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