PBDB Collection

Longing Gap Radiolarians, K 20-1 (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• coordinate based on unpublished field data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 46962: 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
Entactinaria - Hexastylidae	? Hexastylus grahamensis ? Hexastylus grahamensis Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Entactinaria - Centrocubidae	? Octodendron superfragilis, ? Octodendron cf. superfragilis ? Octodendron superfragilis Kiessling 1999 radiolarian Author = Kiessling, n.sp. ? Octodendron cf. superfragilis Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Entactinaria - Eptingiidae	Perispyridium trifolium, Perispyridium serratum Perispyridium trifolium Kiessling 1999 radiolarian Author = Kiessling, n.sp. Perispyridium serratum Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Entactinaria - Saturnalidae	Acanthocircus yaoi, Acanthocircus dumitricai, Acanthocircus cf. minimus Acanthocircus yaoi Yang 1993 radiolarian Author = Yang Acanthocircus dumitricai Kiessling 1999 radiolarian Author = Kiessling, n.sp. Acanthocircus cf. minimus Squinabol 1914 radiolarian Author = (Squinabol)
Actinommacea - Xiphostylidae	Suna "sp. A", Suna echiodes, Tripocyclia crassa n. sp., Archaeocenosphaera cf. laseekensis, Triactoma tithonianum Suna "sp. A" Wu 1986 radiolarian Suna echiodes Foreman 1973 radiolarian ssp. concava, Author = Kiessling, n.ssp. Tripocyclia crassa n. sp. Kiessling 1999 radiolarian Author = Kiessling, n.sp. Archaeocenosphaera cf. laseekensis Pessagno et al. 1989 radiolarian Author = Pessagno and Yang Triactoma tithonianum Rüst 1885 radiolarian Author = Rüst
Nassellaria - Eucyrtiidae	Tetracapsa molengraaffi, Tetracapsa horokanaiensis Tetracapsa molengraaffi Tan Sin Hok 1927 radiolarian Author = (Tan Sin Hok) Tetracapsa horokanaiensis Kawabata 1988 radiolarian Author = (Kawabata)
Nassellaria - Pseudodictyomitridae	Loopus primitivus Loopus primitivus Matsuoka and Yao 1985 radiolarian Author = (Matsuoka and Yao)
Nassellaria - Eucyrtidiidae	? Stichocapsa "sp. A", Stichomitra "sp. B", Stichomitra "sp. C", Pseudoeucyrtis "sp. B", Pseudoeucyrtis "sp. C" ? Stichocapsa "sp. A" Haeckel 1881 radiolarian Stichomitra "sp. B" Cayeux 1897 radiolarian Stichomitra "sp. C" Cayeux 1897 radiolarian Pseudoeucyrtis "sp. B" Pessagno 1977 radiolarian Pseudoeucyrtis "sp. C" Pessagno 1977 radiolarian
Nassellaria - Syringocapsidae	Podocapsa "amphitreptera", Podocapsa amphitreptera, Podobursa aff. tricola, Podobursa aff. triacantha Podocapsa "amphitreptera" Foreman 1973 radiolarian Author = Foreman Podocapsa amphitreptera Foreman 1973 radiolarian ssp. foremanae, Author = Yang Podobursa aff. tricola Foreman 1973 radiolarian Author = Foreman Podobursa aff. triacantha Fischli 1916 radiolarian Author = (Fischli)
Nassellaria - Parvicingulidae	Tethysetta boesii, Parvicingula "sp. E", Parvicingula cf. blowi, Parvicingula colemani, Parvicingula aff. colemani, Parvicingula cf. elegans, Parvicingula judae, Parvicingula aff. excelsa, Parvicingula turrita, Parvicingula aff. turrita, Parvicingula cf. thomesensis, Caneta hsui, Praeparvicingula "sp. A", Praeparvicingula "sp. B", "Parvicingula aff. grantensis" = Praeparvicingula grantensis, Praeparvicingula vera, Praeparvicingula "rotunda", Praeparvicingula aff. rotunda Tethysetta boesii Parona 1890 radiolarian Author = (Parona) Parvicingula "sp. E" Pessagno 1977 radiolarian Parvicingula cf. blowi Pessagno 1977 radiolarian Author = Pessagno Parvicingula colemani Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Parvicingula aff. colemani Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Parvicingula cf. elegans Pessagno and Whalen 1982 radiolarian Author = Pessagno and Whalen Parvicingula judae Kiessling 1999 radiolarian Author = Kiessling, n.sp. Parvicingula aff. excelsa Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Parvicingula turrita Rüst 1898 radiolarian Author = (Rüst) Parvicingula aff. turrita Rüst 1898 radiolarian Author = (Rüst) Parvicingula cf. thomesensis Pessagno 1977 radiolarian Author = Pessagno Caneta hsui Pessagno 1977 radiolarian Author = (Pessagno) Praeparvicingula "sp. A" Pessagno et al. 1993 radiolarian Praeparvicingula "sp. B" Pessagno et al. 1993 radiolarian "Parvicingula aff. grantensis" = Praeparvicingula grantensis Pessagno and Whalen 1982 radiolarian Author = (Pessagno and Whalen) 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
