PBDB Collection

Longing Gap Radiolarians, K 27 (Jurassic of Antarctica)

Where: Antarctica (64.5° S, 59.0° W: paleocoordinates 54.9° S, 35.5° W)

• coordinate based on unpublished field data

• hand sample-level geographic resolution

When: Longing Member (Ameghino Formation), Early/Lower Tithonian (150.8 - 145.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified, concretionary, tuffaceous, black mudstone

• Anoxic conditions prevailed especially in the Longing Member; this is indicated by the often lacking bioturbation and rare horizons with benthonic fossils. In the Ameghino Member moderately intense bioturbation (Zoophycos, Chondrites, Planolites) and a consequent destruction of lamination indicate dysaerobic conditions. Doyle and Whitham (1991) attribute this environmental change to an uplift of the depositional environment above a permanent pyknocline. The submarine relief was very low and a simple hemipelagic sedimentation was dominant.

• Mudstone concretion with tuff layers

Size class: microfossils

Preservation: concretion

Collection methods: bulk, chemical, hydrochloric, sieve,

• Radiolarians only. Additional faunal elements are sponge spicules and very rare foraminifera.

Primary reference: W. Kiessling. 1999. Late Jurassic radiolarians from the Antarctic Peninsula. Micropaleontology 45(S1):1-96 [W. Kiessling/W. Kiessling]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 46965: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 27.01.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Protozoa
Actinommacea - Xiphostylidae	Tripocyclia triacuminata, Tripocyclia crassa, Suna echiodes, Triactoma hidalgoensis, Archaeocenosphaera ruesti Tripocyclia triacuminata radiolarian Author = (Lipman) Tripocyclia crassa Kiessling 1999 radiolarian Author = Kiessling, n.sp. Suna echiodes Foreman 1973 radiolarian ssp. concava, Author = Kiessling, n.ssp. Triactoma hidalgoensis Pessagno et al. 1989 radiolarian Author = Pessagno and Yang Archaeocenosphaera ruesti Pessagno et al. 1989 radiolarian Author = Pessagno and Yang
Nassellaria - Hsuidae	Hsuum tamanense, Hsuum mclaughlini Hsuum tamanense Yang 1993 radiolarian Author = Yang Hsuum mclaughlini Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome
Nassellaria - Archaeodictyomitridae	Archaeodictyomitra "sp. C", Mita "sp. A", Mita weddellensis Archaeodictyomitra "sp. C" Pessagno 1977 radiolarian Mita "sp. A" Pessagno 1977 radiolarian Mita weddellensis Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Nassellaria - Parvicingulidae	Caneta hsui, Tethysetta "boesii", ? Praeparvicingula proiecta, Praeparvicingula vera, Praeparvicingula "rotunda", Praeparvicingula aff. rotunda, Praeparvicingula holdsworthi, Parvicingula cf. elegans, Parvicingula judae n. sp., Parvicingula colemani, Parvicingula aff. colemani, Parvicingula jonesi, Parvicingula turrita, Parvicingula excelsa, Parvicingula aff. excelsa, Parvicingula cf. thomesensis Caneta hsui Pessagno 1977 radiolarian Author = (Pessagno) Tethysetta "boesii" Parona 1890 radiolarian Author = (Parona) ? Praeparvicingula proiecta Kiessling 1999 radiolarian Author = Kiessling, n.sp. Praeparvicingula vera Pessagno and Whalen 1982 radiolarian Author = (Pessagno and Whalen) Praeparvicingula "rotunda" Hull 1995 radiolarian Author = Hull Praeparvicingula aff. rotunda Hull 1995 radiolarian Author = Hull Praeparvicingula holdsworthi Yang 1993 radiolarian Author = (Yang) Parvicingula cf. elegans Pessagno and Whalen 1982 radiolarian Author = Pessagno and Whalen Parvicingula judae n. sp. Kiessling 1999 radiolarian Author = Kiessling, n.sp. Parvicingula colemani Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Parvicingula aff. colemani Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Parvicingula jonesi Pessagno 1977 radiolarian Author = Pessagno Parvicingula turrita Rüst 1898 radiolarian Author = (Rüst) Parvicingula excelsa Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Parvicingula aff. excelsa Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Parvicingula cf. thomesensis Pessagno 1977 radiolarian Author = Pessagno
Nassellaria - Syringocapsidae	Podobursa aff. tricola, Podobursa triacantha Podobursa aff. tricola Foreman 1973 radiolarian Author = Foreman Podobursa triacantha Fischli 1916 radiolarian ssp. polyacantha, Author = (Fischli)
Nassellaria - Eucyrtidiidae	Pseudoeucyrtis "sp. B", Stichomitra "sp. C", Stichomitra "sp. D" Pseudoeucyrtis "sp. B" Pessagno 1977 radiolarian Stichomitra "sp. C" Cayeux 1897 radiolarian Stichomitra "sp. D" Cayeux 1897 radiolarian
Nassellaria - Pseudodictyomitridae	Loopus primitivus Loopus primitivus Matsuoka and Yao 1985 radiolarian Author = (Matsuoka and Yao)
Nassellaria - Eucyrtiidae	Tetracapsa horokanaiensis, Tetracapsa molengraaffi Tetracapsa horokanaiensis Kawabata 1988 radiolarian Author = (Kawabata) Tetracapsa molengraaffi Tan Sin Hok 1927 radiolarian Author = (Tan Sin Hok)
