La Meseta Fm Telm 5 (Eocene to of Antarctica)

Where: Seymour Island, Antarctica (64.3° S, 56.8° W: paleocoordinates 63.5° S, 63.0° W)

• coordinate stated in text

• basin-level geographic resolution

When: Telm 5 Member (La Meseta Formation), Ypresian to Ypresian (56.0 - 41.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: coastal; unlithified, gray, green, silty sandstone and poorly lithified, shelly/skeletal, conglomeratic sandstone

• rhythmic alternations of purple and gray-green laminated very fine grained sandstone, and silty clay with interbedded conglomeratic sandstone

•well-sorted fine grained sand with shell lenses, ripples, burrows, small-scale channels, slumps

•some concretions

Size class: macrofossils

Preservation: original aragonite, original calcite

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

Primary reference: J. D. Stilwell and W. J. Zinsmeister. 1992. Molluscan Systematics and Biostratigraphy. Antarctic Research Series, AGU 55 [L. Ivany/L. Ivany/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 63551: authorized by Linda Ivany, entered by Linda Ivany on 16.08.2006, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• Mollusks only
Aves
 Sphenisciformes -
Archaeospheniscus wimani Marples 1953 penguin
 Sphenisciformes - Spheniscidae
Palaeeudyptes gunnari Wiman 1905 penguin
 Sphenisciformes -
Delphinornis sp. Wiman 1905 penguin
Delphinornis larseni Wiman 1905 penguin
? Mesetaornis sp. Myrcha et al. 2002 penguin
Scaphopoda
 Gadilida - Gadilidae
Gastropoda
 Pseudomelanoidea - Pseudomelaniidae
 Sorbeoconcha - Naticidae
Eunaticina infrequens n. sp. moon snail
Polinices (Polinices) cf. subtenuis Ihering 1907 moon snail
 Sorbeoconcha - Ficidae
"Ficus (Diconoficus) austrinus n. sp." = Ficus, Austroficopsis wimani n. gen. n. sp., Austroficopsis seymourensis n. gen. n. sp.
"Ficus (Diconoficus) austrinus n. sp." = Ficus fig shell
Austroficopsis wimani n. gen. n. sp. Stilwell and Zinsmeister 1992 fig shell
Austroficopsis seymourensis n. gen. n. sp. Stilwell and Zinsmeister 1992 fig shell
 Neogastropoda - Turbinellidae
 Neogastropoda - Costellariidae
Conomitra cernohorskyi n. sp. ribbed mitre
Conomitra iredalei n. sp. ribbed mitre
Conomitra antarctolirata n. sp. ribbed mitre
Austrosullivania striata n. gen. n. sp. ribbed mitre
Austrosullivania lata n. gen. n. sp. ribbed mitre
 Neogastropoda - Cancellariidae
 Neogastropoda - Mitridae
"Mitra" thomsoni n. sp. mitre shell
Mitra (Eumitra) sadleri n. sp. mitre shell
 Neogastropoda - Fasciolariidae
 Neogastropoda - Buccinidae
Neptunea antarctocosta n. sp. true whelk
Austrobuccinum tuberosum n. gen. n. sp. Stilwell and Zinsmeister 1992 true whelk
Pareuthria hookeri n. sp. true whelk
Cyrtochetus (Cyrtochetus) bucciniformis Wilckens 1911 true whelk
Eobuccinella brucei n. gen. n. sp. Stilwell and Zinsmeister 1992 true whelk
Aeneator lawsi n. sp. true whelk
Aeneator huttoni n. sp. true whelk
Penion australocapax n. sp. true whelk
Zelandiella verrucosa n. sp. true whelk
 Neogastropoda - Nassariidae
Sudonassarius antarctohimaleos n. gen. n. sp. Stilwell and Zinsmeister 1992 snail
 Neogastropoda - Volutidae
Alcithoe (Alcithoe) amundseni n. sp. Stilwell and Zinsmeister 1992 volute
