Nachtegaalstraat/Dorpstraat [Alden Biesen Sand, Borgloon Fm] (Oligocene of Belgium)

Where: Belgium (50.8° N, 5.3° E: paleocoordinates 50.2° N, 1.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Alden Biesen Sand Member (Borgloon Formation), Rupelian (33.9 - 28.1 Ma)

• STRATIGRAPHIC RELATIONS: From the Alden Biesen Sand Mbr of the Borgloon Fm, which overlies the Zelzate Fm, and is overlain by the Bilzen Fm. AGE: Rupelian; justification not provided. STRATIGRAPHIC POSITION: Composite list for the member at this section.

• member-level stratigraphic resolution

Environment/lithology: coastal; unlithified sandstone

• ENVIRONMENT: Shallow siliciclastic fauna.
• SPECIFIC LITHOLOGY: Sandstone. LITHIFICATION: Unlithified, on the basis of figured specimens.

Size classes: macrofossils, mesofossils

Collected by Marquet et al

Collection methods: surface (float), surface (in situ),

• COLLECTORS: Marquet, Karnekamp, Lenaerts, and Smith, in addition to historic collections: REPOSITORY: Institut Royal des Sciences naturelles de Belgique (IRSNB), and Nationaal Natuurhistorich Murseum Naturalis (NNM).

Primary reference: R. Marquet, J. Lenaerts, C. Karnekamp and R. Smith. 2008. The molluscan fauna of the Borgloon Formation in Belgium (Rupelian, Early Oligocene). Palaeontos 12:1-99 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 111366: authorized by Austin Hendy, entered by Austin Hendy on 23.06.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for mollusca. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
Ostracoda
 Platycopida - Cytherellidae
Gastropoda
 Heterostropha - Lymnaeidae
 Heterostropha - Planorbidae
 Heterostropha - Pyramidellidae
"Syrnola intumescens" = Syrnola (Puposyrnola) intumescens von Koenen 1891 snail
"Syrnola laevissima" = Syrnola (Puposyrnola) laevissima Bosquet 1859 snail
 Stylommatophora - Pupillidae
 Stylommatophora - Valloniidae
 Stylommatophora - Gastrocoptidae
Gastrocopta (Sinalbulina) sp. Wollaston 1878 slug
 Stylommatophora - Vertiginidae
Vertigo (Vertigo) "sp. 1" Müller 1773 slug
Vertigo (Vertigo) "sp. 2" Müller 1773 slug
 Neritoidea - Neritidae
 Cerithioidea - Potamididae
Potamides lamarcki Brongniart 1810 horn snail
Mesohalina cf. taschei Ludwig 1865 horn snail
Mesohalina margaritaceus Brocchi 1814 horn snail
SUBSPECIES: Mesohalina margaritaceus labyrinthus
Mesohalina brabantinus Glibert and de Heinzelin 1954 horn snail
 Cerithioidea - Cerithiidae
Cerithiidae indet. Fleming 1822 cerith snail
Bittium sublima cerith snail
Bittium sp. Gray 1847 cerith snail
 Cerithioidea - Scaliolidae
 Cerithioidea - Thiaridae
 Cerithioidea - Batillariidae
Granulolabium plicatum Bruguiére 1792 snail
 Neogastropoda - Nassariidae
Keepingia gossardii Nyst 1836 snail
 Neogastropoda - Mangeliidae
Mangelia costellaria Nyst 1836 snail
 Neogastropoda - Cancellariidae
Unitas cf. elongata Nyst 1843 snail
 Sorbeoconcha - Naticidae
 Sorbeoconcha - Stenothyridae
 Sorbeoconcha - Truncatellidae
 Sorbeoconcha - Elachisinidae
 Sorbeoconcha - Caecidae
 Sorbeoconcha - Hydrobiidae
Hydrobia sp. Hartmann 1821 snail
 Sorbeoconcha - Rissoidae
Turboella turbinata Lamarck 1804 snail
 Sorbeoconcha - Pomatiidae
 Opisthobranchia - Retusidae
Cylichnina coelata Deshayes 1862 snail
Bivalvia
 Mytilida - Mytilidae
Brachidontes sp. Swainson 1840 mussel
Aulacomya subfragilis d'Orbigny 1847 mussel
Modiolula pygmaea Philippi 1843 mussel
 Lucinida - Lucinidae
Callucina thierensi Hébert 1849 clam
Megaxinus striatula Nyst 1836 clam
Paralucinella undulata Lamarck 1806 clam
 Pholadida - Myidae
Sphenia angustata Sowerby 1826 softshell clam
 Pholadida - Corbulidae
"Lentidium nitidum" = Lentidium (Ajanssenium) nitidum, "Lentidium donaciforme" = Lentidium (Ajanssenium) donaciforme, "Corbula gibba" = Corbula (Varicorbula) gibba
"Lentidium nitidum" = Lentidium (Ajanssenium) nitidum Sowerby 1822 clam
"Lentidium donaciforme" = Lentidium (Ajanssenium) donaciforme Nyst 1836 clam
"Corbula gibba" = Corbula (Varicorbula) gibba Oliva 1792 clam
 Cardiida - Dreissenidae
Mytilopsis nystiana d'Orbigny 1847 clam
 Cardiida - Veneridae
Cordiopsis incrassata Nyst 1836 venus clam
 Cardiida - Corbiculidae
Polymesoda subarata Bronn 1837 clam
Cyrenorita neglecta Nsyt 1836 clam
 Cardiida - Cardiidae
Parvicardium nystianum d'Orbigny 1852 cockle
SUBSPECIES: Parvicardium nystianum tongricum
 Cardiida - Tellinidae
Angulus benedeni Nyst and Westendorp 1839 tellin clam
SUBSPECIES: Angulus benedeni nysti