Apparently you can just do the following (credits to Projekt34 Your God):

Początkowo opublikowane przez Projekt34 Your God:

For anyone who doesn't take 100% completion just type:
GiveAllExplorerNotes

The game will freeze for a while but it will eventually unlock all notes.Achievement will prolly not pop up at the bottom right corner of your screen but press SHIFT+TAB and check your achievements it will be there.

https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=1231749824&tscn=1514071669
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=1275405975
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=1565395966

Before you start teleporting around you should prepare yourself a bit, here's a list of what you should have.
You can use the ghost cheat aswell but it might not work sometimes.

• cheat ghost
  
• cheat fly
  
• cheat leavemealone
  
• cheat god
  
• cheat GiveCreativeMode

Achatina - cheat setplayerpos 225600 206400 -11000
Allosaurus - cheat setplayerpos -312000 -271000 -35500
Ammonite - cheat setplayerpos 12000 300000 -13800
Angler - cheat setplayerpos -79200 -203200 -3100
Ankylosaurus - cheat setplayerpos -186400 -274600 -13500
Araneo - cheat setplayerpos -33600 -83200 -6900
Archaeopteryx - cheat setplayerpos -57600 -250600 -14200
Argentavis - cheat setplayerpos 31200 -226200 36100
Arthropleura - cheat setplayerpos 152800 -286400 -9900
Baryonyx - cheat setplayerpos 224800 -160200 -3100
Basilosaurus - cheat setplayerpos -258000 20000 -8800
Bee - cheat setplayerpos 88879 165599 -14200
Beelzebufo - cheat setplayerpos 251200 -281600 -14000
Brontosaurus - cheat setplayerpos -263200 -147200 -9000
Carbonemys - cheat setplayerpos -76800 -312800 -40000
Carnotaurus - cheat setplayerpos -72000 -133600 2100
Castoroides - cheat setplayerpos 174400 -199200 -13500
Chalicotherium - cheat setplayerpos -168800 -149600 -50
Cnidaria - cheat setplayerpos 253600 -1800 -26600
Coelacanth - cheat setplayerpos -800 -104000 -2100
Compsognathus - cheat setplayerpos -6399 -70400 3500
Daeodon - cheat setplayerpos 24000 304800 -13300
Dilophosaurus - cheat setplayerpos -317600 274400 -39000
Dimetrodon - cheat setplayerpos 193600 -172000 -12300
Dimorphodon - cheat setplayerpos 164800 -187200 -11800
Diplocaulus - cheat setplayerpos 260800 -179200 -8200
Diplodocus - cheat setplayerpos -292000 -199200 -7200
Direbear - cheat setplayerpos 270400 -76800 -8800
Direwolf - cheat setplayerpos -233600 -60000 -11400
Dodo - cheat setplayerpos -228800 53600 -1600
Doedicurus - cheat setplayerpos -180000 -24000 -5700
DungBeetle - cheat setplayerpos 279000 -268000 -12700
Dunkleosteus - cheat setplayerpos 41600 -48100 -12900
Electrophorus - cheat setplayerpos 251200 -108300 7900
Equus - cheat setplayerpos -132800 108800 -8200
Eurypterid - cheat setplayerpos -8000 -47200 -9000
Gallimimus - cheat setplayerpos 98400 -35200 -12100
Giganotosaurus - cheat setplayerpos 131200 -48000 -6600
Gigantopithecus - cheat setplayerpos -211500 -187200 24000
Hesperornis - cheat setplayerpos 272166 253132 -14000
Hyaenodon - cheat setplayerpos 255200 247200 -14100
Ichthyornis - cheat setplayerpos 116100 182300 -12600
Ichthyosaurus - cheat setplayerpos 238400 24200 -13500
Iguanodon - cheat setplayerpos -202400 99200 -13700
Kairuku - cheat setplayerpos 236800 -60000 -7900
Kaprosuchus - cheat setplayerpos 15200 263200 -23000
Kentrosaurus - cheat setplayerpos -211200 226000 -12000
Leech - cheat setplayerpos 28000 282400 -24400
Leedsichthys - cheat setplayerpos -212000 264800 -10600
Liopleurodon - cheat setplayerpos -204800 225600 -13400
Lystrosaurus - cheat setplayerpos 74400 149800 -21700
Mammoth - cheat setplayerpos 79000 170500 -27000
Manta - cheat setplayerpos 289000 151000 -24400
Megalania - cheat setplayerpos 273100 275700 -11600
Megaloceros - cheat setplayerpos 284800 139000 -24900
Megalodon - cheat setplayerpos -21900 -72200 -2900 - Ghost it!
Megalosaurus - cheat setplayerpos 272800 -267200 -25500
Meganeura - cheat setplayerpos -68800 34400 -12400
Megapiranha - cheat setplayerpos 140800 144800 -11500
Megatherium - cheat setplayerpos -228800 200000 -9500
Mesopithecus - cheat setplayerpos 275200 -271000 -25500
Microraptor - cheat setplayerpos -227200 -12000 -8100
Mosasaurus - cheat setplayerpos 276000 -268800 -21500
Moschops - cheat setplayerpos -260800 114400 -11300
Onyc - cheat setplayerpos -242400 131200 -4200
Otter - cheat setplayerpos 72800 -114400 25100
Oviraptor - cheat setplayerpos -215200 71200 -9100
Ovis - cheat setplayerpos 192800 186400 -11500
Pachycephalosaurus - cheat setplayerpos -73600 124000 -8500
Pachyrhinosaurus - cheat setplayerpos -234400 220800 -10000
Paraceratherium - cheat setplayerpos -148800 120500 -11500
Parasaur - cheat setplayerpos -143200 172000 -12200
Pegomastax - cheat setplayerpos 103200 257600 -9900
Pelagornis - cheat setplayerpos -22400 170400 -8200
Phiomia - cheat setplayerpos 30700 180000 -13500
Plesiosaur - cheat setplayerpos 76000 147200 -10600
Procoptodon - cheat setplayerpos 225600 178400 -8600
Pteranodon - cheat setplayerpos 214400 135200 -7700
Pulmonoscorpius - cheat setplayerpos 95300 245200 -10700
Purlovia - cheat setplayerpos -120800 -107200 4300
Quetzalcoatlus - cheat setplayerpos -213600 299200 -13800
Raptor - cheat setplayerpos -200000 294000 -7600
Sabertooth - cheat setplayerpos -191200 216800 -13800
Sabertooth Salmon - cheat setplayerpos 20000 300000 -13200
Sarcosuchus - cheat setplayerpos -56800 223200 -11000
Spinosaurus - cheat setplayerpos 238400 205600 -9900
Stegosaurus - cheat setplayerpos 232800 226400 -14100
Tapejara - cheat setplayerpos -78000 98400 -10600
Terror Bird - cheat setplayerpos -72800 97600 -10800
Therizinosaurus - cheat setplayerpos -11700 140400 -14200
Thylacoleo - cheat setplayerpos 129600 -140800 -6300
Titanoboa - cheat setplayerpos 336000 -111200 -44000
Titanomyrma - cheat setplayerpos -311200 -5600 -41600
Titanosaur - cheat setplayerpos -74400 94400 -10900
Triceratops - cheat setplayerpos 328000 299200 -43500
Trilobite - cheat setplayerpos -226400 -309600 -40000
Troodon - cheat setplayerpos 230400 200100 -10400
Tusoteuthis - cheat setplayerpos -229200 79700 -23800
Tyrannosaurus - cheat setplayerpos 340000 24800 -44400
Woolly Rhino - cheat setplayerpos -142200 233000 -11300
Yutyrannus - cheat setplayerpos -211200 191400 -5800

