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Showing results for tags 'ne illinois'.
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From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 37mm X 30mm (1-7/16" x 1-3/16"). MILD SULFURIC ACID BATH APPLIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 70mm X 25mm (2-3/4" x 1"). FRAGMENT OF EACH HALF GLUED BACK INTO POSITION. -
From the album: Mark's Mazon Creek Fossils
CONVEX HALF SIDERITE CONCRETION, FOUND AS-IS. SPECIMEN 63mm X 21mm (2-7/16" x 13/16"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 80mm X 27mm (3-3/16" x 1-1/16"). BOTH HALVES GLUED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 70mm X 30mm (2-3/4" x 1-3/16"). -
From the album: Mark's Mazon Creek Fossils
FRAGMENT OF CONCAVE HALF OF SIDERITE CONCRETION, FOUND AS-IS. SPECIMEN 50mm X 21mm (2" x 13/16"). MILD SULFURIC ACID BATH APPLIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES OF SISIDERITE CONCRETION, SPLIT BY HAMMER BLOW. 19mm X 4.5mm (3/4" x 3/16"). ACETIC ACID BATH APPLIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 50mm X 18mm (2" x 11/16"). MILD SULFURIC ACID BATH APPLIED. -
J0015 ?Senftenbergia plumosa forma dentata
Mark Kmiecik posted a gallery image in Member Collections
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & HAMMER BLOW. PART OF BOTH HALVES CRUMBLED. SPECIMEN 43mm X 28mm (1-11/16" x1-1/16"). NONE. MILD SULFURIC ACID BATH APPLIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 40mm X 27mm (1-9/16" x 1-1/16"). TWO FRAGMENTS OF RIM OF CONVEX HALF GLUED INTO POSITION. MILD SULFURIC ACID BATH APPLIED. -
From the album: Mark's Mazon Creek Fossils
CONCAVE HALF OF SIDERITE CONCRETION, FOUND AS-IS. SPECIMEN 24mm X 14mm (15/16" x 9/16"). -
E0016 Macroneuropteris scheuchzeri basal pinnule
Mark Kmiecik posted a gallery image in Member Collections
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 15mm X 15mm (5/8" x 5/8"). BASAL PINNULE. -
From the album: Mark's Mazon Creek Fossils
CONVEX HALF SIDERITE CONCRETION, FOUND AS IS. APPARENTLY HAMMERED AND DISCARDED BY SOMEONE. SPECIMEN 44mm. X 12mm (1-3/4" x 1/2"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 18mm X 9mm (11/16" x 3/8"). CONVEX HALF LOOSE IN MATRIX. -
From the album: Mark's Mazon Creek Fossils
CONCAVE HALF OF SIDERITE CONCRETION, FOUND AS-IS.SPECIMEN 23mm X 15mm (7/8" x 5/8"). -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 50mm X 18mm (2" x 11/16"). ACETIC ACID BATH APPLIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 40mm X 4mm (1-9/16" x 3/16"). EXHIBITS UNUSUAL STRIATIONS. MILD SULFURIC ACID BATH. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 18mm X 10mm (11/16" x 3/8"). MILD SULFURIC ACID BATH. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 22mm X 14mm (7/8" x 9/16"). SINGLE WHORL. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SEPARATED BY FREEZE/THAW METHOD & LIGHT HAMMER BLOW. SPECIMEN 27mm X 25mm (1-1/16" x 1"). SINGLE WHORL WITH INTERESTING PROXIMAL FEATURE. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 21mm X 18mm (13/16" x 11/16"). CONVEX HALF BROKEN IN HALF, GLUED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 15mm X 3mm (5/8" x 1/8"). CALCIFIED. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 20mm X 5mm (13/16" X 3/16"). -
E0017 Macroneuropteris scheuchzeris basal pinnule
Mark Kmiecik posted a gallery image in Member Collections
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN 15mm X 13mm (5/8" X 1/2"). BASAL PINNULE. -
From the album: Mark's Mazon Creek Fossils
BOTH HALVES SIDERITE CONCRETION, SPLIT BY HAMMER BLOW. SPECIMEN(EXPOSED PORTION) 10mm X 3mm (3/8" x 3/16"). SPECIMEN PARTIALLY CONCEALED IN MATRIX.
