Hemse Formation, Group

Geology

Group: Hemse

Formations: unnamed (37), Eke (3), Etelhem (37), Hemse (1), Hemse Beds (1), Levide (1), När (65), Petes (28)

Members: unnamed (5), B (1), Etelhem (1), Marl NW (3), Unit C (1), Unit D Reefs (1)

Lithologies: marl (106), lime mudstone (11), wackestone (1), "reef rocks" (4), floatstone (1), rudstone (18), framestone (2), "limestone" (113), "carbonate" (4)

Paleoenvironments: marine indet. (6), carbonate indet. (85), shallow subtidal indet. (6), open shallow subtidal (1), lagoonal/restricted shallow subtidal (1), sand shoal (3), reef, buildup or bioherm (33), perireef or subreef (6), intrashelf/intraplatform reef (1), deep subtidal ramp (10), deep subtidal indet. (63), offshore indet. (2)

Age range: base of the Gorstian to the top of the Ludfordian or 427.40000 to 423.00000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Wenlock - Leintwardine433.4 - 419.2Sweden (Gotland) (192358 192361 192371 192372)
Gorstian427.4 - 425.6Sweden (Gotland) (13562 13563 13564 13565 13603 13698 184633 155700 184496 184497 184498 184499 184502 184628 184629 184630 184631 184632 184634 184635 184636 184642 184643 184975 184976 184977 184978 184979 184980 184982 184983 184984 184986 184994 184995 185946 192194 210906 210907 210908 210909 210910 210911 210912 210913 210914 210915 210916 210917 210918 210919 210920 210921 210923 210924 210925 210929 210930 210931 210958 210959 210960 210961 210962 210963 210964 210965 210967 210968 210969 210970)
Gorstian - Ludfordian427.4 - 423.0Sweden (Gotland) (13531 13617 13636 13646 13721 184987 184988 184989 184990 184991 184992 184993 192153 192158 192159 192173 192193 192224 192270 210933 210934)
Gorstian - Ludfordian427.4 - 423.0Sweden (192207)
Ludlow427.4 - 423.0Sweden (61777 61778)
Ludlow427.4 - 423.0Sweden (Gotland) (26923)
Ludfordian425.6 - 423.0Sweden (Gotland) (13566 13567 13568 13569 13570 13571 13572 13616 13637 13699 13820 13833 65040 65041 65042 65043 65044 65045 65046 65047 65048 65049 70377 70432 184302 184306 184307 184308 184309 184310 184311 184312 184313 184314 184315 184316 184317 184318 184319 184320 184321 184322 184323 184324 184325 184326 184327 184328 184329 184330 184331 184332 184333 184334 184335 184336 184337 184338 184339 184340 184341 184342 184343 184344 184345 184346 184644 184646 184648 184649 184650 184651 184652 184653 184654 184904 184919 184920 184921 184922 184923 184924 184925 184926 184942 184974 184981 192225 210936 210937 210938 210939 210940 210941 210942 210943 210944 210945 210946 210947 210948 210949 210950 210971 210972 210974 210986 210987 210988 210989 210990 210991 210993 210996 233411)
Ludfordian425.6 - 423.0Sweden (34406 34407)