Note #1 - cheat setplayerpos 327200 -332000 -43000
Note #2 - cheat setplayerpos 172000 333600 -43600
Note #3 - cheat setplayerpos -109600 327200 -43400
Note #4 - cheat setplayerpos -295200 324800 -44300
Note #5 - cheat setplayerpos -42400 253000 -10400
Note #6 - cheat setplayerpos 211200 218000 -13100
Note #7 - cheat setplayerpos -178400 230400 -12800
Note #8 - cheat setplayerpos 252000 89600 -11600
Note #9 - cheat setplayerpos 233600 -5500 -17200
Note #10 - cheat setplayerpos 72000 19200 -9500
Note #11 - cheat setplayerpos 91200 158000 -23000
Note #12 - cheat setplayerpos 16800 272800 -24300
Note #13 - cheat setplayerpos -178500 41500 -11100
Note #14 - cheat setplayerpos 103000 -189200 -9900
Note #15 - cheat setplayerpos 48800 -127200 7300
Note #16 - cheat setplayerpos -191000 -74300 5900
Note #17 - cheat setplayerpos 218400 214400 -12200
Note #18 - cheat setplayerpos 165620 212800 -12500
Note #19 - cheat setplayerpos -43200 -199200 -3800
Note #20 - cheat setplayerpos -800 -246800 10300
Note #21 - cheat setplayerpos -5600 -299200 -14200
Note #22 - cheat setplayerpos 87200 -200800 -800
Note #23 - cheat setplayerpos 122400 -208800 -13400
Note #24 - cheat setplayerpos -214400 -168800 11500
Note #25 - cheat setplayerpos -220800 -110400 -8200
Note #26 - cheat setplayerpos 51200 -178400 1400
Note #27 - cheat setplayerpos -195200 -192200 33800
Note #28 - cheat setplayerpos -212800 -221600 10000
Note #29 - cheat setplayerpos 249600 -269600 -13800
Note #30 - cheat setplayerpos 216800 -247200 -115500

