page_title: Coihaique Group
hierarchical_section_title: Coihaique Group
caption_attribution_description: English: Chilesaurus holotype cast.
context_page_description: The Coihaique Group is a group of geological formations in northwestern Patagonia. From top to bottom the formations that make the group are Apeleg, Katterfeld and Toqui. The contact between the formations of the group are diachronous with Katterfeld Formation interfingering with the formations on top and below it. The lower and upper boundaries of the group are unconformities formed by erosion. The older parts of Coihaique Group represent a marine transgression while the younger parts evidences a return to non-marine conditions.
context_section_description: The Coihaique Group is a group of geological formations in northwestern Patagonia. From top to bottom the formations that make the group are Apeleg, Katterfeld and Toqui. The contact between the formations of the group are diachronous with Katterfeld Formation interfingering with the formations on top and below it. The lower and upper boundaries of the group are unconformities formed by erosion. The older parts of Coihaique Group represent a marine transgression while the younger parts evidences a return to non-marine conditions.
caption: Toqui Formation with Chilesaurus fossils
exif: {"Image Make": "Canon", "Image Model": "Canon EOS 350D DIGITAL", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop Lightroom 5.7.1 (Windows)", "Image DateTime": "2016:04:21 22:22:14", "Image Artist": "unknown", "Image ExifOffset": "238", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "240", "Thumbnail YResolution": "240", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "816", "Thumbnail JPEGInterchangeFormatLength": "13550", "EXIF ExposureTime": "1/30", "EXIF FNumber": "7/2", "EXIF ExposureProgram": "Manual", "EXIF ISOSpeedRatings": "400", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2016:04:19 16:27:27", "EXIF DateTimeDigitized": "2016:04:19 16:27:27", "EXIF ShutterSpeedValue": "4906891/1000000", "EXIF ApertureValue": "361471/100000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "29/8", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "21", "EXIF FocalPlaneXResolution": "1248000/437", "EXIF FocalPlaneYResolution": "832000/291", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF CameraOwnerName": "unknown", "EXIF BodySerialNumber": "1430719037", "EXIF LensSpecification": "[18, 55, 0/0, 0/0]", "EXIF LensModel": "18.0-55.0 mm"}