Pachymelon (Palomelon) suropsilos n. sp. Stilwell and Zinsmeister 1992 volute
Eoscaphella fordycei n. gen. n. sp. Stilwell and Zinsmeister 1992 volute
Eoscaphella ellioti n. gen. n. sp. Stilwell and Zinsmeister 1992 volute
 Neogastropoda - Muricidae
Xymene marincovichi n. sp. murex snail
 Neogastropoda - Tudiclidae
Tudiclana byrdi n. sp. snail
 Neogastropoda - Mangeliidae
 Neogastropoda - Raphitomidae
Austrotoma oliveroi n. sp. snail
 Neogastropoda - Turridae
 Neogastropoda - Drilliidae
 Neogastropoda - Borsoniidae
Zemacies finlayi n. sp. snail
 Sorbeoconcha - Struthiolariidae
Struthiolarella variabilis Wilckens 1911 snail
Struthiolarella steinmanni n. sp. Stilwell and Zinsmeister 1992 snail
 Heterostropha - Pyramidellidae
Gumina inflata n. sp., "Turbonilla (Ptycheulimella) cooki n. sp." = Ptycheulimella, "Turbonilla (Ptycheulimella) aersispira n. sp." = Ptycheulimella, Orinella (Orinella) poliosura n. sp., "Eulimella" lentiginosa n. sp., Agatha scotti n. sp.
Gumina inflata n. sp. snail
"Turbonilla (Ptycheulimella) cooki n. sp." = Ptycheulimella snail
"Turbonilla (Ptycheulimella) aersispira n. sp." = Ptycheulimella snail
Agatha scotti n. sp. snail
 Heterostropha - Acteonidae
 Ptenoglossa - Vasidae
Tudicla doylei n. sp. snail
 Opisthobranchia - Cylichnidae
Bivalvia
 Nuculanida - Nuculanidae
Australoportlandia antarctica Zinsmeister 1984 pointed nut clam
 Nuculanida - Malletiidae
Australoneilo rossi Zinsmeister 1984 clam
Neilo beui n. sp. Stilwell and Zinsmeister 1992 clam
 Nuculanida - Yoldiidae
Yoldiella leurovata n. sp. Stilwell and Zinsmeister 1992 clam
 Nuculida - Nuculidae
Nucula (Leionucula) nova Wickens 1911 nut clam
 Pholadida - Myidae
Mya (Geramya) ekelofi n. subgen. n. sp. Stilwell and Zinsmeister 1992 softshell clam
Mya (Arenomya) nucleoides Wilckens 1911 softshell clam
 Cardiida - Veneridae
Eumarcia (Atamarcia) robusta n. sp. Stilwell and Zinsmeister 1992 venus clam
Eumarcia (Eumarcia) austrolissa n. sp. Stilwell and Zinsmeister 1992 venus clam
"Cyclorismina" marwicki Zinsmeister 1984 venus clam
Eurhomalea carlosi venus clam
Eurhomalea antarctica Sharman and Newton 1897 venus clam
Eurhomalea inflata Zinsmeister 1984 venus clam
Eurhomalea newtoni Wilckens 1911 venus clam
Cockburnia lunulifera Wilckens 1911 venus clam
 Cardiida - Mactridae
Mactra irizari Wilckens 1912 clam
Mactra (Maorimactra) bodmani n. sp. Stilwell and Zinsmeister 1992 clam
Standella mystrosura n. sp. Stilwell and Zinsmeister 1992 clam
 Cardiida - Montacutidae
Mysella trigonoelliptica n. sp. Stilwell and Zinsmeister 1992 clam
 Cardiida - Tellinidae
Tellina (Tellinella) reflexa n. sp. Stilwell and Zinsmeister 1992 tellin clam
 Cardiida - Lahillidae
Lahillia wilckensi Zinsmeister 1984 clam
 Lucinida - Thyasiridae
Thyasira (Parathyasira) notosulca n. sp. Stilwell and Zinsmeister 1992 clam
Axinopsida pegodonta n. sp. Stilwell and Zinsmeister 1992 clam
 Lucinida - Lucinidae
Saxolucina sharmani Wilckens 1911 clam
 Carditida - Crassatellidae
Eucrassatella wilckensi Median and Rinaldi 1978 clam
 Mytilida - Mytilidae
 Pectinida - Pectinoidae
"Chlamys" sp. Röding 1798 scallop
 Ostreida - Ostreidae
Ostrea antarctica Zinsmeister 1984 oyster
 Arcida - Cucullaeidae