Nassellaria - Williriedellidae	Zhamoidellum "sp. A", Zhamoidellum "sp. B", Williriedellum frequens, ? Tricolocapsa aff. campana Zhamoidellum "sp. A" Dumitrica 1970 radiolarian Zhamoidellum "sp. B" Dumitrica 1970 radiolarian Williriedellum frequens Tan Sin Hok 1927 radiolarian Author = (Tan Sin Hok) ? Tricolocapsa aff. campana Kiessling 1995 radiolarian Author = Kiessling
Nassellaria - Hsuidae	Hsuum "sp. A", Hsuum tamanense, Hsuum cf. cuestaense, Hsuum mclaughlini Hsuum "sp. A" Pessagno 1977 radiolarian Hsuum tamanense Yang 1993 radiolarian Author = Yang Hsuum cf. cuestaense Pessagno 1977 radiolarian Author = Pessagno Hsuum mclaughlini Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome
Nassellaria - Bagotidae	Droltus aff. laseekensis Droltus aff. laseekensis Pessagno and Whalen 1982 radiolarian Author = Pessagno and Whalen
Nassellaria - Ultranaporidae	Napora durhami, Napora pualensis, Napora aff. pyramidalis, Napora pacifica n. sp. Napora durhami Pessagno 1977 radiolarian Author = (Pessagno) Napora pualensis Blome 1984 radiolarian Author = (Blome) Napora aff. pyramidalis Baumgartner 1984 radiolarian Author = Baumgartner Napora pacifica n. sp. Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Nassellaria - Tripedurnulidae	? Tridentocyrtis "sp. A", Pseudopoulpus "sp. B", Pseudopoulpus spinosus ? Tridentocyrtis "sp. A" Steiger and Steiger 1994 radiolarian Pseudopoulpus "sp. B" Takemura 1986 radiolarian Pseudopoulpus spinosus Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Nassellaria -	? Windalia "sp. E" ? Windalia "sp. E" Ellis 1993 radiolarian
Spumellaria - Pantanelliidae	Vallupus hopsoni, Protovallupus excellens, Protovallupus difficilis, Gorgansium aff. morganense, Gorgansium steigeri, Pantanellium rarum, Pantanellium whalenae, Pantanellium cantuchapai, Pantanellium quintachillaense, Pantanellium formosum, Pantanellium ranchitoense, Pantanellium meraceibaense, "Cantalum" "sp. A" Vallupus hopsoni Pessagno and Blome 1984 radiolarian Author = Pessagno and Blome Protovallupus excellens Yang and Pessagno 1989 radiolarian Author = Yang and Pessagno Protovallupus difficilis Kiessling 1999 radiolarian Author = Kiessling, n.sp. Gorgansium aff. morganense Pessagno and Blome 1980 radiolarian Author = Pessagno and Blome Gorgansium steigeri Kiessling 1999 radiolarian Author = Kiessling, n.sp. Pantanellium rarum Hull 1997 radiolarian Author = Hull Pantanellium whalenae Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium cantuchapai Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium quintachillaense Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium formosum Yang 1993 radiolarian Author = Pessagno Pantanellium ranchitoense Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod Pantanellium meraceibaense Pessagno and MacLeod 1987 radiolarian Author = Pessagno and MacLeod "Cantalum" "sp. A" Pessagno et al. 1979 radiolarian
Spumellaria - Archaeospongoprunidae	Archaeospongoprunum aff. bipartitum Archaeospongoprunum aff. bipartitum Pessagno 1973 radiolarian Author = Pessagno
Spumellaria - Hagiastridae	Crucella mexicana, Crucella magna, ? Higumastra "sp. D", Higumastra devilsgapensis Crucella mexicana Yang 1993 radiolarian Author = Yang Crucella magna Blome 1984 radiolarian Author = (Blome) ? Higumastra "sp. D" Baumgartner 1980 radiolarian Higumastra devilsgapensis Pessagno et al. 1993 radiolarian Author = Pessagno, Blome and Hull
Spumellaria - Tritrabidae	Neoparonaella delicata Neoparonaella delicata Yang 1993 radiolarian Author = Yang
Spumellaria -	Plegmosphaera "sp. A", Plegmosphaera "sp. D" Plegmosphaera "sp. A" radiolarian Plegmosphaera "sp. D" radiolarian
Spumellaria - Parvivaccidae	Acastea diaphorogona, Acaeniotyle parva Acastea diaphorogona Foreman 1973 radiolarian Author = (Foreman) Acaeniotyle parva Yang 1993 radiolarian Author = Yang
Spumellaria - Pseudoaulophacidae	? Alievium "sp. C" ? Alievium "sp. C" Pessagno 1972 radiolarian
