• Time slices: 57 (most 10 or 20 million years apart)
• Date range: 600 Ma to Present, including Late Pleistocene glacial paleogeography
• Resolution: 6000 x 3000 pixels (10 X 20 inches at 300 dpi)
• File formats: Photoshop® layered docs (5-6 layers/map) and JPG
• Layers include lat-long lines and country/continent outlines
• Three versions each time slice: (1) no lines, (2) lat-long lines, and (3) country/continent outlines
• Projections: Equal Rectangular, Mollweide (oval whole Earth), N and S Polar Orthographic (any orthographic orientation is possible from original rectangular projection)
• Also includes 17 time slices showing global tectonic elements projected as Mollweide and N and S Polar maps (51 maps total)
• 8 time slices with labeled plate/country boundaries
• Customization is available

For details on the series and to see map samples, click here.
For list of maps and information on projections and other lines, click here.

• Time slices: 25 (at 25 million year intervals)
• Date range: 600 MA to Present
• Resolution: 5700 x 4750 pixels
• File formats: Photoshop® layered docs (5-6 layers/map) and JPG
• Base map projection unspecified but is probably Lambert Azmuthal equal area
• Maps cover all of Europe, North Africa, and parts of North America
• Country boundaries and lat-long lines
• Includes 4 PowerPoint presentations with paleotectonic maps and overviews of general geologic history

For details on series, to see map samples and a list of maps, click here.

• Time Slices: 44
• Date Range: 540 Ma to Present plus 4 Precambrian maps
• Resolution: 4762 X 5956 pixels (~16 X 20 inches @ 300 dpi)
• File formats: Photoshop® layered docs (5-6 layers/map) and JPG
• Maps include coverage of the Arctic, Caribbean, Central America, parts of Western and Northern Europe, NW Africa, and Northern South America
• State and Province boundaries are shown. Paleo latitude lines are also shown. Map projection is Transverse Mercator with 100 degrees W as the central meridian (same projection used on GSA’s Geologic Map of North America). Each time slice includes a full-resolution JPG file and ~1/4 resolution JPG
• 2 terrane maps, 16 labeled plate-tectonic maps, and 15 facies maps (at least 1 per geologic period).
• 6 text files include map explanations and keys, construction information
• 16 pages of references – the sources of data used in constructing the maps.
• Time slices include at least two maps from each period (except Silurian), including 4 Jurassic, 6 Cretaceous and 8 Cenozoic with 1 glacial maximum map

For details on the series, to see map samples, and for a list of maps click here.

• Time Slices: 60 (many less than ½ million years apart)
• Date Range: Jurassic to Cretaceous
• Resolution: 2472 X 3342 pixels (~8 X 11 inches @ 300 dpi)
• File formats: Photoshop® layered docs (5-6 layers/map) and JPG
• 23 tectonic-facies-plate tectonic maps
• 8 chronostratigraphic cross sections
• Cretaceous depositional systems diagrams
• Extensive reference list and additional explanatory material
• Maps at same scale and resolution, and projection as Key Time-Slice Series but cropped to emphasize Western Interior and N. Gulf of Mexico
• Maps are keyed to the Western Interior key fossil index zones (mostly ammonite zones). Transgressive and regressive events clearly stand out.

For details on the series, to see map samples, and for a list of maps, click here.

• Time Slices: 80
• Date Range: 1700 Ma to Present, including detailed Pleistocene glacial map
• Resolution 4608 x 4320 pixels (~ 14 X 15 inches at 300 dpi)
• File formats: Photoshop® layered docs (5-6 layers/map) and JPG
• Our most detailed maps for the region covered
• Sed-tectonic maps for some time slices (this replaces Includes 32 sed tectonic maps)
• Maps cover most major formations of the region
• Individual river systems, deltas, dune fields, uplifts show on maps
• Covers California, Nevada, S. Oregon, S. Idaho, Wyoming, Utah, Colorado, New Mexico, Arizona, Western Great Plains, and Northern Mexico, Northwest Texas
• County and state lines shown

For details on the series, to see map samples, and for a list of maps, click here.

• Time slices: 22
• Date Range: 340 Ma to 245 Ma
• Resolution: 3637 x 2778 (12 x 9 @ 300 dpi)
• File formats: Photoshop® docs with 6-9 layers and JPG
• Our most detailed maps for the region covered
• Sedimentary facies and stratigraphic names included for each time slice
• See list of maps for time slices covered
• Covers all of Texas, New Mexico, and Oklahoma and parts of adjoining states
• County and state lines included
• Also includes list of references, key to sedimentary facies and depositional systems, and map of tectonic features

For details on the series, to see map samples, and for a list of maps, click here.

• Time slices 16
• Map Ages: 420 Ma, 380 Ma, 350 Ma, 320 Ma, 260 Ma, 240 Ma, 200 Ma, 170 Ma, 140 Ma, 130 Ma, 110 Ma, 90 Ma, 70 Ma, 50, Ma, 20 Ma, Present
• Resolution: 5691 x 4632
• Paleogeographic and paleotectonic maps for each time slice
• Each map is an orthographic view that is centered on the Canadian and Svalbard archipelagos
• Includes a list of references

To see map samples, click here.