Cerro Mesa: Agrio Fm: Early Hauterivian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
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Echinoidea indet.
(Leske 1778)
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Crinoidea
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Crinoidea indet.
Miller 1821
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Leanza 1998 | |||||||||
| originally entered as "Crinoida indet." | ||||||||||
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Sabellida
- Serpulidae
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Serpulidae indet.
Rafinesque 1835
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Cephalopoda
- Ammonitida
- Neocomitidae
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Lyticoceras pseudoregale
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Leanza 1998 | |||||||||
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Pseudofavrella angulatiformis
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Leanza 1998 | |||||||||
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"Acanthodiscus" vaceki
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Leanza 1998 | |||||||||
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Acanthodiscus cf. radiatus
(Bruguiére 1792)
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Leanza 1998 | |||||||||
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Cephalopoda
- Ammonitida
- Holcodiscidae
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Holcoptychites neuquensis
(Douvillé 1910)
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Gastropoda
- Cerithiidae
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Cerithium cf. heeri
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Gastropoda
- Turritellidae
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Turritella aff. lineolata
Roemer 1841
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Gastropoda
- Naticidae
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Natica cf. bulimoides
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Gastropoda
- Tylostomatidae
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Tylostoma jaworskii
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Gastropoda
- Pleurotomariidae
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Pleurotomaria gerthi
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Gastropoda
- Heterostropha
- Acteonidae
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Acteon andinus
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Bivalvia
- Pectinida
- Pectinidae
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Pecten vacaensis
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Bivalvia
- Ostreida
- Pinnidae
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Pinna robinaldina
d'Orbigny 1844
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Leanza 1998 | |||||||||
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Bivalvia
- Ostreida
- Bakevelliidae
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Gervillaria alaeformis
(Sowerby 1819)
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Gervillia anceps
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Leanza 1998 | |||||||||
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Bivalvia
- Arcida
- Cucullaeidae
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Cucullaea gabrielis
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Bivalvia
- Mytilida
- Mytilidae
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Nodomytilus trigonimimus n. gen., n. sp.
Kauffman and Leanza 2004
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Bivalvia
- Pholadomyida
- Pholadomyidae
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Pholadomya gigantea
(Sowerby 1836)
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Bivalvia
- Hiatellida
- Hiatellidae
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Panopea dupiniana
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Panopea neocomiensis
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Bivalvia
- Cardiida
- Kalenteridae
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Myoconcha transatlantica
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Leanza 1998 | |||||||||
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Bivalvia
- Carditida
- Crassatellidae
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Ptychomya koeneni
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Bivalvia
- Carditida
- Astartidae
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Eriphyla argentina
Burckh and Weaver 1907
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Astarte elongata
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Bivalvia
- Trigoniida
- Megatrigoniidae
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Pterotrigonia (Rinetrigonia) coihuicoensis
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Leanza 1998 | |||||||||
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Bivalvia
- Trigoniida
- Myophorellidae
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Steinmanella (Transitrigonia) raimondii
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Steinmanella (Transitrigonia) transitoria
Steinmann 1881
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Steinmanella (Macrotrigonia) pehuenmapuensis
Leanza 1998
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Myophorella garatei
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Myophorella (Haidaia) volkheimeri
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Bivalvia
- Trigoniida
- Trigoniidae
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Trigonia weidmanni
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Trigonia aliexpandita
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Trigonia carinata
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Leanza 1998 | |||||||||
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Rutitrigonia kauffmani
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Leanza 1998 | |||||||||
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Pholadomya agrioensis
Weaver 1931
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Anthozoa
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Anthozoa indet.
Ehrenberg 1834
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Leanza 1998 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Neuquen | County: | Zapala Department |
| Coordinates: | 38.7° South, 69.9° West (view map) | ||||
| Paleocoordinates: | 38.2° South, 33.7° West | ||||
| Basis of coordinate: | stated in text |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Hauterivian | 10 m.y. bin: | Cretaceous 2 |
| Key time interval: | Early Hauterivian | ||
| Age range of interval: | 132.6 - 125.77 m.y. ago |
Lithology and environment
| Primary lithology: | lithified silty,calcareous sandstone |
| Secondary lithology: | gray,green "shale" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: fine to coarse-grained sandstones and siltstones with carbonate cement, interbedded with greenish-gray shales containing mostly reworked bivalves, gastropods .... Lenses of coquinoid limstones are also common | |
| Environment: | shoreface |
Taphonomy
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 47202 | ||
| Authorizer: | L. Ivany, M. Aberhan | Enterer: | P. Wall, S. Nurnberg |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2005-02-18 11:50:27 | Last modified: | 2007-02-03 21:18:52 |
| Access level: | the public | Released: | 2005-02-18 11:50:27 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 12627. | E.G. Kauffman and H.A. Leanza. 2004. A Remarkable New Genus of Mytilidae (Bivalvia) from the Lower Cretaceous of Southwestern Gondwanaland. Journal of Paleontology 78(6):1187-1191 [L. Ivany/P. Wall/P. Wall] |
Secondary references:
| 18541 | H. A. Leanza. 1998. A new species of Steinmanella Crickmay (Bivalvia-Trigonioida) from the Lower Cretaceous of the Neuquen Basin, Argentina. Revista Geologica de Chile 25(1):57-67 [M. Aberhan/S. Nurnberg/S. Nurnberg] |