchlamys subinflexus" = Dhondtichlamys scallop
Merklinia variabilis Hagenow 1842 scallop
Lyropecten campaniensis Orbigny 1847 scallop
Lyriochlamys sp. Sobetski 1977 scallop
Listed as "Lyriaclamys cretosus" - mispelled?
 Pectinida - Limidae
 Pectinida - Anomiidae
Anomia pseudoradiata d'Orbigny 1850 jingle
 Pectinida - Oxytomidae
 Ostreida - Gryphaeidae
"Hyotissa semiplana" = Hyotissa semipiana, "Pycnodonte vesiculare" = Pycnodonte (Phygraea) vesiculare
"Hyotissa semiplana" = Hyotissa semipiana Sowerby 1825 oyster
"Pycnodonte vesiculare" = Pycnodonte (Phygraea) vesiculare Lamarck 1806 oyster
 Ostreida - Ostreidae
 Ostreida - Bakevelliidae
Tenuipteria sp. Stephenson 1955 oyster
Gervillia solenoidea Defrance 1820 oyster
 Ostreida - Pinnidae
Pinna ? decussata Goldfuss 1837 oyster
Listed as "Pinna decussata?"
 Mytilida - Mytilidae
Gregariella sp. Monterosato 1883 mussel
Dacrydium sp. Torell 1859 mussel
Brachidontes sp. Swainson 1840 mussel
Brachidontes lineatus mussel
Listed as "Limopsis sp. 1"
 Carditida - Astartidae
Freiastarte sp. Chavan 1952 clam
Astarte sp. Sowerby 1816 clam
Listed as "Astarte si. sp."....si=unknown notation, perhaps spelling error or partially deleted species name
 Carditida - Crassatellidae
"Uddenia" sp. Stephenson 1941 clam
 Carditida - Carditidae
Vetericardiella sp. Chavan 1969 clam
 Pholadida - Corbulidae
Corbulamella sp. Meek 1857 clam
 Pholadida - Pholadidae
Martesia sp. Sowerby 1824 clam
 Hippuritida - Monopleuridae
Gyropleura sp. Douvillé 1887 rudist
 Cardiida - Gastrochaenidae
Gastrochaena sp. Spengler 1783 clam
 Cardiida - Kalenteridae
Myoconcha sp. Sowerby 1824 clam
 Cardiida -
 Cardiida - Erycinidae
? Erycina sp. Lamarck 1805 clam
 Cardiida - Cardiidae
Protocardia sp. Beyrich 1845 cockle
Granocardium productum Sowerby 1832 cockle
 Hiatellida - Hiatellidae
Panopea sp. Menard 1807 clam
 Thraciida - Thraciidae
? Thracia sp. Blainville 1824 clam
 Poromyida - Verticordiidae
Verticordia sp. Sowerby 1844 clam
Euciroa "sp. A" Dall 1881 clam
 Poromyida - Poromyidae
Psilomya sp. Meek 1876 clam
 Poromyida - Cuspidariidae
 Pholadomyida - Pholadomyidae
Pholadomya sp. Sowerby 1823 clam
 Lucinida - Lucinidae
Loripes sp. Poli 1791 clam
Mutiella ? coarctata clam
Listed as "Mutiella coarctica(?)"
 Lucinida - Mactromyidae
? Unicardium sp. d'Orbigny 1850 clam
 Protobranchia - Tindariidae
 Protobranchia - Sareptidae
"Nucula aff. truncata" = Portlandia arctica Gray 1824 clam
 Protobranchia - Yoldiidae
"Yoldia" sp. Möller 1842 clam