Fossil Field Guide
Part 2
The Tree of Life is wide and varied with many branches leading through time to where we all stand now.
Early in the Permian we find Dimetrodon.
While it lived long before the dinosaurs, Dimetrodon was more closely related to mammals.
The purpose of Dimetrodon’s sail remains unknown. Some speculate it could be for courtship or regulation of body heat. Others suggest there was no sail, but individual spines.
In the end, Dimetradon was another victim of the Permian Extinction that gave way to true dinosaurs.
Ankylosaurus was Indy Anna’s favorite dinosaur.
This armored dinosaur lived beside Tyrannosaurus and Triceratops, in the late Cretaceus period more than 80 million years ago.
Ankylosaurus's most notable feature is the heavy bone club on the end of a short, stiff tail.
These clubs were a series of fused vertebra that created a built-in morning star. Bone injuries suggest the club was used in both defensive and ritual combat.
Ankylosaurus was likely a vegetarian protecting a giant digestive system with the thick armored plates covering the rest of that body.
Huge sinus cavities in the skull indicate this dinosaur was likely noisy at both ends.
Dilophosaurus is a most misrepresented dinosaur.
The name comes from the bony crest on the animal’s snout.
The animal is known from only a single full skeleton and several partial specimens.
One of the earliest known carnivorous dinosaurs, Dilophosaurus could grow to 23 feet long.
Three-toed Dinosaur footprints around the world have been attributed to Dilophosaurus, including Dinosaur State Park in Connecticut.
She was back on her quest by then, and very soon Indy Anna Bones would come across the most famous dinosaurs of all.
{"items":["29676dd5-866e-46af-94f3-1d3bfee558c0","e5d6fe8a-b523-4f2b-b06c-fdc2db81ea45","f1d62b8c-4bb7-47b5-8a64-7193d5abf889","162b98b1-a7ca-405f-ba36-bb3645eb0367","956a779c-2adb-4e08-9d27-b8a68f0275fb","3fa0f25c-8482-46b6-b7f9-2ed0a8044e9a","f4b88782-4ce8-489e-97a9-a5f9fa2f1009","f1ad766d-6946-409b-9bc3-0634c9666f7f","a117ad51-ee01-4a88-85b7-9267bef22a0a","1e4e7b38-d33c-447f-b849-64a623e74d9c","45ba5bc8-6ad9-4be2-bc67-fd71ec3b1e15","6dd37618-d70f-4e3a-917c-84c1413c8db0","03423909-88e0-4310-85ed-2b3a3aa5d029","03ae0519-94c7-4106-b32e-81f28ddf6cf0","3559027e-6464-43c0-9b0e-223ce9b107d2","81f0b8ce-131d-4b3e-83a8-208e28f8b9d8","22f864a1-c1c4-4104-bd91-52790ccba299"],"styles":{"groupSize":3,"showArrows":false,"cubeImages":false,"cubeType":"fill","cubeRatio":1,"isVertical":true,"gallerySize":585,"collageAmount":0.8,"collageDensity":1,"groupTypes":"1,2h,2v,3t,3b,3l,3r","oneRow":false,"imageMargin":4,"galleryMargin":0,"floatingImages":0,"chooseBestGroup":true,"smartCrop":false,"hasThumbnails":false,"enableScroll":true,"isGrid":false,"isSlider":false,"isColumns":false,"isSlideshow":false,"cropOnlyFill":false,"fixedColumns":0,"enableInfiniteScroll":true,"isRTL":false,"minItemSize":120,"rotatingGroupTypes":"","rotatingCubeRatio":"","gallerySliderImageRatio":1.7777777777777777,"numberOfImagesPerRow":3,"numberOfImagesPerCol":1,"groupsPerStrip":0,"borderRadius":0,"boxShadow":0,"gridStyle":0,"mobilePanorama":false,"placeGroupsLtr":false,"viewMode":"preview","thumbnailSpacings":0,"galleryThumbnailsAlignment":"bottom","isMasonry":false,"isAutoSlideshow":false,"slideshowLoop":false,"autoSlideshowInterval":4,"useCustomButton":false,"bottomInfoHeight":0,"titlePlacement":"SHOW_ON_HOVER","galleryHorizontalAlign":"center","galleryTextAlign":"center","galleryVerticalAlign":"center","scrollSnap":false,"itemClick":"expand","fullscreen":true,"allowSocial":false,"allowDownload":false,"allowTitle":false,"allowDescription":true,"loveButton":true,"loveCounter":true,"videoPlay":"hover","scrollAnimation":"NO_EFFECT","scrollDirection":0,"overlayAnimation":"NO_EFFECT","arrowsPosition":0,"arrowsSize":23,"watermarkOpacity":40,"watermarkSize":40,"useWatermark":true,"watermarkDock":{"top":"auto","left":"auto","right":0,"bottom":0,"transform":"translate3d(0,0,0)"},"loadMoreAmount":"all","defaultShowInfoExpand":1,"allowTitleExpand":true,"allowDescriptionExpand":true,"allowLinkExpand":true,"expandInfoPosition":0,"allowFullscreenExpand":true,"fullscreenLoop":false,"galleryAlignExpand":"left","addToCartBorderWidth":1,"addToCartButtonText":"","slideshowInfoSize":200,"playButtonForAutoSlideShow":false,"allowSlideshowCounter":false,"hoveringBehaviour":"APPEARS","thumbnailSize":120,"magicLayoutSeed":1,"imageHoverAnimation":"NO_EFFECT","calculateTextBoxHeightMode":"AUTOMATIC","textBoxHeight":0,"textImageSpace":10,"textBoxBorderRadius":0,"textBoxBorderWidth":0,"textsVerticalPadding":0,"textsHorizontalPadding":0,"titleDescriptionSpace":6,"customButtonText":"","customButtonBorderWidth":1,"customButtonBorderRadius":0,"loadMoreButtonText":"Load