Loma del Zorrillo: Early/Lower Bajocian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Mexiglossa varia
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Pelourdia sp.
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Pinopsida
- Cordaitanthales
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Noeggerathiopsis hislopii
(Bunbury 1878)
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| recombined as Cordaites hislopi | |||||||
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Bennettitales
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Anomozamites sp.
Schimper 1870
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Pterophyllum cf. munsteri
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Nilssonia ? morrisiana
(Oldham 1863)
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| original and current combination Pterophyllum morrisianum | |||||||
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Ptilophyllum sp.
Morris 1840
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Ptilophyllum cutchense
Morris 1840
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Ptilophyllum acutifolium
Morris 1840
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Williamsonia cuauhtemoci
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Williamsonia diquiyui
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Williamsonia huitzilopochtlii
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Williamsonia netzahualcoyotlii
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Williamsonia oaxacensis
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Cycadolepis mexicana
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Otozamites hespera
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Otozamites sp.
Braun 1843
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Zamites diquiyui
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Zamites feneonis
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Zamites lucerensis
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Zamites oaxacensis
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Zamites tribulosus
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Polypodiopsida
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Cladophlebis browniana
(Dunker 1846)
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Polypodiopsida
- Cyatheales
- Cyatheaceae
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Coniopteris arguta
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cf. Coniopteris hymenophylloides
(Brongniart 1828)
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| original and current combination Sphenopteris hymenophylloides | |||||||
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Polypodiopsida
- Equisetales
- Equisetaceae
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Equisetum rajmahalensis
(Oldham and Morris 1863)
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| recombined as Equisetum rajmahalense | |||||||
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Sphenopteridae
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Sphenopteris goeppertii
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Cycadopsida
- Cycadales
- Nilssoniaceae
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Pseudoctenis lanei
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Cycadopsida
- Cycadales
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Taeniopteris oaxacensis
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unclassified
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Perezlaria oaxacensis
Delevoryas and Gould 1971
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| see common names | |||||||
Geography
| Country: | Mexico | State/province: | Oaxaca |
| Coordinates: | 17.6° North, 97.6° West (view map) | ||
| Paleocoordinates: | 8.9° North, 47.5° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | local area |
Time
| Period: | Jurassic | Epoch: | Middle Jurassic |
| Stage: | Bajocian | 10 m.y. bin: | Jurassic 4 |
| *Period: | Middle Jurassic | *Local age/stage: | Early/Lower Bajocian |
| Key time interval: | Early/Lower Bajocian | ||
| Age range of interval: | 170.90000 - 168.60000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Zorrillo | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: covered by upper Bajocian and Bathonian marine deposits | |||||
Lithology and environment
| Primary lithology: | carbonaceous siltstone |
| Includes fossils? | Y |
Taphonomy
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | excellent |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: originally collected in Erben, 1956b, p. 26. | |
Metadata
| Database number: | 24729 | ||
| Authorizer: | A. Rees | Enterer: | D. Sunderlin |
| Modifier: | D. Sunderlin | Research group: | paleobotany |
| Created: | 2002-08-19 09:28:04 | Last modified: | 2002-08-19 12:28:06 |
| Access level: | the public | Released: | 2002-08-19 09:28:04 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6940. | PGAP | A. Silva-Pineda. 1978. Paleobotanica del Jurasico de Mexico. Universidad Nacional Autonoma de Mexico. Instituto de Geologia, Paleontologia Mexicana 44:1-16 [A. Rees/D. Sunderlin/D. Sunderlin] |