Record #1 - cheat setplayerpos 184800 -197600 -14200
Record #2 - cheat setplayerpos -201600 265600 -4900
Record #3 - cheat setplayerpos -289500 38900 -14100
Record #4 - cheat setplayerpos 287200 -287200 -14100
Record #5 - cheat setplayerpos 153600 -230000 -13000
Record #6 - cheat setplayerpos 269600 -28800 -43000
Record #7 - cheat setplayerpos 251200 -47200 -5800
Record #8 - cheat setplayerpos -127200 116000 -10400
Record #9 - cheat setplayerpos -271300 93600 -26800
Record #10 - cheat setplayerpos 172000 205600 -13800
Record #11 - cheat setplayerpos 136800 240000 -12200
Record #12 - cheat setplayerpos 10400 260800 -12000
Record #13 - cheat setplayerpos 92300 113000 -7000
Record #14 - cheat setplayerpos -8000 68800 5500
Record #15 - cheat setplayerpos -144000 161200 -14200
Record #16 - cheat setplayerpos -201600 156000 -13400
Record #17 - cheat setplayerpos -18400 -73600 -3600
Record #18 - cheat setplayerpos 288800 149600 -24400
Record #19 - cheat setplayerpos -178000 270400 -11900
Record #20 - cheat setplayerpos -186400 291200 -12900
Record #21 - cheat setplayerpos -147000 216800 -11500
Record #22 - cheat setplayerpos -26400 208000 2600
Record #23 - cheat setplayerpos 192000 204000 -12000
Record #24 - cheat setplayerpos 144800 212000 -12000
Record #25 - cheat setplayerpos 124800 199999 -12500
Record #26 - cheat setplayerpos 204000 206400 -12500
Record #27 - cheat setplayerpos 287200 -239200 -14100
Record #28 - cheat setplayerpos -22000 226300 -8100
Record #29 - cheatsetplayerpos 204800 -286700 -115200

Note #1 - cheat setplayerpos -248800 -200000 1000
Note #2 - cheat setplayerpos -234400 -278400 -14200
Note #3 - cheat setplayerpos 20000 -273600 1700
Note #4 - cheat setplayerpos -159200 -241600 -2000
Note #5 - cheat setplayerpos -268800 -187000 -8700
Note #6 - cheat setplayerpos -168000 -265400 -9300
Note #7 - cheat setplayerpos -160000 -229600 11200
Note #8 - cheat setplayerpos -271200 -140000 -14100
Note #9 - cheat setplayerpos 252500 -22100 -17800
Note #10 - cheat setplayerpos -48800 -181600 -2900
Note #11 - cheat setplayerpos -74000 -236500 -9100
Note #12 - cheat setplayerpos 36000 -297600 -14000
Note #13 - cheat setplayerpos -72800 -229600 -9000
Note #14 - cheat setplayerpos 25600 -277600 200
Note #15 - cheat setplayerpos -82000 -185620 -1500
Note #16 - cheat setplayerpos -165100 -125000 2400
Note #17 - cheat setplayerpos -128400 -176100 4200
Note #18 - cheat setplayerpos 13300 -187500 11200
Note #19 - cheat setplayerpos -47200 -88000 13300
Note #20 - cheat setplayerpos 168800 -86700 -11500
Note #21 - cheat setplayerpos 186400 -140800 -9800
Note #22 - cheat setplayerpos 259200 -159200 -1000
Note #23 - cheat setplayerpos 230000 -78600 -8100
Note #24 - cheat setplayerpos -213600 4000 -5800
Note #25 - cheat setplayerpos -216000 -59200 -4000
Note #26 - cheat setplayerpos -260800 19200 -11000
Note #27 - cheat setplayerpos -322483 -223172 -14338
Note #28 - cheat setplayerpos -97604 -212374 -5071
Note #29 - cheat setplayerpos -96259 -254280 -10246
Note #30 - cheat setplayerpos -75430 -80437 28034
Note #31 - cheat setplayerpos 191200 -293600 -115200