Spumellaria - Spongodiscidae	Spongotripus aff. pujanai, Stylospongia aff. longispina, Spongodiscus "sp. A", Spongodiscus "sp. B", Teichertus hypnoticus Spongotripus aff. pujanai Kiessling 1999 radiolarian Stylospongia aff. longispina radiolarian Author = (Rüst) Spongodiscus "sp. A" Ehrenberg 1854 radiolarian Spongodiscus "sp. B" Ehrenberg 1854 radiolarian Teichertus hypnoticus Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Spumellaria - Stylosphaeridae	Spongostylus "sp. B" Spongostylus "sp. B" Haeckel 1881 radiolarian
Spumellaria - Praeconocaryommidae	Praeconocaryomma "sp. C", ? Praeconocaryomma "sp. G" Praeconocaryomma "sp. C" Pessagno 1976 radiolarian ? Praeconocaryomma "sp. G" Pessagno 1976 radiolarian
Spumellaria - Orbiculiformidae	Orbiculiforma "sp. A", Orbiculiforma "sp. B", Orbiculiforma cf. iniqua, Orbiculiforma cf. vacaensis, Orbiculiforma mclaughlini, Spongostaurus "sp. B", Spongostaurus australis n. sp., "Orbiculiforma teres" = Orbiculiformella teres Orbiculiforma "sp. A" Pessagno 1973 radiolarian Orbiculiforma "sp. B" Pessagno 1973 radiolarian Orbiculiforma cf. iniqua Blome 1984 radiolarian Author = Blome Orbiculiforma cf. vacaensis Pessagno 1973 radiolarian Author = Pessagno Orbiculiforma mclaughlini Pessagno 1977 radiolarian Author = Pessagno Spongostaurus "sp. B" Haeckel 1882 radiolarian Spongostaurus australis n. sp. Kiessling 1999 radiolarian Author = Kiessling, n.sp. "Orbiculiforma teres" = Orbiculiformella teres Hull 1997 radiolarian Author = Hull
Spumellaria - Pyramispongiidae	? Pyramispongia "sp. A" ? Pyramispongia "sp. A" Pessagno 1973 radiolarian
Spumellaria -	Spongiomma "sp. B", Spongiomma "sp. D", Spongiomma "sp. E", Pseudoacanthosphaera "sp. A" Spongiomma "sp. B" Haeckel 1887 radiolarian Spongiomma "sp. D" Haeckel 1887 radiolarian Spongiomma "sp. E" Haeckel 1887 radiolarian Pseudoacanthosphaera "sp. A" O'Dogherty 1994 radiolarian
Spumellaria - Emiluviidae	? Emiluvia "sp. A", Emiluvia chica, Emiluvia lowercoonensis, ? Emiluvia aff. pessagnoi, Emiluvia aff. parvinodosa ? Emiluvia "sp. A" Foreman 1973 radiolarian Emiluvia chica Foreman 1973 radiolarian Author = Foreman Emiluvia lowercoonensis Pessagno et al. 1993 radiolarian ssp. polaris, Author = Kiessling, n.ssp. ? Emiluvia aff. pessagnoi Foreman 1973 radiolarian Author = Foreman Emiluvia aff. parvinodosa Kiessling 1999 radiolarian Author = Kiessling, n.sp.
Spumellaria - Angulobracchiidae	Paronaella "sp. A", Paronaella "sp. B", Paronaella aff. pristidentata, Paronaella obesa, Paronaella bandyi, Paronaella coalescenda, Paronaella aff. multifera, Angulobracchia cf. biordinalis, Angulobracchia purisimaensis Paronaella "sp. A" Pessagno 1971 radiolarian Paronaella "sp. B" Pessagno 1971 radiolarian Paronaella aff. pristidentata Baumgartner 1980 radiolarian Author = Baumgartner Paronaella obesa Pessagno 1977 radiolarian Author = (Pessagno) Paronaella bandyi Pessagno 1977 radiolarian Author = Pessagno Paronaella coalescenda Kiessling 1999 radiolarian Author = Kiessling, n.sp. Paronaella aff. multifera Yang 1993 radiolarian Author = Yang Angulobracchia cf. biordinalis Ozvoldova 1984 radiolarian Author = Ozvoldova Angulobracchia purisimaensis Pessagno 1977 radiolarian Author = (Pessagno)
Spumellaria - Patulibracchiidae	Homoeoparonaella elegans, Homoeoparonaella aff. gigantea Homoeoparonaella elegans Pessagno 1977 radiolarian s.s., Author = (Pessagno) and ssp. yangi, Author = Kiessling, n.ssp. Homoeoparonaella aff. gigantea Baumgartner 1980 radiolarian Author = Baumgartner [entered as Homoeoparonaella giganthea]
Radiolaria - Actinommidae	Acanthosphaera "sp. B", Actinomma "sp. A", Actinomma "sp. B", Actinomma verwirra, Actinomma frigida, Actinomma interessanta, Actinomma longinggapensis Acanthosphaera "sp. B" Ehrenberg 1859 radiolarian Actinomma "sp. A" Haeckel 1862 radiolarian Actinomma "sp. B" Haeckel 1862 radiolarian Actinomma verwirra Kiessling 1999 radiolarian Author = Kiessling, n.sp. Actinomma frigida Kiessling 1999 radiolarian Author = Kiessling, n.sp. Actinomma interessanta Kiessling 1999 radiolarian Author = Kiessling, n.sp. Actinomma longinggapensis Kiessling 1999 radiolarian Author = Kiessling, n.sp.