More","loadMoreButtonBorderWidth":1,"loadMoreButtonBorderRadius":0,"imageInfoType":"NO_BACKGROUND","itemBorderWidth":0,"itemBorderRadius":0,"itemEnableShadow":false,"itemShadowBlur":20,"itemShadowDirection":135,"itemShadowSize":10,"imageLoadingMode":"BLUR","expandAnimation":"NO_EFFECT","imageQuality":90,"usmToggle":false,"usm_a":0,"usm_r":0,"usm_t":0,"videoSound":false,"videoSpeed":1,"videoLoop":true,"gotStyleParams":true,"selectedLayout":"0|bottom|1|fill|true|0|true","showVideoPlayButton":true,"galleryImageRatio":2,"sharpParams":{"quality":90,"usm":{}},"imageLoadingWithColorMode":"PICKED_COLOR","imageRatioType":"FIXED","numberOfDisplayedItems":3,"itemBorderColor":{"themeName":"color_15","value":"rgba(255,255,255,1)"},"itemShadowOpacityAndColor":{"themeName":"color_15","value":"rgba(255,255,255,0.2)"},"textBoxBorderColor":"color-5","textBoxFillColor":"color-2","alwaysShowHover":false,"isStoreGallery":false,"previewHover":false,"galleryLayout":0,"itemOpacity":{"themeName":"color_14","value":"rgba(153,153,153,0.6)"},"itemFont":{"style":{"bold":false,"italic":false,"underline":false},"family":"jockey one","preset":"Heading-S","editorKey":"font_6","size":22,"fontStyleParam":true,"displayName":"Small Heading","value":"font:normal normal normal 22px/1.4em \"jockey one\",sans-serif;"},"itemFontSlideshow":{"family":"helvetica-w01-bold","displayName":"Basic Heading","style":{"bold":false,"italic":false,"underline":false},"size":22,"preset":"Custom","editorKey":"font_5","fontStyleParam":true,"value":"font:normal normal normal 22px/27px helvetica-w01-bold,helvetica-w02-bold,helvetica-lt-w10-bold,sans-serif;"},"itemDescriptionFontSlideshow":{"family":"helvetica-w01-light","displayName":"Paragraph 2","style":{"bold":false,"italic":false,"underline":false},"size":15,"preset":"Custom","editorKey":"font_8","fontStyleParam":true,"value":"font:normal normal normal 15px/18px helvetica-w01-light,helvetica-w02-light,sans-serif;"},"itemDescriptionFont":{"family":"helvetica-w01-light","displayName":"Paragraph 2","style":{"bold":false,"italic":false,"underline":false},"size":15,"preset":"Custom","editorKey":"font_8","fontStyleParam":true,"value":"font:normal normal normal 15px/18px helvetica-w01-light,helvetica-w02-light,sans-serif;"},"itemFontColor":{"themeName":"color_11","value":"rgba(0,0,0,1)"},"itemFontColorSlideshow":{"themeName":"color_15","value":"rgba(255,255,255,1)"},"itemDescriptionFontColor":{"themeName":"color_11","value":"rgba(0,0,0,1)"},"itemDescriptionFontColorSlideshow":{"themeName":"color_15","value":"rgba(255,255,255,1)"},"loadMoreButtonFont":{"family":"enriqueta","displayName":"Paragraph 2","style":{"bold":false,"italic":false,"underline":false},"size":14,"preset":"Body-M","editorKey":"font_8","fontStyleParam":true,"value":"font:normal normal normal 14px/1.4em enriqueta,serif;"},"loadMoreButtonFontColor":{"themeName":"color_15","value":"rgba(255,255,255,1)"},"loadMoreButtonColor":{"themeName":"color_11","value":"rgba(0,0,0,1)"},"loadMoreButtonBorderColor":{"themeName":"color_15","value":"rgba(255,255,255,1)"},"arrowsColor":{"themeName":"color_11","value":"rgba(0,0,0,1)"},"oneColorAnimationColor":{"themeName":"color_11","value":"rgba(0,0,0,1)"},"modifiedGallerySize":true,"isAccessible":false,"allowLeanGallery":false,"layoutsVersion":2,"selectedLayoutV2":0,"isSlideshowFont":false,"externalInfoHeight":0},"container":{"top":"","bottom":"","left":"","right":"","width":979,"height":1002,"position":"","avoidGallerySelfMeasure":true,"galleryWidth":987,"galleryHeight":1002,"scrollBase":0}}