Note #1 - cheat setplayerpos 148000 -220800 -12800
Note #2 - cheat setplayerpos 224800 -114400 12300
Note #3 - cheat setplayerpos -204000 -84000 6300
Note #4 - cheat setplayerpos 144000 -70400 -11000
Note #5 - cheat setplayerpos -148000 -36800 800
Note #6 - cheat setplayerpos 232000 -4800 -9100
Note #7 - cheat setplayerpos 87200 -17500 -12000
Note #8 - cheat setplayerpos -7200 20000 -6000
Note #9 - cheat setplayerpos -241602 65600 -26800
Note #10 - cheat setplayerpos 36800 11200 -8900
Note #11 - cheat setplayerpos -183200 261200 -12600
Note #12 - cheat setplayerpos -269500 219200 -10400
Note #13 - cheat setplayerpos 276800 157000 -9600
Note #14 - cheat setplayerpos 73600 178400 -13900
Note #15 - cheat setplayerpos -237600 96800 -11000
Note #16 - cheat setplayerpos 222400 29600 -12400
Note #17 - cheat setplayerpos 154400 -53600 -10400
Note #18 - cheat setplayerpos -142301 63001 -11700
Note #19 - cheat setplayerpos -152000 -52800 -100
Note #20 - cheat setplayerpos -92000 4800 -9900
Note #21 - cheat setplayerpos 166400 38400 -3500
Note #22 - cheat setplayerpos 88000 -51200 -6900
Note #23 - cheat setplayerpos 147200 -37000 -9500
Note #24 - cheat setplayerpos 216000 -47300 -2900
Note #25 - cheat setplayerpos 207200 41600 -5500
Note #26 - cheat setplayerpos -259200 190400 -8000
Note #27 - cheat setplayerpos 8800 49600 8000
Note #28 - cheat setplayerpos -20000 -16800 -12600
Note #29 - cheat setplayerpos 63900 169300 -14100
Note #30 - cheat setplayerpos -87200 -55200 33600

admincheat summon spiderL_character_bp_c

admincheat summon gorilla_character_bp_c

admincheat summon dragon_character_bp_boss_c

Unfortunately you can't spawn this boss in and kill it, you have to complete the Tek Cave instead.
Once you got teleported into the special room and the Overseer has spawned, spawn a Giganotosaurus in.

admincheat setplayerpos -87200 -55200 33600

Beating the bosses in the right arena isn't needed for the achivements.
If you still want to get to one of these, here's a list with teleport commands.

Broodmother - admincheat setplayerpos 233000 35000 -102300
Megapithecus - admincheat setplayerpos -195200 -196800 -119300
Dragon - admincheat setplayerpos 233000 35000 -102300
Tek Cave (Overseer) - admincheat setplayerpos -87200 -55200 33600

#1 X 22592 Y -210798 Z -116323
#4 X 232302 Y -110532 Z 11489
#7 X 83686 Y 205037 Z -10935
#10 X -210731 Y -45226 Z -3949
#13 X -205091 Y 313597 Z -11060


HLN-A #1 X 288848 Y 149662 Z -24566
HLN-A #2 X74231 Y 162135 Z -24879
HLN-A #3 X-177123 Y -177656 Z -6519


#1 -247878 -242857 -11354
#2 241639 -13415 -18136
#3 29828 264660 -20900
#4 280862 -276633 -15180
#5 -229229 90391 -25240