Department of Francisco Morazan: Late Triassic - Early Jurassic, Honduras

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Equisetopsida - Araucariaceae
Brachyphyllum hondurense n. sp.
Polypodiopsida - Equisetales - Equisetaceae
Equisetum sp. Linnaeus 1753
Polypodiopsida - Gleicheniales - Matoniaceae
Piazopteris branneri (White 1913)
Bennettitales
Zamites sp. Brongniart 1828
see common names

Geography
Country:Honduras
Coordinates: 14.5° North, 87.1° West (view map)
Paleocoordinates:5.2° South, 50.9° West
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Triassic - Jurassic Epoch: Late Triassic - Early Jurassic
10 m.y. bin: Triassic 3-4 - Jurassic 1-3
*Period:Late/Upper Triassic - Early/Lower Jurassic
Key time interval: Late Triassic - Early Jurassic
Age range of interval: 237 - 174.7 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:El Plan
Stratigraphic resolution:group of beds
Stratigraphy comments: p.345 of ref: "the beds are not accurately dated, but the flora is indicative of Jurassic age", p.356 of ref: "our current mood is to suggest a compromising Middle Jurassic age, at least tentatively, until such time as more material becomes available"
Lithology and environment
Primary lithology: sandstone
Secondary lithology: "shale"
Includes fossils?Y
Includes fossils?Y
Environment:coastal indet.
Taphonomy
Modes of preservation:adpression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:selective quarrying,surface (float),surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:24794
Authorizer:A. Rees Enterer:D. Sunderlin
Modifier:A. Rees Research group:paleobotany
Created:2002-08-20 11:46:08 Last modified:2003-02-25 17:40:47
Access level:the public Released:2002-08-20 11:46:08
Creative Commons license:CC BY
Reference information

Primary reference:
6954.PGAP T. Delevoryas and S. C. Srivastava. 1981. Jurassic plants from the Department of Francisco Morazan, central Honduras. Review of Palaeobotany and Palynology 34:345-357 [A. Rees/D. Sunderlin/D. Sunderlin]