Nassellaria - Ultranaporidae	Napora pualensis Napora pualensis Blome 1984 radiolarian Author = (Blome)
Nassellaria - Williriedellidae	Williriedellum frequens, Zhamoidellum "sp. B" Williriedellum frequens Tan Sin Hok 1927 radiolarian Author = (Tan Sin Hok) Zhamoidellum "sp. B" Dumitrica 1970 radiolarian
Nassellaria -	? Windalia "sp. C", ? Windalia "sp. E" ? Windalia "sp. C" Ellis 1993 radiolarian ? Windalia "sp. E" Ellis 1993 radiolarian
Entactinaria - Saturnalidae	Acanthocircus yaoi Acanthocircus yaoi Yang 1993 radiolarian Author = Yang
Entactinaria - Eptingiidae	Perispyridium serratum, Perispyridium trifolium Perispyridium serratum Kiessling 1999 radiolarian Author = Kiessling, n.sp. Perispyridium trifolium Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Entactinaria - Centrocubidae	? Octodendron "sp. B" ? Octodendron "sp. B" Haeckel 1887 radiolarian
Spumellaria - Angulobracchiidae	Paronaella coalescenda, Paronaella obesa Paronaella coalescenda Kiessling 1999 radiolarian Author = Kiessling, n.sp. Paronaella obesa Pessagno 1977 radiolarian Author = (Pessagno)
Spumellaria - Emiluviidae	Emiluvia lowercoonensis, Emiluvia parvinodosa Emiluvia lowercoonensis Pessagno et al. 1993 radiolarian ssp. polaris, Author = Kiessling, n.ssp. Emiluvia parvinodosa Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Spumellaria - Patulibracchiidae	Homoeoparonaella elegans, ? Halesium "sp. C" Homoeoparonaella elegans Pessagno 1977 radiolarian ssp. yangi, Author = Kiessling, n.ssp. ? Halesium "sp. C" Pessagno 1971 radiolarian
Spumellaria -	Plegmosphaera "sp. A" Plegmosphaera "sp. A" radiolarian
Spumellaria - Spongodiscidae	Spongodiscus "sp. A", Spongotripus aff. pujanai, Stylospongia aff. polygonata, Teichertus hypnoticus Spongodiscus "sp. A" Ehrenberg 1854 radiolarian Spongotripus aff. pujanai Kiessling 1999 radiolarian Stylospongia aff. polygonata radiolarian Author = (Campbell and Clark) Teichertus hypnoticus Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Spumellaria - Pantanelliidae	Pantanellium formosum, Pantanellium cantuchapai, Pantanellium whalenae, Pantanellium meraceibaense, Pantanellium quintachillaense, Pantanellium deflectum, Gorgansium steigeri, Bivallupus primigenius, Vallupus hopsoni, Neovallupus modestus Pantanellium formosum Yang 1993 radiolarian Author = Pessagno Pantanellium cantuchapai Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium whalenae Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium meraceibaense Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium quintachillaense Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium deflectum Yang 1993 radiolarian Author = Yang Gorgansium steigeri Kiessling 1999 radiolarian Author = Kiessling, n.sp. Bivallupus primigenius Yang and Pessagno 1989 radiolarian Author = Yang and Pessagno Vallupus hopsoni Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Neovallupus modestus Yang and Pessagno 1989 radiolarian Author = Yang and Pessagno
Spumellaria - Tritrabidae	Neoparonaella delicata Neoparonaella delicata Yang 1993 radiolarian Author = Yang
Spumellaria - Orbiculiformidae	Spongostaurus australis, ? Orbiculiforma "sp. C", ? Orbiculiforma hullae Spongostaurus australis Kiessling 1999 radiolarian Author = Kiessling, n.sp. ? Orbiculiforma "sp. C" Pessagno 1973 radiolarian ? Orbiculiforma hullae Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Spumellaria - Praeconocaryommidae	Praeconocaryomma "sp. A", Praeconocaryomma "sp. C", Praeconocaryomma "sp. F", ? Praeconocaryomma "sp. H" Praeconocaryomma "sp. A" Pessagno 1976 radiolarian Praeconocaryomma "sp. C" Pessagno 1976 radiolarian Praeconocaryomma "sp. F" Pessagno 1976 radiolarian ? Praeconocaryomma "sp. H" Pessagno 1976 radiolarian
Spumellaria - Orosphaeridae	Orosphaeridae indet. Orosphaeridae indet. Haeckel 1887 radiolarian
Spumellaria - Pyramispongiidae	? Pyramispongia "sp. A" ? Pyramispongia "sp. A" Pessagno 1973 radiolarian
Spumellaria - Archaeospongoprunidae	Archaeospongoprunum aff. bipartitum Archaeospongoprunum aff. bipartitum Pessagno 1973 radiolarian Author = Pessagno
Spumellaria -	Pseudoacanthosphaera "sp. B" Pseudoacanthosphaera "sp. B" O'Dogherty 1994 radiolarian
Spumellaria - Hagiastridae	Crucella mexicana, Higumastra devilsgapensis, Higumastra scassoi Crucella mexicana Yang 1993 radiolarian Author = Yang Higumastra devilsgapensis Pessagno et al. 1993 radiolarian Author = Pessagno, Blome and Hull Higumastra scassoi Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Radiolaria - Actinommidae	Actinomma interessanta, Actinomma verwirra, Actinomma frigida, Actinomma longinggapensis Actinomma interessanta Kiessling 1999 radiolarian Author = Kiessling, n.sp. Actinomma verwirra Kiessling 1999 radiolarian Author = Kiessling, n.sp. Actinomma frigida Kiessling 1999 radiolarian Author = Kiessling, n.sp. Actinomma longinggapensis Kiessling 1999 radiolarian Author = Kiessling, n.sp.